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Displa

y

Degaussing

(Demagnetizing)

Required

Equipmen

t

and

T

o ols

An

y

CR

T

demagnetizer

or

bulk

tap

e

eraser

An

tistatic

wrist

strap

:

:

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HP

P/N

9300-1367

An

tistatic

wrist

strap

cord

:

:

:

:

:

:

:

:

:

:

:

:

:

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HP

P/N

9300-0980

Static-control

table

mat

and

earth

ground

wire

:

:

:

:

:

:

:

:

:

:

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:

:

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:

HP

P/N

9300-0797

As

with

all

color

monitors,

the

display

is

v

ery

susceptible

to

external

magnetic

elds.

These

elds

can

originate

from

man

y

sources,

including

unshielded

motors,

metal

frame

tables,

and

from

the

earth

itself.

The

usual

symptom

is

a

discoloration

or

slight

dimming

of

the

display

usually

near

the

top

left

corner

of

the

display

.

If

this

problem

is

observ

ed,

remov

e

the

device

causing

the

magnetic

eld.

In

extreme

cases,

a

total

color

shift

may

b e

observ

ed;

for

example,

a

trace

that

w

as

red

may

shift

to

green.

This

do es

not

indicate

a

problem

with

the

display;

it

is

c

haracteristic

of

all

color

displays.

In

coun

tries

that

use

50

Hz

A

C

p o

w

er,

some

10

Hz

jitters

may

b e

noticed.

1.

If

the

display

b ecomes

magnetized,

or

if

color

purity

is

a

problem,

cycle

the

analyzer

p o

w

er

sev

eral

times.

Lea

v

e

the

instrumen

t

o

for

at

least

15

seconds

b efore

turning

it

on.

This

will

activ

ate

the

automatic

degaussing

circuitry

in

the

display

.

2.

If

the

display

color

purity

is

still

a

problem,

y

ou

m

ust

use

a

commercially

a

v

ailable

demagnetizer

suc

h

as

a

CR

T

demagnetizer

or

a

bulk

tap

e

eraser.

F

ollo

w

the

man

ufacturer's

instructions

k

eeping

in

mind

of

the

follo wing:

A

t

the

rst

pass,

do

NOT

place

the

demagnetizer

closer

than

4

inc

hes

(10

cm)

from

the

face

of

the

display

while

demagnetizing

the

display

.

A

t

the

second

pass,

if

y

ou

did

not

completely

demagnetize

the

display

,

mov

e

the

demagnetizer

to

a

slightly

closer

distance

un

til

the

display

is

demagnetized.

Caution

If

y

ou

apply

an

excessiv

ely

strong

magnetic

eld

to

the

display

face,

y

ou

can

p ermanen

tly

destroy

the

display

.

DRAFT

3/21/106

15:11

Adjustments

and

Correction

Constants

3-41

Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com

Содержание 8753D

Страница 1: ...buy your excess underutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demos In stock Ready to ship TAR certified secure asset solutions Expert team I Trust guarantee I 100 satisfaction All trademarks brand names and brands appearing herein are the property of th...

Страница 2: ...nt website in an effort to help you support your product This manual provides the best information we could find It may be incomplete or contain dated information and the scan quality may not be ideal If we find a better copy in the future we will add it to the Agilent website Support for Your Product Agilent no longer sells or supports this product You will find any other available product inform...

Страница 3: ...Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 4: ...Service Guide HP 8753D Network Analyzer Option 011 ABCDE Printed in USA DRAFT 3 21 106 15 16 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 5: ...ar purpose Hewlett Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material c Copyright Hewlett Packard Company 1995 1996 1997 All Rights Reserved Reproduction adaptation or translation without prior written permission is prohibited except as allowed under the copyright laws 1400 Fountai...

Страница 6: ...nic Mode 1 7 Option 006 6 GHz Operation 1 7 Option 010 Time Domain 1 7 Option 1CM Rack Mount Flange Kit Without Handles 1 7 Option 1CP Rack Mount Flange Kit With Handles 1 7 Service and Support Options 1 8 Option W31 1 8 Option W51 1 8 Option W32 1 8 Option W52 1 8 Option W34 1 8 Option W54 1 9 Index DRAFT 3 21 106 15 06 Contents 1 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURC...

Страница 7: ...equired Tools 1 1 1 2 Service Test Equipment 1 2 1 3 Connector Care Quick Reference 1 6 Contents 2 DRAFT 3 21 106 15 06 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 8: ...for SMA nuts 3 16 5 16 and 9 16 inch hex nut drivers 5 16 inch open end torque wrench set to 10 in lb 2 5 mm hex key driver Non conductive and non ferrous adjustment tool Needle nose pliers Tweezers Anti static work mat with wrist strap Floppy Disk 3 5 inch DRAFT 3 21 106 15 06 Service Equipment and Analyzer Options 1 1 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisa...

Страница 9: ...for Option 006 3 GHz 6 GHz HP 85046A1 HP 85047A2 P Transmission Re ection Test Set Frequency 300 kHz 3 GHz Directivity 30 dB HP 85044A P Tool Kit No substitute HP part number 08753 60023 T Photometer Tektronix J16 A Photometer Probe Tektronix J6503 A Light Occluder Tektronix 016 0305 00 CRT Demagnetizer or Bulk Tape Eraser A Printer HP ThinkJet DeskJet LaserJet P Floppy Disk 3 5 inch HP 92192A A C...

Страница 10: ...120 4779 P RF Cable 50 Type N HP P N 8120 4781 P RF Cable 50 Type N m to Type N m HP 11500B A RF Cable 50 7 mm 24 inch matched HP 11857D P HP IB Cable HP 10833A B C D A P BNC Cable HP P N 8120 1840 A P Adapter Type N f to Type N f HP P N 1250 1472 A P Adapter Type N m to Type N m HP P N 1250 1475 A P Adapter Type N f to APC 7 HP 11524A P Adapter Type N m to APC 7 HP 11525A P Adapter APC 3 5 f to T...

Страница 11: ...r 50 dB 2 96 Hz and passband that includes 800 MHz HP P N 9135 0198 A Termination 50 Type N m Return loss 30 dB HP 908A P Anti static Wrist Strap HP P N 9300 1367 A P T Anti static Wrist Strap Cord HP P N 9300 0980 A P T Static control Table Mat and Earth Ground Wire HP P N 9300 0797 A P T P Performance Tests A Adjustment T Troubleshooting 1 4 Service Equipment and Analyzer Options DRAFT 3 21 106 ...

Страница 12: ...nnection techniques extends the life of these devices In addition you obtain the most accurate measurements This type of information is typically located in Chapter 3 of the calibration kit manuals For additional connector care instruction contact your local Hewlett Packard Sales and Service O ce about course numbers HP 85050A 24A and HP 85050A 24D See the following table for quick reference tips ...

Страница 13: ...ort beads Clean connector threads Gaging Connectors Do Do Not Clean and zero the gage before use Use an out of spec connector Use the correct gage type Use correct end of calibration block Gage all connectors before rst use Making Connections Do Do Not Align connectors carefully Apply bending force to connection Make preliminary connection lightly Over tighten preliminary connection Turn only the ...

Страница 14: ...laying the re ection coe cient of a network versus time determines the magnitude and location of each discontinuity Displaying the transmission coe cient of a network versus time determines the characteristics of individual transmission paths Time domain operation retains all accuracy inherent with the correction that is active in of such devices as SAW lters SAW delay lines RF cables and RF anten...

Страница 15: ...twork analyzer Option W31 This option adds two years of on site repair to the product warranty providing three years of repair coverage Option W51 This option adds four years of on site repair to the product warranty providing ve years of repair coverage Option W32 This option provides three years of return to HP calibration service Option W52 This option provides ve years of return to HP calibrat...

Страница 16: ...ett Packard s support organization These options cover a range of on site services and agreements with varying response times as well as return to HP agreements and per incident pricing Contact your local Hewlett Packard customer engineer for details DRAFT 3 21 106 15 06 Service Equipment and Analyzer Options 1 9 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scien...

Страница 17: ...Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 18: ... Performance Test Record For Analyzers with a Frequency Range of 300 kHz to 3 GHz 2a 1 DRAFT 3 21 106 15 21 Contents 1 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 19: ...Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 20: ...Hz to 3 GHz Note See the next Performance Test Record section if your analyzer frequency range is from 30 kHz to 6 GHz Option 006 DRAFT 3 21 106 15 21 Performance Test Record 2a 1 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 21: ...Option s Firmware Revision Ambient Temperature C Relative Humidity Test Equipment Used Description Model Number Trace Number Cal Due Date Frequency Counter Power Meter Power Sensor Calibration Kit Veri cation Kit Notes Comments 2a 2 Performance Test Record DRAFT 3 21 106 15 21 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 22: ...840 16 000 160 6 0 000 028 220 31 0 30 999 690 31 000 310 6 0 000 053 730 60 999 999 60 999 390 61 000 610 6 0 000 104 800 121 0 120 998 790 121 001 210 6 0 000 206 800 180 0 179 998 200 180 001 800 6 0 000 307 200 310 0 309 995 900 310 003 100 6 0 000 528 300 700 0 699 930 000 700 007 000 6 0 001 191 700 1 300 0 1 299 987 1 300 013 6 0 002 212 300 2 000 0 1 999 980 2 000 020 6 0 003 403 000 3 000...

Страница 23: ...nearity and Accuracy 0 Path Loss Calculations Worksheet 0 CW Frequency Source Output Power Level dBm First Value dB Second Value dB Path Loss dB 300 kHz 10 20 MHz 10 50 MHz 10 100 MHz 10 200 MHz 10 500 MHz 10 1 GHz 10 2 GHz 10 3 GHz 10 2a 4 Performance Test Record DRAFT 3 21 106 15 21 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 24: ... 6 0 25 6 0 02 1 9 6 0 25 6 0 02 3 7 6 0 25 6 0 02 5 5 6 0 25 6 0 02 7 3 6 0 25 6 0 0 9 1 6 0 25 6 0 0 11 0 1 6 0 25 6 0 0 13 0 3 6 0 25 6 0 0 15 0 5 6 0 5 6 0 0 17 0 7 6 0 5 6 0 17 20 0 10 6 0 5 6 0 17 CW Freq 3 GHz 0 5 15 6 0 25 6 0 02 0 3 13 6 0 25 6 0 02 0 1 11 6 0 25 6 0 02 1 9 6 0 25 6 0 02 3 7 6 0 25 6 0 02 5 5 6 0 25 6 0 02 7 3 6 0 25 6 0 0 9 1 6 0 25 6 0 0 11 0 1 6 0 25 6 0 0 13 0 3 6 0 2...

Страница 25: ... Calibrated Power Level dB Measured Value dB Power Level Accuracy dB Spec dB Meas Uncer dB Source Output Power Level 10dBm 0 300 6 1 0 6 0 33 20 000 6 1 0 6 0 10 50 000 6 1 0 6 0 10 100 000 6 1 0 6 0 11 200 000 6 1 0 6 0 11 500 000 6 1 0 6 0 11 1000 000 6 1 0 6 0 11 2000 000 6 1 0 6 0 20 3000 000 6 1 0 6 0 20 2a 6 Performance Test Record DRAFT 3 21 106 15 21 Artisan Scientific Quality Instrumentat...

Страница 26: ...ci cation dB Marker Value dB Measurement Uncertainty dB 300 kHz 0 35 6 1 0 3 29 MHz 0 35 6 1 0 3 31 MHz 0 35 6 1 0 15 90 MHz 0 35 6 1 0 16 10 MHz 0 35 6 1 0 30 90 MHz 0 35 6 1 0 31 10 MHz 0 35 6 1 0 1 6069 GHz 0 35 6 1 0 1 6071 GHz 0 35 6 1 0 3 000 GHz 0 35 6 1 0 DRAFT 3 21 106 15 21 Performance Test Record 2a 7 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scient...

Страница 27: ...for External Source Mode CW Frequency MHz Frac N VCO Lower Limit MHz Frac N VCO Upper Limit MHz Measured Value MHz Measurement Uncertainty 10 49 496 50 496 N A 20 37 620 38 380 N A 100 49 005 49 995 N A 1000 36 630 37 370 N A 3000 58 216 59 392 N A 2a 8 Performance Test Record DRAFT 3 21 106 15 21 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 28: ...Frequency Range IF Bandwidth Speci cation dBm Calculated Value Measurement Uncertainty Receiver Channel A 300 kHz 3 0 GHz 3 kHz 0 90 N A 300 kHz 3 0 GHz 10 Hz 0 110 N A Receiver Channel B 300 kHz 3 0 GHz 10 Hz 0 110 N A 300 kHz 3 0 GHz 3 kHz 0 90 N A DRAFT 3 21 106 15 21 Performance Test Record 2a 9 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 29: ...est Di erence Spec dB Meas Uncer dB Example 0 10 0 0 10 14 0 10 09 0 10 10 0 14 6 1 6 0 05 300 kHz 6 1 6 0 14 5 MHz 6 1 6 0 10 16 MHz 6 1 6 0 10 31 MHz 6 1 6 0 10 61 MHz 6 1 6 0 10 121 MHz 6 1 6 0 10 180 MHz 6 1 6 0 10 310 MHz 6 1 6 0 10 700 MHz 6 1 6 0 10 1 5 GHz 6 1 6 0 10 2 0 GHz 6 1 6 0 10 2 5 GHz 6 1 6 0 11 3 0 GHz 6 1 6 0 11 2a 10 Performance Test Record DRAFT 3 21 106 15 21 Artisan Scientif...

Страница 30: ...ber Date 7 7 8 Phase Frequency Response Frequency Range Ratio Speci cation Measured Value Measurement Uncertainty 300 kHz 3 GHz A R 6 3 6 0 67 300 kHz 3 GHz B R 6 3 6 0 67 300 kHz 3 GHz A B 6 3 6 0 67 DRAFT 3 21 106 15 21 Performance Test Record 2a 11 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 31: ...o A Crosstalk 300 kHz 1 0 GHz 0 100 6 5 1 dB 1 0 GHz 3 0 GHz 0 90 6 5 1 dB R into B Crosstalk 300 kHz 1 0 GHz 0 100 6 5 1 dB 1 0 GHz 3 0 GHz 0 90 6 5 1 dB B into A Crosstalk 300 kHz 1 0 GHz 0 100 6 5 1 dB 1 0 GHz 3 0 GHz 0 90 6 5 1 dB A into B Crosstalk 300 kHz 1 0 GHz 0 100 6 5 1 dB 1 0 GHz 3 0 GHz 0 90 6 5 1 dB 2a 12 Performance Test Record DRAFT 3 21 106 15 21 Artisan Scientific Quality Instrum...

Страница 32: ...Trace Noise CW Frequency GHz Ratio Measured Value Speci cation rms Measurement Uncertainty 3 A R 0 006 dB 6 0 001 dB 3 B R 0 006 dB 6 0 001 dB 3 A B 0 006 dB 6 0 001 dB 3 A B 0 038 6 0 01 3 B R 0 038 6 0 0 3 A R 0 038 6 0 01 DRAFT 3 21 106 15 21 Performance Test Record 2a 13 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 33: ...11 Receiver Input Impedance Frequency Range B Return Loss A R A Return Loss B R R Return Loss A B Speci cation dB Measurement Uncertainty dB 300 kHz 2 MHz 20 6 0 58 2 MHz 1 3 GHz 23 6 0 58 1 3 GHz 3 GHz 20 6 0 58 2a 14 Performance Test Record DRAFT 3 21 106 15 21 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 34: ...nce Reference Reference 0 30 20 0 050 6 0 008 0 40 30 0 050 6 0 008 0 50 40 0 050 6 0 008 0 60 50 0 058 6 0 017 0 70 60 0 089 6 0 017 0 80 70 0 240 6 0 017 0 90 80 0 680 6 0 017 0 100 90 1 950 6 0 027 Channel A 0 10 0 0 075 6 0 008 0 20 Ref 10 Reference Reference Reference Reference Reference 0 30 20 0 050 6 0 008 0 40 30 0 050 6 0 008 0 50 40 0 050 6 0 008 0 60 50 0 058 6 0 017 0 70 60 0 089 6 0 ...

Страница 35: ...urement Uncertainty Channel A 50 MHz 0 32 dB 6 0 1 dB 1 GHz 0 32 dB 6 0 1 dB 2 GHz 0 32 dB 6 0 1 dB 3 GHz 0 32 dB 6 0 1 dB Channel B 50 MHz 0 32 dB 6 0 1 dB 1 GHz 0 32 dB 6 0 1 dB 2 GHz 0 32 dB 6 0 1 dB 3 GHz 0 32 dB 6 0 1 dB Channel R 50 MHz 0 32 dB 6 0 1 dB 1 GHz 0 32 dB 6 0 1 dB 2 GHz 0 32 dB 6 0 1 dB 3 GHz 0 32 dB 6 0 1 dB 2a 16 Performance Test Record DRAFT 3 21 106 15 21 Artisan Scientific Q...

Страница 36: ...ower dBm Measured Value degrees Speci cation degrees Measurement Uncertainty Channel A 50 MHz 5 2 N A 1 GHz 5 2 N A 2 GHz 5 2 N A 3 GHz 5 2 N A Channel B 50 MHz 5 2 N A 1 GHz 5 2 N A 2 GHz 5 2 N A 3 GHz 5 2 N A Channel R 50 MHz 5 2 N A 1 GHz 5 2 N A 2 GHz 5 2 N A 3 GHz 5 2 N A DRAFT 3 21 106 15 21 Performance Test Record 2a 17 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www...

Страница 37: ...easured Value Measurement Uncertainty dB Source Harmonics 1 5 2nd 0 25 6 1 1 0 3rd 0 25 6 1 Source and Receiver Harmonics 1 5 A 2nd 0 15 6 1 1 0 A 3rd 0 30 6 1 1 5 B 2nd 0 15 6 1 1 0 B 3rd 0 30 6 1 Receiver Harmonics 1 5 B 2nd 0 15 6 1 1 0 B 3rd 0 30 6 1 1 5 A 2nd 0 15 6 1 1 0 A 3rd 0 30 6 1 2a 18 Performance Test Record DRAFT 3 21 106 15 21 Artisan Scientific Quality Instrumentation Guaranteed 88...

Страница 38: ... MHz 6 1 6 0 17 dB 31 MHz 93 MHz 6 1 6 0 17 dB 61 MHz 122 MHz 6 1 6 0 17 dB 61 MHz 183 MHz 6 1 6 0 17 dB 121 MHz 242 MHz 6 1 6 0 17 dB 121 MHz 363 MHz 6 1 6 0 17 dB 180 MHz 360 MHz 6 1 6 0 17 dB 180 MHz 540 MHz 6 1 6 0 17 dB 310 MHz 620 MHz 6 1 6 0 17 dB 310 MHz 930 MHz 6 1 6 0 17 dB 700 MHz 1 4 GHz 6 1 6 0 17 dB 700 MHz 2 1 GHz 6 1 6 0 17 dB 1 GHz 2 GHz 6 1 6 0 17 dB 1 GHz 3 GHz 6 1 6 0 17 dB 1 5...

Страница 39: ...Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 40: ... Performance Test Record For Analyzers with a Frequency Range of 30 kHz to 6 GHz 2b 1 DRAFT 3 21 106 15 21 Contents 1 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 41: ...Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 42: ... kHz to 6 GHz Note See the previous Performance Test Record section if your analyzer frequency range is from 300 kHz to 3 GHz DRAFT 3 21 106 15 21 Performance Test Record 2b 1 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 43: ...rial No Option s Firmware Revision Ambient Temperature C Relative Humidity Test Equipment Used Description Model Number Trace Number Cal Due Date Frequency Counter Power Meter Power Sensor Calibration Kit Veri cation Kit Notes Comments 2b 2 Performance Test Record DRAFT 3 21 106 15 21 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 44: ... 0 000 053 730 60 999 999 60 999 390 61 000 610 6 0 000 104 800 121 0 120 998 790 121 001 210 6 0 000 206 800 180 0 179 998 200 180 001 800 6 0 000 307 200 310 0 309 995 900 310 003 100 6 0 000 528 300 700 0 699 930 000 700 007 000 6 0 001 191 700 1 300 0 1 299 987 1 300 013 6 0 002 212 300 2 000 0 1 999 980 2 000 020 6 0 003 403 000 3 000 0 2 999 970 3 000 030 6 0 005 104 000 4 000 0 3 999 960 4 ...

Страница 45: ...y and Accuracy 0 Path Loss Calculations Worksheet 0 CW Frequency Source Output Power Level dBm First Value dB Second Value dB Path Loss dB 300 kHz 10 20 MHz 10 50 MHz 10 100 MHz 10 200 MHz 10 500 MHz 10 1 GHz 10 2 GHz 10 3 GHz 10 4 GHz 10 5 GHz 10 6 GHz 10 2b 4 Performance Test Record DRAFT 3 21 106 15 21 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific co...

Страница 46: ...B Meas Uncer dB CW Frequency 300kHz 0 5 15 6 0 25 6 0 02 0 3 13 6 0 25 6 0 02 0 1 11 6 0 25 6 0 02 1 9 6 0 25 6 0 02 3 7 6 0 25 6 0 02 5 5 6 0 25 6 0 02 7 3 6 0 25 6 0 0 9 1 6 0 25 6 0 0 11 0 1 6 0 25 6 0 0 13 0 3 6 0 25 6 0 0 15 0 5 6 0 5 6 0 0 18 0 8 6 0 5 6 0 17 CW Frequency 3 GHz 0 5 15 6 0 25 6 0 02 0 3 13 6 0 25 6 0 02 0 1 11 6 0 25 6 0 02 1 9 6 0 25 6 0 02 3 7 6 0 25 6 0 02 5 5 6 0 25 6 0 0...

Страница 47: ...nearity dB Spec dB Meas Uncer dB 7 3 6 0 25 6 0 0 9 1 6 0 25 6 0 0 11 0 1 6 0 25 6 0 0 13 0 3 6 0 25 6 0 0 15 0 5 6 0 5 6 0 0 18 0 8 6 0 5 6 0 17 CW Frequency 6 GHz 0 5 15 6 0 25 6 0 02 0 3 13 6 0 25 6 0 02 0 1 11 6 0 25 6 0 02 1 9 6 0 25 6 0 02 3 7 6 0 25 6 0 02 5 5 6 0 25 6 0 02 7 3 6 0 25 6 0 0 9 1 6 0 25 6 0 0 11 0 1 6 0 25 6 0 0 13 0 3 6 0 5 6 0 0 15 0 5 6 0 5 6 0 0 18 0 8 6 0 5 6 0 17 2b 6 P...

Страница 48: ...asured Value dB Power Level Accuracy dB Spec dB Meas Uncer dB Source Output Power Level 10dBm 0 300 6 1 0 6 0 33 20 000 6 1 0 6 0 10 50 000 6 1 0 6 0 10 100 000 6 1 0 6 0 11 200 000 6 1 0 6 0 11 500 000 6 1 0 6 0 11 1 000 000 6 1 0 6 0 11 2 000 000 6 1 0 6 0 20 3 000 000 6 1 0 6 0 20 4 000 000 6 1 0 6 0 17 5 000 000 6 1 0 6 0 17 6 000 000 6 1 0 6 0 17 DRAFT 3 21 106 15 21 Performance Test Record 2...

Страница 49: ...e dB Measurement Uncertainty dB 300 kHz 0 35 6 1 0 3 29 MHz 0 35 6 1 0 3 31 MHz 0 35 6 1 0 15 90 MHz 0 35 6 1 0 16 10 MHz 0 35 6 1 0 30 90 MHz 0 35 6 1 0 31 10 MHz 0 35 6 1 0 1 6069 GHz 0 35 6 1 0 1 6071 GHz 0 35 6 1 0 3 000 GHz 0 35 6 2 0 4 000 GHz 0 30 6 2 0 5 000 GHz 0 30 6 2 0 6 000 GHz 0 30 6 2 0 2b 8 Performance Test Record DRAFT 3 21 106 15 21 Artisan Scientific Quality Instrumentation Guar...

Страница 50: ...equency MHz Frac N VCO Lower Limit MHz Frac N VCO Upper Limit MHz Measured Value MHz Measurement Uncertainty 10 49 496 50 496 N A 20 37 620 38 380 N A 100 49 005 49 995 N A 1 000 36 630 37 370 N A 3 000 58 216 59 392 N A 4 000 48 181 48 663 N A 5 000 43 470 43 905 N A 6 000 52 165 52 687 N A DRAFT 3 21 106 15 21 Performance Test Record 2b 9 Artisan Scientific Quality Instrumentation Guaranteed 888...

Страница 51: ...ncertainty Receiver Channel A 300 kHz 3 0 GHz 3 kHz 0 90 N A 300 kHz 3 0 GHz 10 Hz 0 110 N A Receiver Channel B 300 kHz 3 0 GHz 10 Hz 0 110 N A 300 kHz 3 0 GHz 3 kHz 0 90 N A Receiver Channel B 3 0 GHz 6 0 GHz 3 kHz 0 85 N A 3 0 GHz 6 0 GHz 10 Hz 0 105 N A Receiver Channel A 3 0 GHz 6 0 GHz 10 Hz 0 105 N A 3 0 GHz 6 0 GHz 3 kHz 0 85 N A 2b 10 Performance Test Record DRAFT 3 21 106 15 21 Artisan Sc...

Страница 52: ... 0 10 14 0 10 09 0 10 10 0 14 6 1 6 0 05 300 kHz 6 1 6 0 14 5 MHz 6 1 6 0 10 16 MHz 6 1 6 0 10 31 MHz 6 1 6 0 10 61 MHz 6 1 6 0 10 121 MHz 6 1 6 0 10 180 MHz 6 1 6 0 10 310 MHz 6 1 6 0 10 700 MHz 6 1 6 0 10 1 5 GHz 6 1 6 0 10 2 0 GHz 6 1 6 0 10 2 5 GHz 6 1 6 0 11 3 0 GHz 6 1 6 0 11 3 5 GHz 6 2 6 0 11 4 0 GHz 6 2 6 0 11 4 5 GHz 6 2 6 0 14 5 0 GHz 6 2 6 0 14 5 5 GHz 6 2 6 0 14 6 0 GHz 6 2 6 0 14 DRA...

Страница 53: ...onse Frequency Range Ratio Speci cation Measured Value Measurement Uncertainty 300 kHz 3 GHz A R 6 3 6 0 67 300 kHz 3 GHz B R 6 3 6 0 67 300 kHz 3 GHz A B 6 3 6 0 67 3 GHz 6 GHz A B 6 10 6 0 67 3 GHz 6 GHz A R 6 10 6 0 67 3 GHz 6 GHz B R 6 10 6 0 67 2b 12 Performance Test Record DRAFT 3 21 106 15 21 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 54: ... 6 5 4 4 5 GHz 6 0 GHz 0 75 6 5 4 R into B Crosstalk 300 kHz 1 0 GHz 0 100 6 5 1 1 0 GHz 3 0 GHz 0 90 6 5 1 3 0 GHz 4 5 GHz 0 82 6 5 4 4 5 GHz 6 0 GHz 0 75 6 5 4 B into A Crosstalk 300 kHz 1 0 GHz 0 100 6 5 1 1 0 GHz 3 0 GHz 0 90 6 5 1 3 0 GHz 4 5 GHz 0 82 6 5 4 4 5 GHz 6 0 GHz 0 75 6 5 4 A into B Crosstalk 300 kHz 1 0 GHz 0 100 6 5 1 1 0 GHz 3 0 GHz 0 90 6 5 1 3 0 GHz 4 5 GHz 0 82 6 5 4 4 5 GHz 6...

Страница 55: ...ceiver Trace Noise CW Frequency GHz Ratio Measured Value Speci cation rms Measurement Uncertainty 6 A R 0 010 dB 6 0 001 DB 6 B R 0 010 dB 6 0 001 DB 6 A B 0 010 dB 6 0 001 DB 6 A B 0 070 6 0 01 6 B R 0 070 6 0 01 6 A R 0 070 6 0 01 2b 14 Performance Test Record DRAFT 3 21 106 15 21 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 56: ...te 7 7 11 Receiver Input Impedance Frequency Range B Return Loss A R A Return Loss B R R Return Loss A B Speci cation dB Measurement Uncertainty dB 300 kHz 2 MHz 20 6 0 58 2 MHz 1 3 GHz 23 6 0 58 1 3 GHz 3 GHz 20 6 0 58 DRAFT 3 21 106 15 21 Performance Test Record 2b 15 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 57: ... Reference Reference Reference 0 30 20 0 050 6 0 008 0 40 30 0 050 6 0 008 0 50 40 0 050 6 0 008 0 60 50 0 058 6 0 017 0 70 60 0 089 6 0 017 0 80 70 0 240 6 0 017 0 90 80 0 680 6 0 017 0 100 90 1 950 6 0 027 Channel A 0 10 0 0 075 6 0 008 0 20 Ref 10 Reference Reference Reference Reference Reference 0 30 20 0 050 6 0 008 0 40 30 0 050 6 0 008 0 50 40 0 050 6 0 008 0 60 50 0 058 6 0 017 0 70 60 0 0...

Страница 58: ... 1 DB 2 GHz 0 32 6 0 1 DB 3 GHz 0 32 6 0 1 DB 4 GHz 0 32 6 0 1 DB 5 GHz 0 32 6 0 1 DB 6 GHz 0 32 6 0 1 DB Channel B 50 MHz 0 32 6 0 1 DB 1 GHz 0 32 6 0 1 DB 2 GHz 0 32 6 0 1 DB 3 GHz 0 32 6 0 1 DB 4 GHz 0 32 6 0 1 DB 5 GHz 0 32 6 0 1 DB 6 GHz 0 32 6 0 1 DB Channel R 50 MHz 0 32 6 0 1 DB 1 GHz 0 32 6 0 1 DB 2 GHz 0 32 6 0 1 DB 3 GHz 0 32 6 0 1 DB 4 GHz 0 32 6 0 1 DB 5 GHz 0 32 6 0 1 DB 6 GHz 0 32 6...

Страница 59: ...surement Uncertainty Channel A 50 MHz 5 2 N A 1 GHz 5 2 N A 2 GHz 5 2 N A 3 GHz 5 2 N A 4 GHz 5 2 N A 5 GHz 5 2 N A 6 GHz 5 2 N A Channel B 50 MHz 5 2 N A 1 GHz 5 2 N A 2 GHz 5 2 N A 3 GHz 5 2 N A 4 GHz 5 2 N A 5 GHz 5 2 N A 6 GHz 5 2 N A Channel R 50 MHz 5 2 N A 1 GHz 5 2 N A 2 GHz 5 2 N A 3 GHz 5 2 N A 4 GHz 5 2 N A 5 GHz 5 2 N A 6 GHz 5 2 N A 2b 18 Performance Test Record DRAFT 3 21 106 15 21 A...

Страница 60: ...peci cation dBc Measured Value Measurement Uncertainty dB Source Harmonics 3 2nd 0 25 6 1 2 3rd 0 25 6 1 Source and Receiver Harmonics 3 A 2nd 0 15 6 1 2 A 3rd 0 30 6 1 3 B 2nd 0 15 6 1 2 B 3rd 0 30 6 1 Receiver Harmonics 3 B 2nd 0 15 6 1 2 B 3rd 0 30 6 1 3 A 2nd 0 15 6 1 2 A 3rd 0 30 6 1 DRAFT 3 21 106 15 21 Performance Test Record 2b 19 Artisan Scientific Quality Instrumentation Guaranteed 888 8...

Страница 61: ... 6 0 07 31 MHz 93 MHz 6 1 6 0 07 61 MHz 122 MHz 6 1 6 0 07 61 MHz 183 MHz 6 1 6 0 07 121 MHz 242 MHz 6 1 6 0 07 121 MHz 363 MHz 6 1 6 0 07 180 MHz 360 MHz 6 1 6 0 07 180 MHz 540 MHz 6 1 6 0 07 310 MHz 620 MHz 6 1 6 0 07 310 MHz 930 MHz 6 1 6 0 07 700 MHz 1 4 GHz 6 1 6 0 07 700 MHz 2 1 GHz 6 1 6 0 07 1 GHz 2 GHz 6 1 6 0 07 1 GHz 3 GHz 6 1 6 0 07 1 5 GHz 3 GHz 6 1 6 0 07 2 GHz 4 GHz 6 2 6 0 07 2 GHz...

Страница 62: ...cedure with a Filter 3 29 Spur Search Procedure without a Filter 3 30 Serial Number Correction Constant Test 55 3 33 Option Numbers Correction Constant Test 56 3 35 Calibration Kit Default Correction Constants Test 57 3 36 Initialize EEPROMs Test 58 3 37 EEPROM Backup Disk Procedure 3 38 How to Retrieve Correction Constant Data from the EEPROM Backup Disk 3 39 Vertical Position and Focus Adjustmen...

Страница 63: ...nce Contents 3 59 Sequence for the High Low Band Transition Adjustment 3 59 Sequences for the Fractional N Frequency Range Adjustment 3 60 Sequences for the Fractional N Avoidance and FM Sideband Adjustment 3 61 Index Contents 2 DRAFT 3 21 106 15 11 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 64: ...play of Five Spurs 3 31 3 14 Target Spur Almost Invisible 3 31 3 15 Vertical Position and Focus Adjustment Locations 3 40 3 16 Location of the FN VCO Adjustment 3 42 3 17 Fractional N Frequency Range Adjustment Display 3 43 3 18 Frequency Accuracy Adjustment Setup 3 45 3 19 Location of the VCXO ADJ Adjustment 3 46 3 20 High Stability Frequency Adjustment Location 3 47 3 21 High Low Band Transition...

Страница 65: ...Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 66: ...avity Oscillator Frequency Correction Constants Test 54 Serial Number Correction Constants Test 55 Option Numbers Correction Constants Test 56 Calibration Kit Default Correction Constants Test 57 Initialize EEPROMs Test 58 EEPROM Backup Vertical Position and Focus Adjustments Display Degaussing Demagnetizing Fractional N Frequency Range Adjustment Frequency Accuracy Adjustment High Low Band Transi...

Страница 67: ...ng EEPROM Backup Disk Output Power Spectral Purity harmonics and mixer spurs or System Veri cation A4 A5 A6 Samplers A9CC Jumper Positions Sampler Magnitude and Phase CC Test 53 IF Ampli er CC Test 51 EEPROM Backup Disk Minimum R Level if R sampler replaced Input Crosstalk Absolute Amplitude Accuracy Frequency Response Input Impedance replace assembly only or System Veri cation A7 Pulse Generator ...

Страница 68: ...itions Source Default CC 9 Test 44 Pretune Default CC Test 45 Analog Bus CC Test 46 RF Output Power CC Test 47 Source Pretune CC Test 48 Sampler Magnitude and Phase CC Test 47 EEPROM Backup Disk Internal Test 0 A10 Digital IF A9CC Jumper Positions Analog Bus CC Test 46 Sampler Magnitude and Phase CC Test 53 ADC Linearity CC Test 52 IF Ampli er CC Test 51 EEPROM Backup Disk Receiver Noise Level Tra...

Страница 69: ...ncy Range and Accuracy A14 Fractional N Digital A9CC Jumper Positions Fractional N Frequency Range EEPROM Backup Disk Frequency Range and Accuracy or System Veri cation A15 Preregulator None Self Test A16 Rear Panel Interface None Internal Test 13 Rear Panel A17 Motherboard None Self Test A18 Display Vertical Position and Focus only if needed Observation of Display Tests 66 80 A19 Graphics System ...

Страница 70: ...9 CC jumper to the ALT position before you run any of the correction constant adjustment routines This is the position for altering the analyzer s correction constants Move the A9 CC jumper to the NRM position after you have run correction constant adjustment routines This is the position for normal operating conditions 7 Reconnect the power line cord and switch on the instrument Figure JUMP3 here...

Страница 71: ...NNNNNNNNN TESTS 4445 4x15 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN EXECUTE TEST NNNNNNNNNNN YES 2 Observe the analyzer for the results of the adjustment routine If the analyzer displays Source Def DONE you have completed this procedure If the analyzer displays Source Def FAIL refer to Source Troubleshooting 3 6 Adjustments and Correction Constants DRAFT 3 21 106 15 11 Artisan Scientific Quality Inst...

Страница 72: ...NNNNNNNNNNN TESTS 4455 4x15 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN EXECUTE TEST NNNNNNNNNNN YES 2 Observe the analyzer for the results of this adjustment routine If the analyzer displays Pretune Def DONE you have completed this procedure If the analyzer displays FAIL refer to the Source Troubleshooting chapter DRAFT 3 21 106 15 11 Adjustments and Correction Constants 3 7 Artisan Scientific Quality...

Страница 73: ... SERVICE MENU NNNNNNNNNNNNNNNNN TESTS 4465 4x15 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN EXECUTE TEST NNNNNNNNNNN YES 2 Observe the analyzer for the results of the adjustment routine If the analyzer displays ABUS Cor DONE you have completed this procedure If the analyzer displays ABUS Cor FAIL refer to the Digital Control Troubleshooting chapter 3 8 Adjustments and Correction Constants DRAFT 3 21 10...

Страница 74: ...ted Sampler Magnitude and Phase Correction Constants Test 53 continue this procedure with step 8 2 Press 4PRESET5 4LOCAL5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SYSTEM CONTROLLER 3 Press 4LOCAL5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SET ADDRESSES NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN ADDRESS P MTR HPIB The default power meter address is 13 Refer to the powe...

Страница 75: ...age that corresponds to the frequency you entered The cal factor and frequency values are found on the back of the sensor If you make a mistake press 4 5 and re enter the correct value d Press NNNNNNNNNNNNNN DONE to complete the data entry for each point Note The following terms are part of the sensor calibration menu NNNNNNNNNNNNNNNNNNNNNNN SEGMENT Allows you to select a frequency point NNNNNNNNN...

Страница 76: ... need to input calibration factors for this frequency range 9 Preset zero and calibrate the power meter and the HP 8482A power sensor 10 Connect the equipment as shown in Figure 3 2 Figure SETUPA here Figure 3 2 Setup A for the HP 8753D Option 011 RF Output Correction Constants 11 Press 4MENU5 NNNNNNNNNNNNNNNNNNNNNNN CW FREQ 43005 4k m5 DRAFT 3 21 106 15 11 Adjustments and Correction Constants 3 1...

Страница 77: ... HP 8481A sensor B If you are using the HP 438A power meter the HP 8481A should be connected to the meter s channel B input If you are using the HP 437B power meter zero and calibrate the HP 8481A sensor 15 Recon gure the equipment as shown in Figure 3 3 16 For Option 006 Instruments Only Use the HP 8482A sensor A in the equipment con guration If you are using the HP 438A power meter the HP 8482A ...

Страница 78: ...NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SERVICE MENU NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN TEST OPTIONS NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN LOSS SENSR LISTS NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN POWER LOSS and enter the power loss data in the same way you entered the calibration factors Source Correction Routine 21 Press 4PRESET5 4SYSTEM5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SERVICE MENU ...

Страница 79: ...ne If the analyzer shows SOURCE Cor DONE press 4PRESET5 and you have completed this procedure If the analyzer fails this routine refer to Source Troubleshooting 3 14 Adjustments and Correction Constants DRAFT 3 21 106 15 11 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 80: ...NNNN TESTS 4485 4x15 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN EXECUTE TEST NNNNNNNNNNN YES 2 Observe the analyzer for the results of this adjustment routine If the analyzer displays Pretune Cor DONE you have completed this procedure If the analyzer displays FAIL refer to Source Troubleshooting DRAFT 3 21 106 15 11 Adjustments and Correction Constants 3 15 Artisan Scientific Quality Instrumentation G...

Страница 81: ...pears to need an adjustment then proceed with the following procedures Note This procedure should be performed with a photometer and only by quali ed personnel 1 Set the photometer probe to NORMAL Press 4POWER5 on the photometer to switch it on to allow 30 minutes of warm up time Background Adjustment 2 In a dimly lit room or with the analyzer display shaded from bright lights press 4PRESET5 4SYST...

Страница 82: ... reduce the life of the display 6 Press the top softkey The analyzer display should have an all white screen 7 Zero the photometer according to the manufacturer s instructions 8 Center the photometer on the analyzer display as shown in Figure 3 5 Figure INTENSE here Figure 3 5 Maximum Intensity Adjustment Setup Note The intensity levels are read with a display bezel installed The glass lter transm...

Страница 83: ...lyzer to bring up the next display adjustment mode 11 Center the photometer on the analyzer display as shown in Figure 3 5 12 Adjust the analyzer front panel knob until the photometer registers 60 Nits or 100 Nits without bezel installed 13 Press the top softkey on the analyzer and observe the display If DONE is displayed on the analyzer the adjustment is done This completes the series of three Di...

Страница 84: ...n constants for absolute amplitude accuracy 1 Connect the equipment as shown in Figure 3 6 using the analyzer s A input Figure IFAMP here Figure 3 6 Setup for IF Amplifier Correction Constants 2 Press 4PRESET5 4SYSTEM5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SERVICE MENU NNNNNNNNNNNNNNNNN TESTS 4515 4x15 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN EXECUTE TEST NNNNNNNNNNN YES NNNNNNNNNNNNNNNNNNNNNNNNNN ...

Страница 85: ...ck that the RF cables are connected from the power splitter to R input and A or B input Then repeat this adjustment routine If the analyzer continues to fail the adjustment routine refer to the Digital Control Troubleshooting chapter 3 20 Adjustments and Correction Constants DRAFT 3 21 106 15 11 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 86: ...TESTS 4525 4x15 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN EXECUTE TEST NNNNNNNNNNN YES Note This routine takes about three minutes 2 Observe the analyzer for the results of the adjustment routine If the analyzer displays ADC Ofs Cor DONE you have completed this procedure If the analyzer displays ADC Ofs Cor FAIL refer to the Digital Control chapter DRAFT 3 21 106 15 11 Adjustments and Correction Cons...

Страница 87: ...ort atness 1 If you just completed Source Correction Constants Test 47 continue this procedure with step 8 2 Press 4PRESET5 4LOCAL5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SYSTEM CONTROLLER 3 Press 4LOCAL5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SET ADDRESSES NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN ADDRESS P MTR HPIB The default power meter address is 13 Refer t...

Страница 88: ...ncy point NNNNNNNNNNNNNN EDIT Allows you to edit or change a previously entered value NNNNNNNNNNNNNNNNNNNN DELETE Allows you to delete a point from the sensor cal factor table NNNNNNNNNNN ADD Allows you to add a point into the sensor cal factor table NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN CLEAR LIST Allows you to erase the entire sensor cal factor table NNNNNNNNNNNNNN DONE Allows you to complete the poi...

Страница 89: ...place it with the HP 8481A sensor B for the 6 GHz measurement If you are using the HP 438A power meter the HP 8481A should be connected to the meter s channel B input If you are using the HP 437B power meter zero and calibrate the HP 8481A sensor 14 Press NNNNNNNNNNNNNNNNNNNNNNNNNN CONTINUE 15 Connect the equipment as shown in Figure 3 8 Use two cables of equal electrical length at the power split...

Страница 90: ...6 Press NNNNNNNNNNNNNNNNNNNNNNNNNN CONTINUE The analyzer starts the second part of the automatic adjustment DRAFT 3 21 106 15 11 Adjustments and Correction Constants 3 25 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 91: ...he analyzer completes the adjustment observe the display If the analyzer shows DONE this procedure is complete If the analyzer shows FAIL press 4PRESET5 and then repeat this entire procedure Sampler Magnitude and Phase Correction Constants If the analyzer shows FAIL again refer to the Receiver Troubleshooting chapter 3 26 Adjustments and Correction Constants DRAFT 3 21 106 15 11 Artisan Scientific...

Страница 92: ...rm this procedure with the recommended lter or a lter with at least 50 dB of rejection at 2 9 GHz and a passband which includes 800 MHz The lter makes spur identi cation substantially faster and more reliable With the lter you need to distinguish between only two spurs each of which should be 10 dB to 20 dB 3 to 4 divisions above the trace noise Without the lter you need to distinguish the target ...

Страница 93: ...NNNNNNNNNNNNNNNNNNNNNNNNN CONTINUE to sweep the rst frequency span three times Each new span overlaps the previous span by 3 MHz the center frequency increases by 2 MHz the span is 5 MHz Therefore anything visible on the right half of the screen of one set of sweeps will appear on the left half or center of the screen when you press NNNNNNNNNNNNNN NEXT 4 Press NNNNNNNNNNNNNN NEXT repeatedly Watch ...

Страница 94: ... and the other softkeys as required to observe and mark the target spur The target spur will appear to the right of a second spur similar to Figure 3 11 6 Rotate the front panel knob to position the marker on the spur and then press NNNNNNNNNNNNNNNNNNNN SELECT DRAFT 3 21 106 15 11 Adjustments and Correction Constants 3 29 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www arti...

Страница 95: ...iations Often it will be di cult to identify positively occasionally it will be nearly impossible to identify Do not hesitate to press NNNNNNNNNNNNNNNNNNNNNNNNNN CONTINUE as many times as necessary to thoroughly inspect the current span The target spur usually appears as one of a group of four evenly spaced spurs as in Figure 3 12 The target spur is on the right most spur fourth from the left On a...

Страница 96: ...Figure 3 13 Target Spur in Display of Five Spurs Figure 3 14 shows another variation of the basic four spur pattern some up some down and the target spur itself almost indistinguishable Figure TARGET3 here Figure 3 14 Target Spur Almost Invisible DRAFT 3 21 106 15 11 Adjustments and Correction Constants 3 31 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific...

Страница 97: ...e results of the adjustment routine If the analyzer displays Cav Osc Cor DONE you have completed this procedure If the analyzer displays FAIL refer to the Source Troubleshooting chapter 3 32 Adjustments and Correction Constants DRAFT 3 21 106 15 11 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 98: ...sing NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SELECT LETTER to enter each letter Enter a total of ten characters four digits one letter and ve nal digits Press NNNNNNNNNNNNNNNNNNNNNNNNNNNNN BACKSPACE if you made a mistake 4 Press NNNNNNNNNNNNNN DONE when you have nished entering the title Caution Mistakes CANNOT be corrected after step 5 is performed unless you contact the factory for a clear ser...

Страница 99: ... recognized by the analyzer a Press 4PRESET5 4SYSTEM5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SERVICE MENU NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN FIRMWARE REVISION b Look for the serial number displayed on the analyzer screen c Rerun this adjustment test If the analyzer continues to fail this adjustment routine contact your nearest HP Sales and Service o ce 3 34 Adjustments and Corre...

Страница 100: ...LECT LETTER to enter each letter Press NNNNNNNNNNNNNNNNNNNNNNNNNNNNN BACKSPACE if you made a mistake 4 Press NNNNNNNNNNNNNN DONE when you have nished entering the title Caution Do not confuse I with 1 or O with 0 zero 5 Press 4SYSTEM5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SERVICE MENU NNNNNNNNNNNNNNNNN TESTS 4565 4x15 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN EXECUTE TEST NNNNNNNNNNN YES 6 Observe t...

Страница 101: ...15 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN EXECUTE TEST NNNNNNNNNNN YES 2 Observe the analyzer for the results of the adjustment routine If the analyzer displays Cal Kit Def DONE press 4PRESET5 and you have completed this procedure If the analyzer does not display DONE contact your nearest HP Sales and Service o ce 3 36 Adjustments and Correction Constants DRAFT 3 21 106 15 11 Artisan Scientific Qu...

Страница 102: ...NNNNNNNNNNNN INTERNAL DISK b Use the front panel knob to highlight the lename that represents your serial number c Press NNNNNNNNNNNNNNNNNNNN RETURN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN RECALL STATE 4PRESET5 If you don t have the correction constants backed up on a disk run all the internal service routines in the following order 1 Display Intensity Correction Constants Test 49 2 Source Default ...

Страница 103: ...TEM5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SERVICE MENU NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SERVICE MODES NNNNNNNNNNNNNN MORE NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN STORE EEPR ON 4SAVE RECALL5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SELECT DISK NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN INTERNAL DISK NNNNNNNNNNNNNNNNNNNN RETURN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SAVE STATE Note The analyzer cre...

Страница 104: ...M data for the analyzer On the factory shipped EEPROM backup disk the lename is FILE1 4 Press NNNNNNNNNNNNNNNNNNNN RETURN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN RECALL STATE to down load the correction constants data into the instrument EEPROM s 5 Perform Serial Number Correction Constants Test 55 and if applicable Option Numbers Correction Constant Test 56 6 Press 4PRESET5 and verify that good da...

Страница 105: ...adjustments Any other adjustments to the color display will void the warranty Vertical Adjustment Procedure 1 Remove the left rear bumpers and left side panel Figure VERT here Figure 3 15 Vertical Position and Focus Adjustment Locations 2 Insert the at head screw driver into the vertical position hole 3 Adjust the control until the softkey labels are aligned with the softkeys Focus Adjustment Proc...

Страница 106: ...AC power some 10 Hz jitters may be noticed 1 If the display becomes magnetized or if color purity is a problem cycle the analyzer power several times Leave the instrument o for at least 15 seconds before turning it on This will activate the automatic degaussing circuitry in the display 2 If the display color purity is still a problem you must use a commercially available demagnetizer such as a CRT...

Страница 107: ...NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANALOG IN Aux Input 4295 4x15 to observe the FN VCO Tun voltage 4 Press 4FORMAT5 NNNNNNNNNNNNNN MORE NNNNNNNNNNNNNN REAL 4SCALE REF5 4 65 4x15 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN REFERENCE VALUE 4 75 4x15 to set and scale channel 1 Press 4MARKER5 to set the marker to the far right of the graticule 5 Press 4CHAN 25 4MENU5 NNNNNNNNNNNNNNNNNNNNNNN CW FR...

Страница 108: ... Figure 3 17 Fractional N Frequency Range Adjustment Display DRAFT 3 21 106 15 11 Adjustments and Correction Constants 3 43 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 109: ...4MARKER5 4FORMAT5 NNNNNNNNNNNNNN MORE NNNNNNNNNNNNNN REAL 4SCALE REF5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN REFERENCE VALUE 475 4x15 10 Observe the analyzer for the results of this adjustment If the marker value is less than 7 you have completed this procedure If the marker value is greater than 7 readjust FN VCO ADJ to 7 Then perform steps 2 to 10 to con rm that the channel 1 and channe...

Страница 110: ... rear bumpers and analyzer top cover using the torx screwdriver 2 Connect the equipment as shown in Figure 3 18 Figure FREQACC here Figure 3 18 Frequency Accuracy Adjustment Setup Note Make sure that the spectrum analyzer and network analyzer references are NOT connected 3 For Option 1D5 Instruments Only Remove the BNC to BNC jumper that is connected between the EXT REF and the 10 MHz Precision Re...

Страница 111: ...12 assembly red extractors and adjust the VCXO ADJ for a spectrum analyzer center frequency measurement of 6 5 kHz See Figure 3 19 7 Replace the A12 assembly if you are unable to adjust the frequency as speci ed Repeat this adjustment test Figure VCXO here Figure 3 19 Location of the VCXO ADJ Adjustment 3 46 Adjustments and Correction Constants DRAFT 3 21 106 15 11 Artisan Scientific Quality Instr...

Страница 112: ...t a narrow screwdriver and adjust the precision frequency reference potentiometer for a spectrum analyzer center frequency measurement of 65 Hz Figure OPT1D5 here Figure 3 20 High Stability Frequency Adjustment Location 10 Replace the A26 board assembly if you cannot adjust for a center frequency measurement of 650 Hz DRAFT 3 21 106 15 11 Adjustments and Correction Constants 3 47 Artisan Scientifi...

Страница 113: ...he ground voltage from the next measurement 3 Press 4MEAS5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN S PARAMETERS NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANALOG IN Aux Input 4235 4x15 4MARKER5 4115 4M 5 4 Press 4SCALE REF5 4 15 4x15 and observe the VCO tuning trace If the left half of trace 0 61000 mV and right half of trace 100 to 200 mV higher one to two divisions no adjustment ...

Страница 114: ...DJ here Figure 3 22 High Low Band Adjustment Locations DRAFT 3 21 106 15 11 Adjustments and Correction Constants 3 49 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 115: ...ewdriver T 15 Antistatic wrist strap HP P N 9300 1367 Antistatic wrist strap cord HP P N 9300 0980 Static control table mat and earth ground wire HP P N 9300 0797 Analyzer warm up time 30 minutes This adjustment minimizes the spurs caused by the API analog phase interpolator on the fractional N assembly circuits It also improves the sideband characteristics 3 50 Adjustments and Correction Constant...

Страница 116: ...ion Bandwidth 100 Hz Center Frequency 676 145105 MHz Span 2 5 kHz 4 On the HP 8753D Option 011 press 4PRESET5 4MENU5 NNNNNNNNNNNNNNNNNNNNNNN CW FREQ 4676 0451055 4M 5 5 Remove the upper rear corner bumpers and the top cover using a torx screwdriver 6 Adjust the 100 kHz R77 for a null minimum amplitude on the spectrum analyzer The minimum signal may or may not drop down into the noise oor DRAFT 3 2...

Страница 117: ... for a null minimum amplitude on the spectrum analyzer 13 On the spectrum analyzer set the center frequency for 676 003450 MHz 14 On the HP 8753D Option 011 press 4MENU5 NNNNNNNNNNNNNNNNNNNNNNN CW FREQ 4676 000455 4M 5 15 Adjust the API3 R45 for a null minimum amplitude on the spectrum analyzer 16 On the spectrum analyzer set the center frequency for 676 003045 MHz 17 On the HP 8753D Option 011 pr...

Страница 118: ... performed satisfactorily repeat the entire procedure Or else replace the A13 board assembly DRAFT 3 21 106 15 11 Adjustments and Correction Constants 3 53 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 119: ...y o set to avoid spurs Optimizing YO cavity oscillator tracking reduces potential phase locked loop problems 1 Remove the upper rear corner bumpers and top cover using a torx screwdriver 2 Mate the adapter to the BNC cable and connect the BNC connector end to AUX INPUT on the analyzer rear panel Connect the BNC center conductor alligator clip to A11 TP10 labeled ERR the shield clip to A11 TP1 GND ...

Страница 120: ...NNNNNNNNNNNNNNNNNNNNNNNNNNNN MARKERREFERENCE 6 Observe the phase locked loop error voltage If spikes are not visible on the analyzer display see Figure 3 26 no adjustment is necessary If spikes are excessive see Figure 3 26 adjust the CAV ADJ potentiometer on the A3 source bias assembly to eliminate the spikes See Figure 3 25 If the spikes persist refer to the Source Troubleshooting chapter Figure...

Страница 121: ... POKE ADDRESS 4 Refer to the table below for the address of each unprotected hardware option Enter the address for the speci c installed hardware option that needs to be enabled or disabled Follow the address entry by NNNNNNNNNNNNNN POKE 4015 4x15 Pressing NNNNNNNNNNNNNN POKE 4015 4x15 after an entry enables the option Pressing NNNNNNNNNNNNNN POKE 405 4x15 after an entry disables the option Hardwa...

Страница 122: ...ted options 8 When you have entered all of the hardware options return the A9 CC jumper to the NRM NORMAL position 9 Perform the EEPROM Backup Disk Procedure located on page 3 42 In Case of Di culty If any of the installed options are missing from the list return to step 2 and reenter the missing option s DRAFT 3 21 106 15 11 Adjustments and Correction Constants 3 57 Artisan Scientific Quality Ins...

Страница 123: ...want to load the le for the High Low Band Transition Adjustment Select NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN LOAD SEQ FNADJ and NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN LOAD SEQ FNCHK if you want to load the les for the Fractional N Frequency Range Adjustment How to Set Up the Fractional N Frequency Range Adjustment 1 Remove the right rear bumpers and right side cover This exposes the a...

Страница 124: ...isions higher than the left half Refer to Source Troubleshooting if you cannot perform the adjustment How to Set Up the Fractional N Spur Avoidance and FM Sideband Adjustment 1 Press 4PRESET5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SEQUENCE X APIADJ where X is the sequence number 2 Remove the upper rear corner bumpers and the top cover using a torx screwdriver 3 Follow the directions...

Страница 125: ...CO TUN SCALE REF 6 x1 REF VALUE 7 x1 MKR CH 2 MENU CW FREQ 31 0001 M u SWEEP TIME 12 375 k m MEAS ANALOG IN 29 x1 FN VCO TUN SCALE REF 2 x1 REF VALUE 6 77 x1 MKR 6 k m Sequence FNCHK checks the VCO adjustment MENU CW FREQ 1 G n SYSTEM SERVICE MENU ANALOG BUS ON SERVICE MODES FRAC N TUNE ON MEAS ANALOG IN 29 x1 MKR SCALE REF REF VALUE 7 x1 3 60 Adjustments and Correction Constants DRAFT 3 21 106 15...

Страница 126: ...ERAL WAIT x 0 x1 TITLE CF 676 145105MZ TITLE TO PERIPHERAL WAIT x 0 x1 CW FREQ 676 045105M u TITLE ADJ A13 100KHZ SEQUENCE PAUSE TITLE CF 676 048105MZ TITLE TO PERIPHERAL WAIT x 0 x1 TITLE ADJ A13 API1 SEQUENCE PAUSE TITLE CF 676 007515MZ TITLE TO PERIPHERAL WAIT x 0 x1 CW FREQ 676 004515M u TITLE ADJ A13 API2 SEQUENCE DRAFT 3 21 106 15 11 Adjustments and Correction Constants 3 61 Artisan Scientif...

Страница 127: ...ITLE ADJ A13 API3 SEQUENCE PAUSE TITLE CF 676 003045MZ TITLE TO PERIPHERAL WAIT x 0 x1 CW FREQ 676 000045M u TITLE ADJ A13 API4 3 62 Adjustments and Correction Constants DRAFT 3 21 106 15 11 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 128: ...bleshooting Systems with Controllers 4 7 Step 4 Faulty Group Isolation 4 8 Power Supply 4 9 Check the Rear Panel LEDs 4 9 Check the A8 Post Regulator LEDs 4 9 Digital Control 4 10 Observe the Power Up Sequence 4 10 Verify Internal Tests Passed 4 10 Source 4 12 Phase Lock Error Messages 4 12 Check Source Output Power 4 13 No Oscilloscope or Power Meter Try the ABUS 4 13 Receiver 4 15 Observe the R ...

Страница 129: ...anel Power Up Sequence 4 10 4 6 Equipment Setup for Source Power Check 4 13 4 7 ABUS Node 16 1V GHz 4 14 4 8 Equipment Setup 4 15 4 9 Typical Measurement Trace 4 16 4 10 HP 8753D Option 011 Overall Block Diagram 4 20 Contents 2 DRAFT 3 21 106 15 12 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 130: ...o identify the assembly or peripheral at fault To identify the portion of the analyzer at fault follow these procedures Step 1 Initial Observations Step 2 Operator s Check Step 3 HP IB System Check Step 4 Faulty Group Isolation DRAFT 3 21 106 15 12 Start Troubleshooting Here 4 1 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 131: ...em Veri cation and Performance Tests Having Your Analyzer Serviced The HP 8753D Option 011 has a one year on site warranty where available If the analyzer should fail any of the following checks call your local HP Sales and Service o ce A customer engineer will be dispatched to service your analyzer on site If a customer engineer is not available in your area follow the steps below to send your an...

Страница 132: ...yzer is operating correctly Figure ORDER4 here Figure 4 1 Preset Sequence If the Self Test Failed Check the AC line power to the analyzer Check the fuse rating listed on rear panel spare inside holder Check the line voltage setting use small screwdriver to change If the problem persists refer to Step 4 Faulty Group Isolation DRAFT 3 21 106 15 12 Start Troubleshooting Here 4 3 Artisan Scientific Qu...

Страница 133: ...dure 1 Switch on the analyzer for a 30 minute warm up 2 Press 4PRESET5 4SYSTEM5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SERVICE MENU NNNNNNNNNNNNNNNNN TESTS 4215 4215 When TEST 21 R A Op Check appears on the analyzer display press NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN EXECUTE TEST 4 4 Start Troubleshooting Here DRAFT 3 21 106 15 12 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURC...

Страница 134: ...litter and cables meet their published speci cations Visually inspect the connectors Retest or refer to Step 4 Faulty Group Isolation as indicated Step 3 HP IB Systems Check Check the analyzer s HP IB functions with a known working passive peripheral such as a plotter printer or disk drive 1 Connect the peripheral to the analyzer using a good HP IB cable 2 Press 4LOCAL5 NNNNNNNNNNNNNNNNNNNNNNNNNNN...

Страница 135: ...nalyzer Continue with Troubleshooting Systems with Multiple Peripherals Troubleshooting Systems with Controllers or the Step 4 Faulty Group Isolation section in this chapter If the result is not a copy of the analyzer display suspect the HP IB function of the analyzer Refer to Chapter 6 Digital Control Troubleshooting If Using an External Disk Drive 1 Select the external disk drive Press 4SAVE REC...

Страница 136: ...ollers Passing the preceding checks indicates that the analyzer s peripheral functions are normal Therefore if the analyzer has not been operating properly with an external controller suspect the controller Check the following Compatibility must be HP 9000 series 200 300 See Chapter 1 Service Equipment and Analyzer Options HP IB interface hardware must be installed Refer to the manual Installing a...

Страница 137: ...provided in Chapter 12 Theory of Operation The checks in the following pages must be performed in the order presented If one of the procedures fails it is an indication that the problem is in the functional group checked Go to the troubleshooting information for the indicated group to isolate the problem to the defective assembly Figure 4 3 illustrates the troubleshooting organization Figure TO4 h...

Страница 138: ...4 4 A15 Preregulator LEDs Check the A8 Post Regulator LEDs Remove the analyzer s top cover Switch on the power Inspect the green LEDs along the top edge of the A8 post regulator assembly All green LEDs should be on The fan should be audible In case of di culty refer to Chapter 5 Power Supply Troubleshooting DRAFT 3 21 106 15 12 Start Troubleshooting Here 4 9 Artisan Scientific Quality Instrumentat...

Страница 139: ...wer Up Sequence Verify Internal Tests Passed 1 Press 4PRESET5 4SYSTEM5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SERVICE MENU NNNNNNNNNNNNNNNNN TESTS NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN INTERNAL TESTS NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN EXECUTE TEST The display should indicate TEST 0 ALL INT PASS If your display shows the above message go to step 2 Otherwise continue with this step If pha...

Страница 140: ... Digital Control Troubleshooting Likewise if the response to front panel or HP IB commands is unexpected troubleshoot the digital control group 2 Perform the Analog Bus test Press NNNNNNNNNNNNNNNNNNNN RETURN 4195 4215 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN EXECUTE TEST If this test fails refer to Chapter 6 Digital Control Troubleshooting If this test passes continue with the next procedure to chec...

Страница 141: ...ould not be acquired thereafter PHASE LOCK LOST Phase lock was acquired but then lost PHASE LOCK CAL FAILED An internal phase lock calibration routine is automatically executed at power on when pretune values drift or when phase lock problems are detected A problem spoiled a calibration attempt POSSIBLE FALSE LOCK The analyzer is achieving phase lock but possibly on the wrong harmonic comb tooth S...

Страница 142: ...this step at 1 and 3 GHz For Option 006 include an additional check at 6 GHz If any incorrect power levels are measured refer to Chapter 7 Source Troubleshooting No Oscilloscope or Power Meter Try the ABUS Monitor ABUS node 16 1 Press 4PRESET5 4START5 43005 4k m5 4STOP5 435 4G n5 4SYSTEM5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SERVICE MENU NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANALOG BUS ON 2 ...

Страница 143: ...bove procedures provide unexpected results or if error messages are present refer to Chapter 7 Source Troubleshooting 4 14 Start Troubleshooting Here DRAFT 3 21 106 15 12 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 144: ... in Figure 4 9 Note The R trace will be 20 dB lower than the A and B trace due to the attenuator on the R input The atness of the trace however should resemble that of the A and B input traces 4 Press 4MEAS5 NNNNN A to check the A channel trace The trace should have about the same atness as the trace in Figure 4 9 5 Move the A input cable to the B input and press NNNNN B to check the B channel tra...

Страница 145: ...leshooting The following symptoms may also indicate receiver failure Receiver Error Messages CAUTION OVERLOAD ON INPUT A POWER REDUCED CAUTION OVERLOAD ON INPUT B POWER REDUCED CAUTION OVERLOAD ON INPUT R POWER REDUCED 4 16 Start Troubleshooting Here DRAFT 3 21 106 15 12 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 146: ...ctivated When this occurs press 4MENU5 NNNNNNNNNNNNNNNNN POWER and enter a lower power level Press NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN POWER TRIP OFF to switch on the power again Faulty Data Any trace data that appears to be below the noise oor of the analyzer 0100 dBm is indicative of a receiver failure DRAFT 3 21 106 15 12 Start Troubleshooting Here 4 17 Artisan Scientific Quality Instr...

Страница 147: ...ms Recon gure the system as it is normally used and recon rm the problem Continue with Chapter 9 Accessories Troubleshooting Accessories Error Messages POWER PROBE SHUT DOWN The biasing supplies to a front panel powered device like a probe or millimeter module are shut down due to excessive current draw Troubleshoot the device 4 18 Start Troubleshooting Here DRAFT 3 21 106 15 12 Artisan Scientific...

Страница 148: ...DRAFT 3 21 106 15 12 Start Troubleshooting Here 4 19 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 149: ...90261 egs sg614d hpg Figure 4 10 HP 8753D Option 011 Overall Block Diagram 4 20 Start Troubleshooting Here DRAFT 3 21 106 15 12 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 150: ...k for a Faulty Assembly 5 9 Check the Operating Temperature 5 10 Inspect the Motherboard 5 10 If the Green LEDs on A8 are not All ON 5 11 Remove A8 Maintain A15W1 Cable Connection 5 11 Check the A8 Fuses and Voltages 5 11 Remove the Assemblies 5 11 Brie y Disable the Shutdown Circuitry 5 12 Inspect the Motherboard 5 15 Error Messages 5 16 Check the Fuses and Isolate A8 5 18 Fan Troubleshooting 5 1...

Страница 151: ... A15W1 Plug Detail 5 8 5 7 Front Panel Probe Power Connector Voltages 5 17 5 8 Power Supply Block Diagram 5 21 Tables 5 1 A8 Post Regulator Test Point Voltages 5 5 5 2 Output Voltages 5 8 5 3 Recommended Order for Removal Disconnection 5 9 5 4 Recommended Order for Removal Disconnection 5 14 Contents 2 DRAFT 3 21 106 15 12 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www art...

Страница 152: ...nd of this chapter the fan is not working refer to Fan Troubleshooting in this chapter The power supply group assemblies consist of the following A8 post regulator A15 preregulator All assemblies however are related to the power supply group because power is supplied to each assembly DRAFT 3 21 106 15 12 Power Supply Troubleshooting 5 1 Artisan Scientific Quality Instrumentation Guaranteed 888 88 ...

Страница 153: ...fer to Chapter 13 Replaceable Parts 3 Replace the faulty assembly and determine what adjustments are necessary Refer to Chapter 14 Assembly Replacement and Post Repair Procedures 4 Perform the necessary adjustments Refer to Chapter 3 Adjustments and Correction Constants 5 Perform the necessary performance tests Refer to Chapter 2 System Veri cation and Performance Tests 5 2 Power Supply Troublesho...

Страница 154: ...wer supply diagnostic LEDs on the A15 preregulator casting by looking through the holes located to the left of the line voltage selector switch See Figure 5 2 During normal operation the bottom green LED is on and the top red LED is o If these LEDs are normal then A15 is 95 veri ed Continue to Check the Green LEDs on A8 If the green LED is not on steadily refer to If the Green LED on A15 is not ON...

Страница 155: ...here is a 95 con dence level that the power supply is veri ed To con rm the last 5 uncertainty of the power supply refer to Measure the Post Regulator Voltages next If any LED on the A8 post regulator is o or ashing refer to If the Green LEDs on A8 are not All ON in this procedure Measure the Post Regulator Voltages Measure the DC voltages on the test points of A8 with a voltmeter Refer to Figure ...

Страница 156: ... 2 AGND n a 3 5 VD 4 9 to 5 3 4 SDIS n a 5 015 V 014 4 to 015 6 6 012 6VPP probe power 012 1 to 012 8 7 15 V 14 5 to 15 5 8 5 VU 5 05 to 5 35 9 05 2 V 05 0 to 05 4 10 22 V 21 3 to 22 7 11 6 V 5 8 to 6 2 DRAFT 3 21 106 15 12 Power Supply Troubleshooting 5 5 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 157: ...ct Figure 5 4 shows how to remove the line fuse using a small at bladed screwdriver to pry out the fuse holder Figure 5 2 shows the location of the line voltage selector switch Use a small at bladed screwdriver to select the correct switch position If the A15 green LED is still not on steadily replace A15 Figure FUSE5 here Figure 5 4 Removing the Line Fuse 5 6 Power Supply Troubleshooting DRAFT 3 ...

Страница 158: ... LED on A15 If the red LED goes out the problem is probably the A8 post regulator Continue to Verify the A15 Preregulator to rst verify that the inputs to A8 are correct If the red LED is still on the problem is probably the A15 preregulator or one of the assemblies obtaining power from it Continue with Check for a Faulty Assembly Figure PWRCABL5 here Figure 5 5 Power Supply Cable Locations DRAFT ...

Страница 159: ...ges A8J2 Connected Voltages A15 Preregulator Mnemonic 1 2 125 to 100 68 to 72 70 V 3 4 22 4 to 33 6 17 0 to 18 4 18 V 5 6 022 4 to 033 6 017 0 to 018 4 018 V 7 N C N C N C 8 9 4 to 14 7 4 to 8 0 8 V 9 10 09 4 to 014 06 7 to 07 3 08 V 11 32 to 48 24 6 to 26 6 25 V 12 N C N C N C NOTE The 5VD supply must be loaded by one or more assemblies at all times or the other voltages will not be correct It co...

Страница 160: ...n extensive disassembly is required refer to Chapter 14 Assembly Replacement and Post Repair Procedures Refer to Chapter 13 Replaceable Parts to identify speci c cables and assemblies that are not shown in this chapter If the red LED goes out the particular assembly or one receiving power from it that allows it to go out is faulty If the red LED is still on after you have checked all of the assemb...

Страница 161: ...mperature problem it is likely that A15 is faulty Inspect the Motherboard If the red LED is still on after replacement or repair of A15 switch o the analyzer and inspect the motherboard for solder bridges and other noticeable defects Use an ohmmeter to check for shorts The 5VD 5VCPU or 5VDSENSE lines may be bad Refer to the block diagram Figure 5 8 at the end of this chapter and troubleshoot these...

Страница 162: ...ssemblies Check the A8 Fuses and Voltages Check the fuses along the top edge of A8 If any A8 fuse has burned out replace it If it burns out again when power is applied to the analyzer A8 or A15 is faulty Determine which assembly has failed as follows 1 Remove the A15W1 cable at A8 See Figure 5 5 2 Measure the voltages at A15W1P1 see Figure 5 6 with a voltmeter having a small probe 3 Compare the me...

Страница 163: ... this condition is caused by the A8 post regulator not supplying enough current To check this reinstall the assemblies in a di erent order to change the loading If the same assembly appears to be faulty replace that assembly If a di erent assembly appears faulty A8 is most likely faulty unless both of the other assemblies are faulty Briefly Disable the Shutdown Circuitry In this step you shutdown ...

Страница 164: ... the power supplies whose A8 LEDs went out when A8TP4 SDIS was connected to chassis ground DRAFT 3 21 106 15 12 Power Supply Troubleshooting 5 13 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 165: ...ssembly Replacement and Post Repair Procedures Refer to Chapter 13 Replaceable Parts to identify speci c cables and assemblies that are not shown in this chapter If all the LEDs light the assembly or one receiving power from it that allows them to light is faulty If the LEDs are still not on steadily continue to Inspect the Motherboard Table 5 4 Recommended Order for Removal Disconnection Assembly...

Страница 166: ...shorted traces In particular inspect the traces that carry the supplies whose LEDs faulted when A8TP4 SDIS was grounded earlier DRAFT 3 21 106 15 12 Power Supply Troubleshooting 5 15 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 167: ...lies on A8 have been shut down Check the temperature of the operating environment it should not be greater than 55 C 131 F The fan should be operating and there should be at least 15 cm 6 in spacing behind and all around the analyzer to allow for proper ventilation PROBE POWER SHUT DOWN The front panel RF probe biasing supplies are shut down due to excessive current draw These supplies are 15VPP a...

Страница 168: ... the 15 V and 012 6 V green LEDs on A8 If the LEDs are on there is an open between the A8 assembly and the front panel probe power connectors Put A8 onto an extender board and measure the voltages at the following pins A8P2 pins 6 and 36 012 6 V A8P2 pins 4 and 34 15 V If the LEDs are o continue with Check the Fuses and Isolate A8 DRAFT 3 21 106 15 12 Power Supply Troubleshooting 5 17 Artisan Scie...

Страница 169: ...er the 15 V or 012 6 V fuse blows or the associated green LEDs do not light replace A8 If the 15 V and 012 6 V green LEDs light troubleshoot for a short between the motherboard connector pins XA8P2 pins 6 and 36 012 6 V and the front panel probe power connectors Also check between motherboard connector pins XA8P2 pins 4 and 34 15 V and the front panel probe power connectors 5 18 Power Supply Troub...

Страница 170: ...nding on air ow and temperature information Its voltage ranges from approximately 01 0 V to 14 7 V and connects to the A17 motherboard via pin 31 of the A8P1 connector Measure the voltages of these supplies while using an extender board to allow access to the PC board connector A8P1 Short A8TP3 to Ground If there is no voltage at A8P1 pins 31 and 32 switch o the analyzer Remove A8 from its motherb...

Страница 171: ...A9 CPU problem Since the A9 CPU assembly is the easiest to substitute do so If the problem ceases replace the A9 If the problem continues replace the A15 preregulator assembly 5 20 Power Supply Troubleshooting DRAFT 3 21 106 15 12 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 172: ... 08753 90261 egs sg629d hpg Figure 5 8 Power Supply Block Diagram DRAFT 3 21 106 15 12 Power Supply Troubleshooting 5 21 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 173: ...Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 174: ...and REF Signal 7 16 FN LO at A12 Check 7 17 4 MHz Reference Signal 7 18 2ND LO Waveforms 7 19 90 Degree Phase O set of 2nd LO Signals in High Band 7 19 In Phase 2nd LO Signals in Low Band 7 20 A12 Digital Control Signals Check 7 21 L ENREF Line 7 21 L HB and L LB Lines 7 22 A13 A14 Fractional N Check 7 22 Fractional N Check with Analog Bus 7 22 A14 VCO Range Check with Oscilloscope 7 23 A14 VCO Ex...

Страница 175: ...Troubleshooting Source Problems with the Analog Bus 7 34 Phase Lock Diagnostic Tools 7 34 Phase Lock Error Messages 7 34 Phase Lock Diagnostic Routines 7 34 Index Contents 2 DRAFT 3 21 106 15 13 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 176: ...mplementary L HB and L LB Signals Preset 7 22 7 17 10 MHz HI OUT Waveform from A14J1 7 23 7 18 25 MHz HI OUT Waveform from A14J1 7 24 7 19 60 MHz HI OUT Waveform from A14J1 7 24 7 20 LO OUT Waveform at A14J2 7 25 7 21 A14 Generated Digital Control Signals 7 27 7 22 H MB Signal at A14P1 5 Preset and 16 MHz to 31 MHz Sweep 7 27 7 23 Pulse Generator Output 7 28 7 24 High Quality Comb Tooth at 3 GHz 7...

Страница 177: ...Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 178: ... the Power troubleshooting checks Phase lock error Perform the Phase Lock Error troubleshooting checks The source group assemblies consist of the following A3 source A4 sampler mixer A7 pulse generator A11 phase lock A12 reference A13 fractional N analog A14 fractional N digital DRAFT 3 21 106 15 13 Source Troubleshooting 7 1 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www ...

Страница 179: ... necessary Refer to Chapter 14 Assembly Replacement and Post Repair Procedures 4 Perform the necessary adjustments Refer to Chapter 3 Adjustments and Correction Constants 5 Perform the necessary performance tests Refer to Chapter 2 System Veri cation and Performance Tests Before You Start Troubleshooting Make sure all of the assemblies are rmly seated Also make sure that input R has a signal of at...

Страница 180: ... source 2 RF Output Power Correction Constants Test 47 Follow the instructions for this procedure given in Chapter 3 Adjustments and Correction Constants The procedure is complete when DONE appears on the analyzer display Use a power meter to verify that power levels are now correct If power levels are not correct or if the analyzer fails the routine proceed with step 3 3 Sampler Magnitude and Pha...

Страница 181: ...r as a result of incorrect pretune correction constants To check this possibility perform the pretune correction constants routine The four phase lock error messages listed below are described in the Source Group Troubleshooting Appendix at the end of this chapter NO IF FOUND CHECK R INPUT LEVEL NO PHASE LOCK CHECK R INPUT LEVEL PHASE LOCK CAL FAILED PHASE LOCK LOST 1 Connect the power splitter RF...

Страница 182: ...NNNNNNNNNNNNNN TESTS 4455 4215 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN EXECUTE TEST to generate default pretune correction constants Press 4PRESET5 4SYSTEM5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SERVICE MENU NNNNNNNNNNNNNNNNN TESTS 4485 4215 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN EXECUTE TEST NNNNNNNNNNN YES to generate new pretune correction constants Note Always press 4PRESET5 before and after p...

Страница 183: ...her the A channel sampler A5 or the B channel sampler A6 depending on which one you selected in step 1 Refer to Figure 7 3 Figure SAMMIX7 here Figure 7 3 Sampler Mixer to Phase Lock Cable Connection Diagram 3 If you connected W8 to A5 press 4MEAS5 NNNNNNNNNNN A R A6 press 4MEAS5 NNNNNNNNNNN B R 4 Ignore the displayed trace but check for phase lock error messages If the phase lock problem persists ...

Страница 184: ...NNNNNNNNNNNNNNNNNNNNNNNN SERVICE MODES NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SRC ADJUST MENU NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SRC TUNE ON NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SRC TUNE FREQ to activate the source tune SRC TUNE service mode 3 Use the front panel knob or front panel keys to set the pretune frequency to 300 kHz 30 MHz and 40 MHz Verify the signal frequency on the osc...

Страница 185: ...utput Compared to Open Loop Output in SRC Tune Mode 7 Press 4MENU5 NNNNNNNNNNNNNNNNN POWER to vary the power and check for corresponding level changes on the test instrument A power change of 20 dB will change the voltage observed on the oscilloscope by a factor of ten 8 Note the results of the frequency and power changes If the frequency and power output changes are correct skip ahead to A12 Refe...

Страница 186: ...ON 4MEAS5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN S PARAMETERS NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANALOG IN Aux Input 4FORMAT5 NNNNNNNNNNNNNN MORE NNNNNNNNNNNNNN REAL 435 4215 b Press 4MARKER5 425 4G n5 The marker should read approximately 434 mU c Press 4MARKER5 445 4G n5 The marker should read approximately 646 mU DRAFT 3 21 106 15 13 Source Troubleshooting 7 9 Artisan Sc...

Страница 187: ...NN ANALOG IN Aux Input NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN COUNTER ANALOG BUS 2 Then press 4165 4215 4FORMAT5 NNNNNNNNNNNNNN MORE NNNNNNNNNNNNNN REAL 4SCALE REF5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNN AUTOSCALE This keystroke sequence lets you check the pretune DAC and the A11 output to the YO coil drive by monitoring the 1 V GHz signal at analog bus node 16 3 Compare the waveform t...

Страница 188: ...are not correct replace the faulty A11 assembly If the output signals from the A11 assembly are correct replace the faulty A3 source assembly If neither the A11 nor the A3 assembly is faulty continue with the next check Figure VDIFF7 here Figure 7 7 YO0 and YO Coil Drive Voltage Differences with SOURCE PLL OFF A12 Reference Check The signals are evaluated with pass fail checks The most e cient way...

Страница 189: ... MHz 2 000 MHz 50 MHz 0 100 MHz 0 996 MHz 1 000 MHz NOTE The counter should indicate the frequencies listed in this table to within 60 1 Accuracy may vary with gate time and signal strength 5 Press 4245 4215 to count the frequency of the 2nd LO signal 6 Press 4MENU5 NNNNNNNNNNNNNNNNNNNNNNN CW FREQ 45005 4k m5 Verify that the counter reading matches the corresponding 2nd LO value for the CW frequen...

Страница 190: ...s observe the signal s with an oscilloscope Table 7 3 identi es a convenient test point and a plot for the ve signals listed Table 7 3 A12 Reference Frequencies Mnemonic Signal Description Location See Figure Analyzer Setting FN100kHzREF 100 kHz Reference A13TP5 Figure 7 8 any REF Phase Lock Reference A11TP1 Pin 9 Figure 7 9 16 MHz CW REF Phase Lock Reference A11TP1 Pin 9 Figure 7 10 5 MHz CW FN L...

Страница 191: ...ve to increase the oscilloscope intensity to see these pulses See Figure 7 8 Figure SHARP7 here Figure 7 8 Sharp 100 kHz Pulses at A13TP5 any frequency 7 14 Source Troubleshooting DRAFT 3 21 106 15 13 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 192: ...the frequencies noted in Figure 7 9 and Figure 7 10 High Band REF Signal In high band the REF signal is a constant 1 MHz square wave as indicated by Figure 7 9 Figure HBSIG7 here Figure 7 9 High Band REF Signal 16 MHz CW DRAFT 3 21 106 15 13 Source Troubleshooting 7 15 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 193: ...signal Figure REFSIG7 here Figure 7 10 REF Signal at A11TP9 5 MHz CW If REF looks good skip ahead to 4 MHz Reference Signal If REF is bad in low band continue with FN LO at A12 Check 7 16 Source Troubleshooting DRAFT 3 21 106 15 13 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 194: ...l N service mode 2 Use the front panel knob to vary the frequency from 30 to 60 MHz The signal should appear similar to Figure 7 11 The display will indicate 10 to 60 8 MHz a If the FN LO signal is good the A12 assembly is faulty b If the FN LO signal is not good skip ahead to A13 A14 Fractional N Check Figure LOWAVE7 here Figure 7 11 Typical FN LO Waveform at A12J1 DRAFT 3 21 106 15 13 Source Tro...

Страница 195: ...roblems because the CPU uses receiver data to control the source At A12TP9 it should appear similar to Figure 7 12 Figure REFS7 here Figure 7 12 4 MHz Reference Signal at A12TP9 Preset 7 18 Source Troubleshooting DRAFT 3 21 106 15 13 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 196: ...s in High Band In high band the 2nd LO is 996 kHz As indicated by Figure 7 13 the 2nd LO actually consists of two signals 90 degrees out of phase Figure PHASEO7 here Figure 7 13 90 Degree Phase Offset of High Band 2nd LO Signals 16 MHz CW DRAFT 3 21 106 15 13 Source Troubleshooting 7 19 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 197: ...ure 7 14 In Phase Low Band 2nd LO Signals 14 MHz CW If any of the signals of Table 7 2 are incorrect the probability is 90 that the A12 assembly is faulty Either consider the A12 assembly faulty or perform the A12 Digital Control Signals Check described below 7 20 Source Troubleshooting DRAFT 3 21 106 15 13 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific ...

Страница 198: ...ure Analyzer Setting L ENREF L Reference Enable A12P2 16 Figure 7 15 Preset L HB L High Band A12P2 32 Figure 7 16 Preset L LB L Low Band A12P1 23 Figure 7 16 Preset L ENREF Line This is a TTL signal To observe it trigger on the negative edge In preset state the signal should show activity similar to Figure 7 15 Figure ENREF7 here Figure 7 15 L ENREF Line at A12P2 16 Preset DRAFT 3 21 106 15 13 Sou...

Страница 199: ...NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANALOG IN Aux Input NNNNNNNNNNNNNNNNNNNN FRAC N to switch on the analog bus and the fractional N counter 2 Then press 4MENU5 4CW FREQ5 to set the analyzer to CW mode 3 Set the instrument as indicated in Table 7 5 and see whether the VCO generates the frequencies listed Table 7 5 VCO Range Check Frequencies Instrument Setting Counter Readin...

Страница 200: ...ON to activate the FRACN TUNE service mode See Chapter 10 Service Key Menus and Error Messages for more information on the FRACN TUNE mode 3 Vary the fractional N VCO frequency with the front panel knob and check the signal with the oscilloscope The waveform should resemble Figure 7 17 Figure 7 18 and Figure 7 19 If the fractional N output signals are correct continue source troubleshooting by ski...

Страница 201: ...cedure substitutes a power supply for the A13 assembly to check the frequency range of the A14 VCO 1 Switch o the analyzer and remove the A13 assembly 2 Put the A14 assembly on an extender board and switch on the instrument 3 Prepare to monitor the VCO frequency either by Activating the analog bus and setting the internal counter to the FRACN node or 7 24 Source Troubleshooting DRAFT 3 21 106 15 1...

Страница 202: ...ernal power supply from A8TP8 to A14TP14 and then jumping the 05 2 V supply from A8TP10 to A14TP14 5 Con rm that the VCO frequency changes from approximately 30 MHz or less to 60 MHz or more 6 If this procedure produces unexpected results the A14 assembly is faulty 7 If this procedure produces the expected results continue with the A14 Divide by N Circuit Check DRAFT 3 21 106 15 13 Source Troubles...

Страница 203: ...e A13 assembly A14 to A13 Digital Control Signals Check The A14 assembly generates a TTL cycle start CST signal every 10 microseconds If the VCO is oscillating and the CST signal is not detectable at A14TP3 the A14 assembly is non functional Use the CST signal as an external trigger for the oscilloscope and monitor the signals in Table 7 6 Since these TTL signals are generated by A14 to control A1...

Страница 204: ...inactivity of this signal during preset condition The lower trace shows its status during a 16 MHz to 31 MHz sweep with inactivity during retrace only Figure MBS7 here Figure 7 22 H MB Signal at A14P1 5 Preset and 16 MHz to 31 MHz Sweep DRAFT 3 21 106 15 13 Source Troubleshooting 7 27 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 205: ...e signal The A7 comb should resemble the spectral display in Figure 7 23 Figure PGO7 here Figure 7 23 Pulse Generator Output 2 If the analyzer malfunction relates to a particular frequency or range look more closely at the comb tooth there Adjust the spectrum analyzer span and bandwidth as required Even at 3 GHz the comb should look as clean as Figure 7 24 For Option 006 instruments at 6 GHz the c...

Страница 206: ... to A7 cable still attached to the A14 assembly Narrow the span and bandwidth to observe the signal closely 5 If the HI OUT signal is as clean as Figure 7 25 the A7 assembly is faulty Otherwise check the A14 to A7 cable or recheck the A13 A14 fractional N as described ahead Rechecking the A13 A14 Fractional N Some phase lock problems may result from phase noise problems in the fractional N loop To...

Страница 207: ...he analyzer and tune the source to 50 MHz Press NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SRC TUNE ON NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SRC TUNE FREQ 4505 4M 5 4 Set the SRC TUNE frequency to those listed in Table 7 7 and observe the 1st IF waveforms They should appear similar to Figure 7 26 If the signals observed are proper continue with A11 Phase Lock Check If the signals observed are questio...

Страница 208: ...already Nevertheless you may elect to use the phase lock diagnostic routines or check the relevant signals at the assembly itself for con rmation Note If external source mode is the only operating mode with phase lock problems replace the A11 phase lock assembly DRAFT 3 21 106 15 13 Source Troubleshooting 7 31 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientif...

Страница 209: ...xamination To con rm that the A11 assembly is receiving the signals required for its proper operation perform the following steps 1 Place the A11 assembly on the large extender board 2 Switch on the analyzer and press 4PRESET5 3 Check for the signals listed in Table 7 8 Table 7 8 A11 Input Signals Mnemonic I O Access See Figure Notes FM COIL 0 O A11P1 3 33 Figure 7 27 Aids YO COIL in setting YIG P...

Страница 210: ...ll block diagram in Chapter 4 Start Troubleshooting Here as an aid to trouble shooting the problem to its source 5 If any of the output signals are not proper the A11 assembly is faulty DRAFT 3 21 106 15 13 Source Troubleshooting 7 33 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 211: ...essful a source or receiver failure Perform the Source Pretune Correction Constants routine as outlined in Chapter 3 Adjustments and Correction Constants If the analyzer fails that routine perform the A4 Sampler Mixer Check PHASE LOCK LOST means that phase lock was lost or interrupted before the band sweep ended a source problem Refer to Phase Lock Diagnostic Routines next to access the phase lock...

Страница 212: ...r to Source Theory Overview in Chapter 12 Theory of Operation for additional information regarding band related problems Then use the procedures in this chapter to check source functions at speci c frequencies DRAFT 3 21 106 15 13 Source Troubleshooting 7 35 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 213: ...Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 214: ...ck the 4 MHz REF Signal 8 5 Check A10 by Substitution or Signal Examination 8 5 Troubleshooting When One or More Inputs Look Good 8 8 Check the 4 kHz Signal 8 8 Check the Trace with the Sampler Correction Constants O 8 9 Check 1st LO Signal at Sampler Mixer 8 10 Check 2nd LO Signal at Sampler Mixer 8 10 Index DRAFT 3 21 106 15 13 Contents 1 Artisan Scientific Quality Instrumentation Guaranteed 888...

Страница 215: ... Observed Using L INTCOP as Trigger 8 7 8 6 2nd IF 4 kHz Waveform 8 8 8 7 Typical Trace with Sampler Correction On and O 8 9 Tables 8 1 Signals Required for A10 Assembly Operation 8 6 8 2 2nd IF 4 kHz Signal Locations 8 8 8 3 2nd LO Locations 8 10 Contents 2 DRAFT 3 21 106 15 13 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 216: ...e procedures in the order given unless instructed otherwise The receiver group assemblies consist of the following A4 5 6 sampler mixer assemblies A10 digital IF assembly DRAFT 3 21 106 15 13 Receiver Troubleshooting 8 1 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 217: ...re moved The following three error messages share the same description CAUTION OVERLOAD ON INPUT A POWER REDUCED CAUTION OVERLOAD ON INPUT B POWER REDUCED CAUTION OVERLOAD ON INPUT R POWER REDUCED If any of the above error messages appear you have exceeded approximately 3 dBm at one of the input ports The RF output power is automatically turned o The annotation P appears in the left margin of the ...

Страница 218: ...e A and B input traces Press 4PRESET5 4MEAS5 NNNNN R 4SCALE REF5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN AUTO SCALE 3 Check the atness of the input A trace by comparing it with the trace in Figure 8 2 Press 4MEAS5 NNNNN A 4 Check the atness of the input B trace by comparing it with the trace in Figure 8 2 Move the A input cable to the B input and press NNNNN B If none of the input traces resembles Figure...

Страница 219: ...obably faulty This can be con rmed by checking the 4 MHz signal and substituting the A10 assembly or checking the signals listed in Table 8 1 Check 2nd LO Check the 2nd LO signal Refer to the A12 Reference Check section of Chapter 7 Source Troubleshooting for analog bus and oscilloscope checks of the 2nd LO and waveform illustrations If the analyzer passes the checks continue to Check the 4 MHz RE...

Страница 220: ...k the A10 assembly by one of the following methods Substitute another A10 assembly or Check the signal control lines required for its operation The pins and signal sources of those lines are identi ed in Table 8 1 It is possible that the A9 assembly may not be providing the necessary signals These signal checks allow you to determine which assembly is faulty Some of the waveforms are illustrated b...

Страница 221: ...IF data 7 MSB P2 60 A9P2 60 L DIFEN0 Digital IF enable 0 P2 34 A9P2 34 L DIFEN1 Digital IF enable 1 P2 5 A9P2 5 L DIFEN2 Digital IF enable 2 P2 35 A9P2 35 DIFCC Digital IF conversion comp P2 33 A10P2 33 Figure 8 4 DIFCLK Digital IF serial clock P2 4 A10P2 4 Figure 8 4 DIF DATA Digital IF serial data out P2 3 A10P2 3 Figure 8 4 L ENDIF L enable digital IF P2 17 A9P2 17 Figure 8 5 L INTCOP L interru...

Страница 222: ... Using L INTCOP as Trigger Figure CNTRL8 here Figure 8 5 Digital Control Lines Observed Using L INTCOP as Trigger DRAFT 3 21 106 15 13 Receiver Troubleshooting 8 7 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 223: ...t the A10 assembly The input and output access pins are listed in Table 8 2 The signal should resemble the waveform of Figure 8 6 If the signal is good continue with Check the Trace with the Sampler Correction Constants O If the signal is bad skip ahead to Check 1st LO Signal at Sampler Mixer Table 8 2 2nd IF 4 kHz Signal Locations Mnemonic Description A10 Location Signal Source IFR 4 kHz A10P1 1 ...

Страница 224: ...orsened to resemble Figure 8 7b 5 Press 4SAMPLER COR ON5 The trace should improve and resemble Figure 8 7a again Note When the correction constants are switched o an absolute o set and bandswitch points may be evident If the trace shows no improvement when the sampler correction constants are toggled from o to on perform the Sampler Magnitude and Phase Correction Constants Test 53 adjustment descr...

Страница 225: ...fer to the A12 Reference Check in Chapter 7 Source Troubleshooting for analog bus and oscilloscope checks of the 2nd LO and waveform illustrations Table 8 3 identi es the signal location at the samplers and the A12 assembly Table 8 3 2nd LO Locations Mnemonic Description Sampler Location Signal Source 2nd LO 1 2nd LO 0 degrees A4 5 6 P1 11 A12P1 2 32 2nd LO 2 2nd LO 090 degrees A4 5 6 P1 4 A12P1 4...

Страница 226: ...epeatability 9 3 Inspect the Error Terms 9 3 Cable Test 9 4 Verify Shorts and Opens 9 5 Test Set Troubleshooting 9 6 Troubleshooting Power Problems in S Parameter Test Sets 9 6 Troubleshooting Control Problems in S Parameter Test Sets 9 8 Index DRAFT 3 21 106 15 13 Contents 1 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 227: ...sitions on the A9 CPU 9 7 9 4 Analyzer Rear Panel Test Set Interconnect Connector Pins 9 7 Tables 9 1 Components Related to Speci c Error Terms 9 4 9 2 Attenuation Voltage Matrix 9 8 9 3 Measurement Voltage Matrix 9 9 Contents 2 DRAFT 3 21 106 15 13 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 228: ...ning of the analyzer or prohibit the use of a feature This chapter addresses the rst category of failures which are usually caused by the following operator errors faulty calibration devices or connectors bad cables or adapters improper calibration techniques RF cabling problems within the test set These failures are checked using the following procedures Inspect the Accessories Inspect the Error ...

Страница 229: ...efer to Chapter 13 Replaceable Parts 3 Replace the faulty assembly and determine what adjustments are necessary Refer to Chapter 14 Assembly Replacement and Post Repair Procedures 4 Perform the necessary adjustments Refer to Chapter 3 Adjustments and Correction Constants 5 Perform the necessary performance tests Refer to Chapter 2 System Veri cation and Performance Tests 9 2 Accessories Troublesho...

Страница 230: ...Press 4PRESET5 4MEAS5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN Refl REV S22 B R and then NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN Refl FWD S11 A R Listen for the sound of the switch No sound con rm that the test set has a solid state noiseless switch then refer to Test Set Troubleshooting to locate the problem Audible sound continue with this section unless a ...

Страница 231: ... if the problem had shifted with the load replace the load If the second port looks good as if the load had not been the problem troubleshoot the rst port Shorts and opens If the source match and re ection tracking terms look good the shorts and the opens are good If these terms look bad while the rest of the terms look good proceed to Verify Shorts and Opens Cable Test The load match error term i...

Страница 232: ...REF5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN ELECTRICAL DELAY and turn the front panel knob to enter enough electrical delay so that the trace appears as a dot at the left side of the circle see Figure 9 2a left Replace the good short with the questionable short at port 1 The trace of the questionable short should appear very similar to the known good short 3 Connect the good open to po...

Страница 233: ...S Parameter Test Sets power problems can a ect control Troubleshooting Power Problems in S Parameter Test Sets HP 8753D Option 011 with HP 85047A or 85046A B Do not connect the test set to the analyzer to perform these checks 1 Move the A9 CC Jumper to the ALTER position Remove the power line cord from the analyzer Set the analyzer on its side Remove the two corner bumpers from the bottom of the i...

Страница 234: ...RESS 413144125 4215 3 POKE the address for the appropriate test set HP 85047A Press NNNNNNNNNNNNNN POKE 455 4215 4PRESET5 HP 85046A B Press NNNNNNNNNNNNNN POKE 415 4215 4PRESET5 4 Measure the DC voltage at pin 14 see Figure 9 4 of the analyzer rear panel test set interconnect connector Figure INTER9 here Figure 9 4 Analyzer Rear Panel Test Set Interconnect Connector Pins DRAFT 3 21 106 15 13 Acces...

Страница 235: ...with these procedures be sure the A9 CC jumper is set to alter and the value for the appropriate test set has been POKEd Attenuation Control Voltages Voltage levels on the pins identi ed in Table 9 2 control test set attenuation Press 4MENU5 NNNNNNNNNNNNNNNNN POWER NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN ATTENUATOR PORT 1 and enter the attenuation values listed below After each entry...

Страница 236: ...zer Wrong voltages replace the A16 rear panel assembly of the analyzer Remote Trigger Monitor pin 24 with an oscilloscope Press 4PRESET5 5 V should be present during PRESET After PRESET a negative going pulse to zero volts about 200 nanoseconds long should be visible The pulse should be present at the beginning of each sweep To increase pulse visibility decrease number of points to 3 and decrease ...

Страница 237: ...Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 238: ...10 13 Service Modes Menu 10 13 Service Modes More Menu 10 15 Analog Bus 10 16 Description of the Analog Bus 10 16 The Main ADC 10 16 The Frequency Counter 10 17 Analog In Menu 10 17 Analog Bus Nodes 10 19 A3 Source 10 19 A10 Digital IF 10 26 A11 Phase Lock 10 27 A12 Reference 10 31 A14 Fractional N Digital 10 35 PEEK POKE Menu 10 37 Firmware Revision Softkey 10 39 HP IB Service Mnemonic De nitions...

Страница 239: ... 10 10 Analog Bus Node 15 10 28 10 11 Analog Bus Node 16 10 29 10 12 Counter Readout Location 10 30 10 13 Analog Bus Node 18 10 31 10 14 Analog Bus Node 23 10 33 10 15 Analog Bus Node 29 10 36 10 16 Analog Bus Node 30 10 37 10 17 Location of Firmware Revision Information on Display 10 39 Tables 10 1 Test Status Terms 10 3 10 2 Descriptions of Jumper Positions 10 6 Contents 2 DRAFT 3 21 106 15 14 A...

Страница 240: ...plicable the HP IB mnemonic is written in parentheses following the key See HP IB Service Mnemonic De nitions at the end of this section Error Messages The displayed messages that pertain to service functions are also listed in this chapter to help you Understand the message Solve the problem DRAFT 3 21 106 15 14 Service Key Menus and Error Messages 10 1 Artisan Scientific Quality Instrumentation ...

Страница 241: ...he menus HP IB COMMANDS When applicable follow the keystroke in parentheses Tests Menu To access this menu press 4SYSTEM5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SERVICE MENU NNNNNNNNNNNNNNNNN TESTS NNNNNNNNNNNNNNNNN TESTS TEST D Accesses a menu that allows you to select or execute the service tests The default is set to internal test 1 Note Descriptions of tests in each of the categories are given...

Страница 242: ...ice NNNNNNNNNNNNNNNNNNNN SELECT TESR6 Chooses the option indicated NNNNNNNNNNNNNNNNN ABORT TESR8 Terminates the test and returns to the tests menu NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN INTERNAL TESTS Evaluates the analyzer s internal operation These tests are completely internal and do not require external connections or user interaction NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN EXTERNAL...

Страница 243: ...NNNNNNNNNNNNNNNNNNNNNNNNN LIMITS NORM SPCL Selects either NORMal or SPeCiaL tighter limits for the Operator s Check The SPCL limits are useful for a guard band NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN POWER LOSS on OFF Activates power loss function NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN LOSS SENSR LISTS Accesses the power loss sensor lists menu NNNNNNNNNNNNNNNNNNNNNNNNNNNN...

Страница 244: ...iously entered in the current data table NNNNNNNNNNN ADD SADD Adds new frequency cal factor and loss values to the current data table up to a maximum of 12 segments frequency points PTS NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN CLEAR LIST CLEL Deletes the entire current data table or list when NNNNNNNNNNN YES is pressed Press NNNNNNNN NO to avoid deletion NNNNNNNNNNNNNN DONE EDITDONE Returns to the previou...

Страница 245: ...ore information 3 CMOS RAM Veri es the A9 CPU CMOS long term memory with a non destructive write read pattern A destructive version that writes over stored data is shown in Table 10 2 4 Main DRAM Veri es the A9 CPU main memory DRAM with a non destructive write read test pattern A destructive version is shown in Table 10 2 These tests internal tests 2 through 4 are normally run at preset and power ...

Страница 246: ...om the A10 digital IF ADC 9 DIF Control Tests the ability of the A9 CPU main processor to write read to the control latches on the A10 digital IF 10 DIF Counter Tests the ability of the A9 CPU main processor to write read to the triple divider on the A10 CPU It tests the A9 CPU data bu ers and A10 digital IF the 4 MHz clock from the A12 reference 11 DSP Control Tests the ability of the A9 CPU digi...

Страница 247: ...ns only when selected 19 ABUS Test Tests analog bus accuracy by measuring several analog bus reference voltages all nodes from the A10 digital IF This runs only when selected 20 FN Count Uses the internal counter to count the A14 fractional N VCO frequency 120 to 240 MHz and the divided fractional N frequency 100 kHz It requires the 100 kHz signal from A12 and the counter gate signal from A10 to p...

Страница 248: ...sks are used in the procedures located in the Adjustments chapter of this manual except as noted 44 Source Def Writes default correction constants for rudimentary source power accuracy Use this test before running test 47 below 45 Pretune Def Writes default correction constants for rudimentary phase lock pretuning accuracy Use this test before running test 48 below 46 ABUS Cor Measures three xed v...

Страница 249: ...n o if the test passes The display will be blank press 4PRESET5 to exit the test If any of the six LEDs remain on the test has failed 59 Disp cpu com Checks to con rm that the CPU can communicate with the A19 GSP board The CPU writes all zeros all ones and then a walking 1 pattern to the GSP and reads them back If the test fails the CPU repeats the walking 1 pattern until 4PRESET5 is pressed 60 DR...

Страница 250: ...ing or stuck data bits 71 Test Pat 6 Displays a 3 step gray scale pattern for adjusting the background level or 0 step so that the rst bar is not visible and the second bar is just barely visible This pattern consists of the rst three gray scale bars of the 16 step gray scale 72 Test Pat 7 Displays a convergence pattern for measuring the accuracy of the color convergence It is mainly for use by th...

Страница 251: ...cter sizes 125 characters of each size are displayed Characters 0 and 3 cannot be drawn and several others are really control characters such as carriage return and line feed 80 Test Pat 15 Displays a bandwidth pattern for verifying the bandwidth of the display It consists of multiple alternating white and black vertical stripes Each stripe should be clearly visible A limited bandwidth would smear...

Страница 252: ...ubleshooting NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN FRACN TUNE on OFF SM1 Tests the A13 and A14 fractional N circuits It allows you to directly control and monitor the output frequency of the fractional N synthesizer 10 MHz to 60 MHz Set the instrument to CW sweep mode and then set FRACN TUNE ON Change frequencies with the front panel keys or knob The output of the A14 assembly can ...

Страница 253: ...on NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN PLL AUTO ON off SM4 Automatically attempts to determine new pretune values when the instrument encounters phase lock problems e g harmonic skip With NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN PLL AUTO OFF the frequencies and voltages are not changing as they are when they are attempting to determine new pretune values so troubleshooting the phase lock...

Страница 254: ...A10 IF attenuators for checking the A10 IF gain ampli er circuits Small input signals will appear noisy and raise the apparent noise oor of the instrument NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SPUR TEST on OFF SM7 For factory use only NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN STORE EEPR on OFF Allows you to store the correction constants that reside in non volatile memory ...

Страница 255: ... Troubleshooting chapter to see where the nodes are located in the instrument The analog bus consists of a source section and a receiver section The source can be the following any one of the 31 nodes described in Analog Bus Nodes the A14 fractional N VCO the A14 fractional N VCO divided down to 100 kHz The receiver portion can be the following the main ADC the frequency counter When analog bus tr...

Страница 256: ...above 1 MHz About 0 750 MHz is a typical counter reading with no AC signal present Anything occurring during bandswitches is not visible Fast moving waveforms may be sensitive to sweep time The analog bus input impedance is about 50K ohms Waveforms up to approximately 200 Hz can be reproduced Analog In Menu Select this menu to monitor voltage and frequency nodes using the analog bus and internal c...

Страница 257: ...n with one of the next three keys Note Using the counter slows the sweep The counter bandwidth is 16 MHz unless otherwise noted for a speci c node Note OUTPCNTR is the HP IB command to output the counter s frequency data NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANALOG BUS switches the counter to monitor the analog bus NNNNNNNNNNNNNNNNNNNN FRAC N switches the counter to monitor the A14 fractional N VCO fre...

Страница 258: ...ress 4PRESET5 4SYSTEM5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SERVICE MENU NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANALOG BUS ON 4MEAS5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANALOG IN 4FORMAT5 NNNNNNNNNNNNNN MORE NNNNNNNNNNNNNN REAL 4MENU5 NNNNNNNNNNNNNNNNNNNNNNN CW FREQ 435 4G n5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SWEEP TYPE MENU NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN POWER SWEEP 4START5 4 15...

Страница 259: ...RF power from the cavity oscillator into the level modulator Flat line segments indicate ALC saturation and should not occur between 015 dBm and 10 dBm A at line at about 0 V indicates the cavity oscillator is not outputting any power Figure NODE1 here Figure 10 4 Analog Bus Node 1 10 20 Service Key Menus and Error Messages DRAFT 3 21 106 15 14 Artisan Scientific Quality Instrumentation Guaranteed...

Страница 260: ... the level modulator Flat line segments indicate ALC saturation and should not occur between 015 dBm and 10 dBm In Figure 10 5 the at part is in the last right side division A at line at about 0 V indicates the cavity oscillator is not outputting any power Figure NODE2 here Figure 10 5 Analog Bus Node 2 DRAFT 3 21 106 15 14 Service Key Menus and Error Messages 10 21 Artisan Scientific Quality Inst...

Страница 261: ...NNNNNNNNNNNNNNNNN AUTO SCALE Node 3 detects the power out of the mixer and into the ampli er Typically the trace is at at 0 V up to about 10 dBm the response limit of the analog bus detector Figure NODE3 here Figure 10 6 Analog Bus Node 3 10 22 Service Key Menus and Error Messages DRAFT 3 21 106 15 14 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 262: ...cts power that is coupled and detected from the RF OUT arm to the ALC loop Note that the voltage exponentially follows the power level inversely Flat segments indicate ALC saturation and should not occur between 015 dBm and 10 dBm Figure NODE4 here Figure 10 7 Analog Bus Node 4 DRAFT 3 21 106 15 14 Service Key Menus and Error Messages 10 23 Artisan Scientific Quality Instrumentation Guaranteed 888...

Страница 263: ...step A3 above to set up a power sweep on the analog bus Then press 4MEAS5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANALOG IN 465 4x15 4SCALE REF5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN AUTO SCALE Node 6 displays the output of the summing circuit in the ALC loop Absolute voltage level variations are normal Flat segments indicate ALC saturation and should not occur between 015 dBm and 10 dBm Figure NODE6 here Figure...

Страница 264: ...hould be a linear ramp Absolute voltage level variations are normal Flat segments indicate ALC saturation and should not occur between 015 dBm and 10 dBm The proper waveform at node 7 indicates that the circuits in the A3 source ALC loop are normal and the source is leveled Figure NODE7 here Figure 10 9 Analog Bus Node 7 Node 8 A3 Gnd ground DRAFT 3 21 106 15 14 Service Key Menus and Error Message...

Страница 265: ...ux Input rear panel input Perform step A10 above and then press 4MEAS5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANALOG IN 415 415 4x15 This selects the rear panel AUX INPUT to drive the analog bus for voltage and frequency measurements It can be used to look at test points within the instrument using the analyzer s display as an oscilloscope Connect the test point of interest to the rear panel AUX INPUT BNC ...

Страница 266: ...NNN REAL Node 13 VCO Tune 2 not used Node 14 Vbb Ref ECL reference voltage level Perform step A11 above and then press 4MEAS5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANALOG IN 4145 4x15 4SCALE REF5 4 35 4x15 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN REFERENCE VALUE 4 1 295 4x15 The trace should be within 0 3 V one division of the reference value Vbb Ref is used to compensate for ECL voltage drift DRAF...

Страница 267: ...This node displays the source pretune signal and should look like a stair stepped ramp Each step corresponds to the start of a band Disregard the error message CAUTION POSSIBLE FALSE LOCK Figure NODE15 here Figure 10 10 Analog Bus Node 15 10 28 Service Key Menus and Error Messages DRAFT 3 21 106 15 14 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 268: ...wn in Figure 10 11 If this waveform is correct you can be con dent that the A11 phase lock assembly the A3 source assembly the A13 A14 fractional N assemblies and the A7 pulse generator are working correctly and the instrument is phase locked If you see anything else refer to the Source Troubleshooting chapter Figure NODE16 here Figure 10 11 Analog Bus Node 16 DRAFT 3 21 106 15 14 Service Key Menu...

Страница 269: ...e below Entered Frequency Counter Reading 0 3 to 15 999 MHz same as entered 16 MHz to 3 GHz 1 MHz This node displays the IF frequency see node17 as it enters the A11 phase lock assembly via the A7 ALC assembly This signal comes from the R sampler output and is used to phase lock the source Figure NODE17 here Figure 10 12 Counter Readout Location 10 30 Service Key Menus and Error Messages DRAFT 3 2...

Страница 270: ...This node detects IF after the 16 MHz lter limiter The lter is used during pretune and acquire but not in band 1 Normal state is a at line at about 01 7 V Node 20 IF Det 1 IF after 30 MHz lter Perform step A11 above and then press 4MEAS5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANALOG IN 4205 4x15 4SCALE REF5 415 4x15 The trace should be a at line across the entire frequency band at least 0 5 V greater than ...

Страница 271: ...NNNNNNNNNNNNNNNNNNNNNNN COUNTER ANALOG BUS This node counts the A12 100 kHz reference signal that is used on A13 the fractional N analog assembly as a reference frequency for the phase detector Node 22 A12 Gnd 1 ground 10 32 Service Key Menus and Error Messages DRAFT 3 21 106 15 14 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 272: ...EF5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN AUTO SCALE The trace should show a voltage step as shown in Figure 10 14 If not refer to the High Low Band Transition Adjustment Figure NODE23 here Figure 10 14 Analog Bus Node 23 DRAFT 3 21 106 15 14 Service Key Menus and Error Messages 10 33 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 273: ...16 to 3 000 MHz 996 kHz Node 25 PL Ref phase lock reference Perform step A12 above and then press 4MEAS5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANALOG IN 4255 4x15 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN COUNTER ANALOG BUS 4MENU5 NNNNNNNNNNNNNNNNNNNNNNN CW FREQ This node counts the reference signal used by the phase comparator circuit on the A11 phase lock assembly As you vary the frequ...

Страница 274: ... MHz You should see a at line at some voltage level the actual voltage level varies from instrument to instrument Anything other than a at line indicates that the VCXO is tuning to di erent frequencies Refer to the Frequency Accuracy adjustment procedure Node 28 A12 Gnd 2 Ground reference A14 Fractional N Digital To observe the A14 analog bus nodes perform step A14 below Then follow the node speci...

Страница 275: ...rrectly and the VCO is phase locked the trace should look like Figure 10 15 Any other waveform indicates that the FN VCO is not phase locked The vertical lines in the trace indicate the band crossings The counter can also be enabled to count the VCO frequency in CW mode Figure NODE29 here Figure 10 15 Analog Bus Node 29 10 36 Service Key Menus and Error Messages DRAFT 3 21 106 15 14 Artisan Scient...

Страница 276: ...nu press 4SYSTEM5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SERVICE MENU NNNNNNNNNNNNNNNNNNNNNNNNNNNNN PEEK POKE NNNNNNNNNNNNNNNNNNNNNNNNNNNNN PEEK POKE Accesses di erent memory locations to view or change the contents The keys are described below Caution The PEEK POKE capability is intended for service use only NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN PEEK POKE ADDRESS PEEL D Accesses a...

Страница 277: ...mory where instrument states are stored To do this press NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN RESET MEMORY 4PRESET5 10 38 Service Key Menus and Error Messages DRAFT 3 21 106 15 14 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 278: ...date appear in the active entry area of the display as shown in Figure 10 17 below The installed options are also displayed Another way to display the rmware revision information is to cycle the line power Figure FIRM here Figure 10 17 Location of Firmware Revision Information on Display DRAFT 3 21 106 15 14 Service Key Menus and Error Messages 10 39 Artisan Scientific Quality Instrumentation Guar...

Страница 279: ...any tests require a response to the displayed prompts Since bit 1 of the Event Status Register B is set bit 1 service routine waiting any time a service routine prompts the user for an expected response you can send an appropriate response using one of the following techniques Read event status register B to reset the bit Enable bit 1 to interrupt ESNB D See Status Reporting in the Programming Gui...

Страница 280: ... the error queue by a service routine OUTPTESS Outputs the integer status of the test most recently executed Status codes are those listed under TST TST Executes the power on self test internal test 1 and outputs an integer test status Status codes are as follows 0 pass 1 fail 2 in progress 3 not available 4 not done 5 done DRAFT 3 21 106 15 14 Service Key Menus and Error Messages 10 41 Artisan Sc...

Страница 281: ...or Number 184 The battery protection of the non volatile CMOS memory is in danger of failing If this occurs all of the instrument state registers stored in CMOS memory will be lost Save these states to a disk and see Chapter 14 for battery replacement instructions Refer to Chapter 12 of the HP 8753D Network Analyzer User s Guide for more information about the CMOS memory CALIBRATION ABORTED Error ...

Страница 282: ...ment parameter Either change the measurement parameters or perform a new calibration DEADLOCK Error Number 111 A fatal rmware error occurred before instrument preset completed Call your local Hewlett Packard sales and service o ce DEVICE not on not connect wrong addrs Error Number 119 The device at the selected address cannot be accessed by the analyzer Verify that the device is switched on and ch...

Страница 283: ...mber 189 There may be a problem with your disk Try a new oppy disk If a new oppy disk does not eliminate the error suspect hardware problems EXCEEDED 7 STANDARDS PER CLASS Error Number 72 When modifying calibration kits you can de ne a maximum of seven standards for any class INITIALIZATION FAILED Error Number 47 The disk initialization failed probably because the disk is damaged INSUFFICIENT MEMO...

Страница 284: ...space NO FILE S FOUND ON DISK Error Number 45 No les of the type created by an analyzer store operation were found on the disk If you requested a speci c le title that le was not found on the disk NO IF FOUND CHECK R INPUT LEVEL Error Number 5 The rst IF signal was not detected during pretune Check the front panel R channel jumper If there is no visible problem with the jumper refer to Chapter 7 S...

Страница 285: ...mber 58 See error number 57 OVERLOAD ON INPUT B POWER REDUCED Error Number 59 See error number 57 OVERLOAD ON INPUT R POWER REDUCED Error Number 57 You have exceeded approximately 14 dBm at one of the test ports The RF output power is automatically reduced to 085 dBm The annotation P appears in the left margin of the display to indicate that the power trip function has been activated When this occ...

Страница 286: ...de Ignore it it will go away when you turn on frequency o set This message may also appear if you turn on frequency o set mode before you de ne the o set PHASE LOCK LOST Error Number 8 Phase lock was acquired but then lost Refer to Chapter 7 Source Troubleshooting POSSIBLE FALSE LOCK Error Number 6 Phase lock has been achieved but the source may be phase locked to the wrong harmonic of the synthes...

Страница 287: ...PPLY HOT Error Number 21 The temperature sensors on the A8 post regulator assembly have detected an over temperature condition The power supplies regulated on the post regulator have been shut down POWER SUPPLY SHUT DOWN Error Number 22 One or more supplies on the A8 post regulator assembly have been shut down due to an over current over voltage or under voltage condition PRINTER error Error Numbe...

Страница 288: ...nal register due to insu cient memory Increase the available memory by clearing one or more save recall registers and pressing 4PRESET5 or by storing les to a disk SELF TEST n FAILED Service Error Number 112 Internal test n has failed Several internal test routines are executed at instrument preset The analyzer reports the rst failure detected Refer to the internal tests and the self diagnose feat...

Страница 289: ...TED Error Number 113 You have prematurely stopped a service test SWEEP MODE CHANGED TO CW TIME SWEEP Error Number 187 If you select external source auto or manual instrument mode and you do not also select CW mode the analyzer is automatically switched to CW TROUBLE CHECK SETUP AND START OVER Service Error Number 115 Your equipment setup for the adjustment procedure in progress is not correct Chec...

Страница 290: ...omponents 11 8 A ected Measurements 11 8 Re ection Tracking ERF and ERR 11 9 Description 11 9 Signi cant System Components 11 9 A ected Measurements 11 9 Isolation Crosstalk EXF and EXR 11 10 Description 11 10 Signi cant System Components 11 10 A ected Measurements 11 10 Load Match ELF and ELR 11 11 Description 11 11 Signi cant System Components 11 11 A ected Measurements 11 11 Transmission Tracki...

Страница 291: ...nd With Cables 11 10 11 5 Typical EXF EXR with 10 Hz Bandwidth and with 3 kHz Bandwidth 11 11 11 6 Typical ELF ELR 11 12 11 7 Typical ETF ETR 11 13 Tables 11 1 Calibration Coe cient Terms and Tests 11 5 11 2 Uncorrected System Performance of HP 8753D 50 with 7 mm Test Ports 11 7 Contents 2 DRAFT 3 21 106 15 14 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientif...

Страница 292: ...aulty components in the system troubleshooting Preventive Maintenance A stable repeatable system should generate repeatable error terms over long time intervals for example six months If you make a hardcopy record print or plot of the error terms you can periodically compare current error terms with the record A sudden shift in error terms re ects a sudden shift in systematic errors and may indica...

Страница 293: ...rthwhile to perform the procedure twice using two distinct measurement calibrations to establish the degree of repeatability If the results do not seem repeatable check all connectors and cables Full Two Port Error Correction Procedure Note This is the most accurate error correction procedure Since the analyzer takes both forward and reverse sweeps this procedure takes more time than the other cor...

Страница 294: ...LLCAL here Figure 11 1 Standard Connections for Full Two Port Error Correction DRAFT 3 21 106 15 14 Error Terms 11 3 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 295: ...n press NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN TRANSMISSION 14 Press NNNNNNNNNNNNNNNNNNNNNNNNNNNNN ISOLATION and select from the following two options If you will be measuring devices with a dynamic range less than 90 dB press NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN OMIT ISOLATION If you will be measuring devices with a dynamic range greater than 90 dB follow these steps a Connect impedance m...

Страница 296: ...edures 18 This completes the full two port correction procedure You can connect and measure your device under test Table 11 1 Calibration Coefficient Terms and Tests Calibration Coe cient Calibration Type Test Number Response Response and Isolation 1 port 2 port 1 ER or ET EX ED ED EDF 32 2 ET ER ES ESF 33 3 ER ERF 34 4 EXF 35 5 ELF 36 6 ETF 37 7 EDR 38 8 ESR 39 9 ERR 40 10 EXR 41 11 ELR 42 12 ETR...

Страница 297: ...r b Press 4LOCAL5 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SYSTEM CONTROLLER NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SET ADDRESSES and select the appropriate peripheral to verify that the HP IB address is set correctly on the analyzer c Press 4SAVE RECALL5 and then choose either NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN PRINT MONOCHROME or NNNNNNNNNNNNNN PLOT d Press 4DISPL...

Страница 298: ... error term typical results following a full 2 port error correction guidelines to interpret each error term The same description applies to both the forward F and reverse R terms Directivity EDF and EDR Description Directivity is a measure of any detected power that is re ected when a load is attached to the test port These are the uncorrected forward and reverse directivity error terms of the sy...

Страница 299: ...are the forward and reverse uncorrected source match terms of the driven port Significant System Components load calibration kit device open calibration kit device short calibration kit device bridge test port connectors bias tees step attenuator transfer switch test port cables Affected Measurements Re ection and transmission measurements of highly re ective devices are most a ected by source mat...

Страница 300: ... path A or B input path Significant System Components open calibration kit device short calibration kit device R signal path if large variation in both ERF and ERR A or B input paths if only one term is a ected Affected Measurements All re ection measurements high or low return loss are a ected by the re ection tracking errors DRAFT 3 21 106 15 14 Error Terms 11 9 Artisan Scientific Quality Instru...

Страница 301: ...term magnitude changes dramatically with IF bandwidth a 10 Hz IF bandwidth must be used in order to lower the noise oor beyond the crosstalk speci cation Using averaging will also reduce the peak to peak noise in this error term Significant System Components sampler crosstalk Affected Measurements Transmission measurements primarily where the measured signal level is very low are a ected by isolat...

Страница 302: ... ection S11 S22 responses of a thru con guration during the calibration procedure Significant System Components thru cable cable connectors test port connectors Affected Measurements All transmission and re ection measurements of a low insertion loss two port devices are most a ected by load match errors Transmission measurements of lossy devices are also a ected DRAFT 3 21 106 15 14 Error Terms 1...

Страница 303: ... of the test port cables is included These terms are characterized by measuring the transmission S21 S12 of the thru con guration during the error correction procedure Significant System Components R signal path if both ETF and ETR and bad A or B input paths thru cable Affected Measurements All transmission measurements are a ected by transmission tracking errors 11 12 Error Terms DRAFT 3 21 106 1...

Страница 304: ...Figure ETFETR here Figure 11 7 Typical ETF ETR DRAFT 3 21 106 15 14 Error Terms 11 13 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 305: ...Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 306: ...tdown Circuit 12 6 Variable Fan Circuit and Air Flow Detector 12 6 Display Power 12 6 Probe Power 12 6 Digital Control Theory 12 6 A1 Front Panel 12 7 A2 Front Panel Processor 12 7 A9 CPU A10 Digital IF 12 7 Main CPU 12 7 Main RAM 12 8 EEPROM 12 8 Digital Signal Processor 12 8 A18 Display 12 8 A19 GSP 12 8 A16 Rear Panel 12 9 Source Theory Overview 12 9 A14 A13 Fractional N 12 10 A12 Reference 12 ...

Страница 307: ... 12 18 Receiver Theory 12 19 A4 A5 A6 Sampler Mixer 12 20 The Sampler Circuit in High Band 12 20 The Sampler Circuit in Low Band or Super Low Band 12 20 The 2nd LO Signal 12 21 The Mixer Circuit 12 21 A10 Digital IF 12 21 Index Contents 2 DRAFT 3 21 106 15 14 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 308: ...monic Analysis 12 16 12 7 External Source Mode 12 17 12 8 Tuned Receiver Mode 12 17 12 9 Simpli ed Block Diagrams of the Test Sets 12 19 12 10 Receiver Functional Group Simpli ed Block Diagram 12 20 Tables 12 1 Super Low Band Subsweep Frequencies 12 11 12 2 Low Band Subsweep Frequencies 12 12 12 3 High Band Subsweep Frequencies 12 15 12 4 Mixer Frequencies 12 21 DRAFT 3 21 106 15 14 Contents 3 Art...

Страница 309: ...Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 310: ...om its input and then compares it with the incident signal generated by the swept RF source The signals are then applied to a receiver for measurement signal processing and display The HP 8753D Option 011 vector network analyzer integrates a high resolution synthesized RF source and a dual channel three input receiver to measure and display magnitude phase and group delay of transmitted and re ect...

Страница 311: ...Sets Signal separation for the HP 8753D Option 011 network analyzer can be accomplished using any one of the following accessories HP 85044A B Transmission Re ection Test Set HP 85046A B S Parameter Test Set HP 85047A S Parameter Test Set HP Made Special Option Transmission Re ection or S Parameter Test Set HP 86205A 86207A RF Bridge HP 11667A Two Way Power Splitter and HP 86205A RF Bridge Signal ...

Страница 312: ... required error correction trace math formatting scaling averaging and marker operations according to the instructions from the front panel or over HP IB The formatted data is then displayed Required Peripheral Equipment In addition to the analyzer and the test set a system requires calibration standards for vector accuracy enhancement and cables for interconnections A Close Look at the Analyzer s...

Страница 313: ...tching power supply that provides regulated DC voltages to power all assemblies in the analyzer The A15 preregulator is enclosed in a casting at the rear of the instrument behind the display It is connected to the A8 post regulator by a wire bus A15W1 Figure 12 2 is a simpli ed block diagram of the power supply group Figure PSBLK12 here Figure 12 2 Power Supply Functional Group Simplified Block Di...

Страница 314: ...ital supply must be loaded by one or more assemblies and the 5 V sense line must be working If not the other preregulated voltages will not be correct Shutdown Indications the Green LED and Red LED The green LED is on in normal operation It is o when line power is not connected not switched on or set too low or if the line fuse has blown The red LED which is o in normal operation lights to indicat...

Страница 315: ...d An overtemperature status message is sent to the A9 CPU to initiate a warning message on the analyzer display The fan also runs at full speed if the air ow detector senses a low output of air from the fan Full speed is normal at initial power on Display Power The A8 assembly supplies voltages to the display through a wire cable The A8 supplies 5VCPU and 65 V to the A19 GSP then the 65 V is route...

Страница 316: ...t panel LEDs that provide status information to the user A9 CPU A10 Digital IF The A9 CPU assembly contains the main CPU central processing unit the digital signal processor memory storage and interconnect port interfaces The main CPU is the master controller for the analyzer including the other dedicated microprocessors The memory includes EEPROM RAM EPROM and ROM Data from the receiver is serial...

Страница 317: ...ts can be updated by executing the routines in Chapter 3 Adjustments and Correction Constants Digital Signal Processor The digital signal processor receives the digitized data from the A10 digital IF It computes discrete Fourier transforms to extract the complex phase and magnitude data from the 4 kHz IF signal The resulting raw data is written into the main RAM A18 Display The A18 display is a 7 ...

Страница 318: ...ates the RF output signal EXT TRIG This allows connection of an external negative TTL compatible signal that will trigger a measurement sweep The trigger can be set to external through softkey functions TEST SEQ This outputs a TTL signal that can be programmed in a test sequence to be high or low or pulse 10 seconds high or low at the end of a sweep for a robotic part handler interface LIMIT TEST ...

Страница 319: ...e in the pulse generator produces a comb of harmonic multiples of the VCO output These harmonics provide the high band LO local oscillator input to the samplers In low band and super low band the operation the pulse generator is turned o A11 Phase Lock This assembly compares the rst IF derived from the source output in the A4 sampler to a stable reference and generates an error voltage that is int...

Страница 320: ...n the A13 assembly as in high band operation 2 The fractional N VCO signal is mixed with 40 MHz to produce a reference signal The signal FN LO from the Fractional N VCO goes to the A12 reference assembly where it is mixed with the 4O MHz VCXO voltage controlled crystal oscillator The resulting signal is the reference to the phase comparator in the A11 assembly 3 The A3 source is pretuned The signa...

Страница 321: ...e full low band is produced in two sub sweeps to allow addition IF ltering below 3 MHz At the transition between subsweeps the source is pretuned and then relocks Table 12 2 lists the low band subsweep frequencies at the fractional N VCO and the RF output Table 12 2 Low Band Subsweep Frequencies Fractional N MHz 1st IF MHz RF Output MHz 40 3 to 43 3 0 3 to 3 3 0 3 to 3 3 43 3 to 56 0 3 3 to 16 0 3...

Страница 322: ...generator assembly The SRD multiplies the fundamental signal from the fractional N into a comb of harmonic frequencies The harmonics are used as the 1st LO local oscillator signal to the samplers One of the harmonic signals is 1 MHz below the start signal set from the front panel 3 The A3 source is pretuned The source RF OUT is fed to the A4 sampler The pretune DAC in the A11 phase lock assembly s...

Страница 323: ... 7 A synthesized subsweep is generated by A13 A14 The A3 source tracks the synthesizer When the source is phase locked to the synthesizer at the start frequency the synthesizer starts to sweep The phase locked loop forces the source to track the synthesizer maintaining a constant 1 MHz 1st IF signal The full high band sweep is generated in a series of subsweeps by phase locking the A3 source signa...

Страница 324: ...late this frequency back to the frequency the receiver expects Otherwise phase locking and source operation occur as usual Harmonic Analysis Option 002 The analyzer can measure the 2nd or 3rd harmonic of the fundamental source frequency on a swept or CW basis with the harmonic analysis feature optional To make this measurement the reference frequency normally 1 MHz from the A12 reference assembly ...

Страница 325: ...oltage from the A11 phase lock assembly controls the VCO of the A14 fractional N assembly and not the A3 source See Figure 12 7 The VCO s output still drives the 1st LO of the samplers and down converts the RF signal supplied by the external source The resulting 1st IF is fed back to the A11 phase lock assembly compared to the 1 000 MHz reference and used to generate a tuning voltage as usual Howe...

Страница 326: ...ed so that one of its harmonics 1st LO down converts the RF input to the samplers In contrast to external source mode the analyzer does not phase lock at all However the 1st LO is synthesized The analyzer can function as a swept tuned receiver similar to a spectrum analyzer but the samplers create spurious signals at certain frequencies which limit the accuracy of such measurements Figure TRBLK12 ...

Страница 327: ...dent signal is routed through a switch to one of two directional bridges at the measurement ports The RF path switch is controlled by the analyzer to enable switching between forward and reverse measurements A 70 dB step attenuator in the test set also controlled from the analyzer adjusts the power level to the DUT without changing the level of the incident power in the reference path Two bias tee...

Страница 328: ...he A9 CPU described in Digital Control Theory to measure and process input signals into digital information for display on the analyzer Figure 12 10 is a simpli ed block diagram of the receiver functional group The A12 reference assembly is also included in the illustration to show how the 2nd LO signal is derived DRAFT 3 21 106 15 14 Theory of Operation 12 19 Artisan Scientific Quality Instrument...

Страница 329: ... so that the only remaining response is the di erence between the source frequency and the harmonic 1 MHz below it This xed 1 MHz signal is the 1st IF Part of the 1st IF signal from the R sampler is fed back to the A11 phase lock assembly the RF output must be connected externally to the R input connector for phase locked operation The Sampler Circuit in Low Band or Super Low Band In low band or s...

Страница 330: ...12 4 shows Table 12 4 Mixer Frequencies Band 1st IF 2nd LO 2nd IF Super Low 0 010 to 0 300 MHz 0 014 to 0 304 MHz 4 0 kHz Low 0 300 to 16 0 MHz 0 304 to 16 004 MHz 4 0 kHz High 1 000 MHz 0 996 MHz 4 0 kHz This band is present on the HP 8753D Option 011 only when it is combined with the Option 006 A10 Digital IF The three 4 kHz 2nd IF signals from the sampler mixer assemblies are input to the A10 d...

Страница 331: ...Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 332: ...emoval 14 12 Replacement 14 14 Type N Connector Assembly 14 16 Tools Required 14 16 Removal 14 16 Replacement 14 18 A1 Keyboard 14 20 Tools Required 14 20 Removal 14 20 Replacement 14 20 A2 Front Panel Interface 14 22 Tools Required 14 22 Removal 14 22 Replacement 14 22 A3 Source Assembly 14 24 Tools Required 14 24 Removal 14 24 Replacement 14 24 A4 A5 A6 Samplers and A7 Pulse Generator 14 26 Tool...

Страница 333: ...Replacement 14 40 A18 Display 14 42 Tools Required 14 42 Removal 14 42 Replacement 14 42 A19 Graphics Processor 14 44 Tools Required 14 44 Removal 14 44 Replacement 14 44 A20 Disk Drive 14 46 Tools Required 14 46 Removal 14 46 Replacement 14 46 A26 High Stability Frequency Reference Option 1D5 14 48 Tools Required 14 48 Removal 14 48 Replacement 14 48 B1 Fan 14 50 Tools Required 14 50 Removal 14 5...

Страница 334: ...Tables 14 1 Related Service Procedures 14 52 DRAFT 3 21 106 15 15 Contents 3 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 335: ...Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 336: ...of the HP 8753D Option 011 Network Analyzer A table showing the corresponding post repair procedures for each replaced assembly is located at the end of this chapter DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 1 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 337: ...and Performance Tests Warning These servicing instructions are for use by qualified personnel only To avoid electrical shock do not perform any servicing unless you are qualified to do so Warning The opening of covers or removal of parts is likely to expose dangerous voltages Disconnect the instrument from all voltage sources while it is being opened Warning The power cord is connected to internal...

Страница 338: ...e A3 Source Assembly A4 A5 A6 Samplers and A7 Pulse Generator A8 A10 A11 A12 A13 A14 Card Cage Boards A9 CPU Board A9BT1 Battery A15 Preregulator A16 Rear Panel Interface A17 Motherboard Assembly A18 Display A19 Graphics Processor A20 Disk Drive A26 High Stability Frequency Reference Option 1D5 B1 Fan DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 3 Artisan Scientific Qual...

Страница 339: ...terials is prohibited 1 Disconnect the power cord 2 Use a small slot screwdriver to pry open the fuse holder 3 Replace the blown fuse with a 3 A 250 V F fuse HP part number 2110 0708 Replacement Simply replace the fuse holder 14 4 Assembly Replacement and Post Repair Procedures DRAFT 3 21 106 15 15 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 340: ...Line Fuse Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 5 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 341: ...tem 4 that corresponds to the side cover you want to remove by loosening the attaching screw item 5 3 Remove the handle assembly item 6 by loosening the attaching screws item 7 4 Slide cover o Removing the bottom cover 1 Remove both lower rear feet item 4 by loosening the attaching screws item 5 2 Loosen the bottom cover screw item 8 3 Slide cover o 14 6 Assembly Replacement and Post Repair Proced...

Страница 342: ...Covers Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 7 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 343: ...tool take care not to scratch the glass 3 Remove the two screws item 2 exposed by the previous step The bezel item 3 is now free from the frame Remove it 4 Remove the trim strip item 4 from the top edge of the front frame by prying under the strip with a small slot screwdriver 5 Remove the two screws item 5 from the top edge of the frame 6 Remove the left side trim strip item 6 from the front fram...

Страница 344: ...t Panel Assembly Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 9 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 345: ...nt panel by pressing down and out on the connector locks The front panel is now free from the instrument Replacement Reverse the order of the removal procedure Note When reconnecting semi rigid cables it is recommended that the connections be torqued to 10 in lb 14 10 Assembly Replacement and Post Repair Procedures DRAFT 3 21 106 15 15 Artisan Scientific Quality Instrumentation Guaranteed 888 88 S...

Страница 346: ...t Panel Assembly Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 11 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 347: ...edge 3 Remove the screw from the pc board stabilizer item 2 and remove the stabilizer 4 Lift the reference board A12 from its motherboard connector and disconnect W13 from A12J3 5 Remove the six screws item 3 next to the preregulator from the rear panel as shown 6 Remove the four screws item 4 surrounding the connector interfaces from the rear panel as shown 14 12 Assembly Replacement and Post Rep...

Страница 348: ... Panel Assembly Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 13 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 349: ... the two screws that attach it to the rear frame The preregulator is now sitting loosely in the instrument Gently press the top of the graphics board A19 towards the display A18 then lift up Disconnect the three exible cables W21 W22 and W23 from the graphics board A19 The rear panel is now detached Replacement Reverse the order of the removal procedure 14 14 Assembly Replacement and Post Repair P...

Страница 350: ... Panel Assembly Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 15 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 351: ...Remove the source bracket item 1 4 Disconnect the semi rigid cables W1 W2 W3 and W4 from the source and the samplers 5 Remove the two screws item 2 that secure the bracket item 3 holding the semi rigid cables against the card cage assembly Remove the bracket 6 Remove the right side trim strip item 4 from the front frame Remove the screw item 5 that secures the right end of the Type N connector bra...

Страница 352: ...Connector Assembly Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 17 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 353: ...ector assembly item 7 Replacement Reverse the order of the removal procedure Note When reconnecting semi rigid cables it is recommended that the connections be torqued to 10 in lb 14 18 Assembly Replacement and Post Repair Procedures DRAFT 3 21 106 15 15 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 354: ...Connector Assembly Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 19 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 355: ... front panel Detach the keyboard assembly Replacement Reverse the order of the removal procedure Note When reinstalling the keyboard assembly A1 place the eight screws in the holes plated with a circular pattern The other four holes secure the interface board A2 Initially you should install all eight screws loosely Then you can go back and tighten each one This will ensure that the board is correc...

Страница 356: ...A1 Keyboard Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 21 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 357: ...isconnect A1W1 from the interface board A2 inserting the blade of a small slot screwdriver into the slots on the sides of the ribbon cable connector Gently pry upward on either side of the connector until the ribbon cable is detached 4 Remove the four screws item 1 from the corners of the interface board A2 Remove the board Replacement Reverse the order of the removal procedure 14 22 Assembly Repl...

Страница 358: ...nt Panel Interface Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 23 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 359: ...he loose semi rigid cable W1 to the right and lift up on the source bracket handle item 3 to remove the source assembly from the instrument Replacement 1 Slide the edges of the sheet metal partition item 4 into the guides at the front and back of the source compartment Press down on the module to ensure that it is well seated in the motherboard connector 2 Push down the retention clips Reconnect t...

Страница 360: ...Source Assembly Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 25 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 361: ...s on top of the assembly will become loose once the four screws are removed Be sure to replace the grounding clip when reinstalling the pulse generator assembly If you re removing more than one sampler be careful not to mix them The R sampler A4 is di erent from the A and B samplers A5 and A6 Replacement Reverse the order of the removal procedure Note When reconnecting semi rigid cables it is reco...

Страница 362: ...ers and A7 Pulse Generator Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 27 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 363: ...f the board Lift the board from the card cage slot just enough to disconnect any exible cables that may be connected to it 4 Remove the board from the card cage slot Replacement Reverse the order of the removal procedure Note Be sure to route W8 and W9 as shown No excess wire should be hanging in the A11 and A14 board slots Routing the wires in this manner will reduce noise and crosstalk in the in...

Страница 364: ... A13 A14 Card Cage Boards Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 29 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 365: ...cures the CPU board A9 to the deck Slide the board towards the front of the instrument so that it disconnects from the three stando s item 3 5 Disconnect the four ribbon cables W37 W20 W35 and W36 from the CPU board A9 6 Lift the board o of the stando s Replacement Reverse the order of the removal procedure 14 30 Assembly Replacement and Post Repair Procedures DRAFT 3 21 106 15 15 Artisan Scientif...

Страница 366: ...A9 CPU Board Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 31 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 367: ...ery A9BT1 contains lithium Do not incinerate or puncture this battery Dispose of the discharged battery in a safe manner Replacement 1 Make sure the new battery is inserted into the A9 board with the correct polarity 2 Solder the battery into place 3 Replace the A9 CPU board refer to A9 CPU Board in this chapter 14 32 Assembly Replacement and Post Repair Procedures DRAFT 3 21 106 15 15 Artisan Sci...

Страница 368: ...9BT1 Battery Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 33 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 369: ... order of the removal procedure Note When reinstalling the preregulator A15 make sure the three grommets item 1 on A15W1 are seated in the two slots item 2 on the back side of the preregulator and the slot item 3 in the card cage wall After reinstalling the preregulator A15 be sure to set the line voltage selector to the appropriate setting 115 V or 230 V 14 34 Assembly Replacement and Post Repair...

Страница 370: ...5 Preregulator Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 35 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 371: ...on 1D5 disconnect W30 from the rear panel interface board A16 3 Remove the hex nuts and washers from the BNC connectors item 5 as shown 4 Remove the two hex screws and washers that attach the test set I O interconnect item 6 Remove the rear panel board A16 Replacement Reverse the order of the removal procedure 14 36 Assembly Replacement and Post Repair Procedures DRAFT 3 21 106 15 15 Artisan Scien...

Страница 372: ...ar Panel Interface Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 37 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 373: ...to A15 Preregulator in this chapter 5 Remove the fan refer to B1 Fan in this chapter 6 Remove the graphics processor refer to A19 Graphics Processor in this chapter 7 Remove the Type N connector assembly refer to Type N Connector Assembly in this chapter 8 Remove the disk drive deck refer to A20 Disk Drive in this chapter 9 Remove the CPU board refer to A9 CPU Board in this chapter 10 Remove the m...

Страница 374: ...therboard Assembly Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 39 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 375: ... 4 from the left side of the front frame 16 Remove the actuator assembly item 5 and insulator strip item 6 by unhooking the spring item 7 and removing the screw item 8 that secures them to the display housing 17 Remove the front frame item 9 and rear frame item 10 by removing the attaching screws item 11 At this point only the motherboard card cage assembly should remain This whole assembly is rep...

Страница 376: ...therboard Assembly Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 41 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 377: ...g on the back of the display assembly There is an opening at the rear of the display housing where you can reach in with a couple of ngers to push the display Replacement 1 Remove the bottom shield that is attached to the replacement display Install the bottom shield on the old display assembly before you return it for repair 2 Ensure the ribbon cable A18W1 is connected to the display so you can r...

Страница 378: ...A18 Display Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 43 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 379: ...ar frame Gently press the top of the graphics processor board A19 towards the display A18 then lift up 3 Disconnect the two ribbon cables A18W1 and W20 and the wire bundle W14 from the graphics processor board A19 4 Disconnect the three exible cables W21 W22 and W23 from the graphics processor board A19 Remove the board Replacement Reverse the order of the removal procedure 14 44 Assembly Replacem...

Страница 380: ...raphics Processor Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 45 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 381: ...A9J15 4 Remove the two screws item 1 that secure the disk drive deck to the bottom edge of the front frame 5 Slide the disk drive deck out of the instrument 6 Remove the four screws that secure the disk drive A20 to the deck Remove the drive from the deck Replacement Reverse the order of the removal procedure Note When replacing the disk drive deck ensure that the two tabs item 2 at the rear of th...

Страница 382: ...20 Disk Drive Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 47 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 383: ...panel 4 Remove the screw item 2 that secures the high stability frequency reference board A26 to the bracket 5 Slide the board out of the bracket Be careful not to lose the plastic spacer washer item 3 that is on the BNC connector as the board is being removed Replacement Reverse the order of the removal procedure Note Before reinserting the high stability frequency reference board A26 into the br...

Страница 384: ...Frequency Reference Option 1D5 Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 49 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 385: ...ard A17J5 3 Remove the four screws and washers item 1 that secure the fan B1 Replacement Reverse the order of the removal procedure Note The fan should be installed so that the direction of the air ow is away from the instrument There is an arrow on the fan chassis indicating the air ow direction 14 50 Assembly Replacement and Post Repair Procedures DRAFT 3 21 106 15 15 Artisan Scientific Quality ...

Страница 386: ...B1 Fan Insert artwork here DRAFT 3 21 106 15 15 Assembly Replacement and Post Repair Procedures 14 51 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 387: ...OM Backup Disk Output Power Spectral Purity harmonics and mixer spurs or On Site Veri cation A4 A5 A6 Samplers A9CC Jumper Positions Sampler Magnitude and Phase CC Test 53 IF Ampli er CC Test 51 EEPROM Backup Disk Minimum R Level if R sampler replaced Input Crosstalk Absolute Amplitude Accuracy Frequency Response Input Impedance replace assembly only or On Site Veri cation A7 Pulse Generator A9CC ...

Страница 388: ...racy or On Site Veri cation Firmware Rev 5 20 08753 60185 A9CC Jumper Positions Source Default CC 9 Test 44 Pretune Default CC Test 45 Analog Bus CC Test 46 RF Output Power CC Test 47 Source Pretune CC Test 48 Sampler Magnitude and Phase CC Test 47 EEPROM Backup Disk Internal Test 0 A10 Digital IF A9CC Jumper Positions Analog Bus CC Test 46 Sampler Magnitude and Phase CC Test 53 ADC Linearity CC T...

Страница 389: ...Sideband EEPROM Backup Disk Spectral Purity other spurious signals Frequency Range and Accuracy A14 Fractional N Digital A9CC Jumper Positions Fractional N Frequency Range EEPROM Backup Disk Frequency Range and Accuracy or On Site Veri cation A15 Preregulator None Self Test A16 Rear Panel Interface None Internal Test 13 Rear Panel A17 Motherboard None Self Test A18 Display Vertical Position and Fo...

Страница 390: ...ent for Service 15 4 Safety Symbols 15 5 Instrument Markings 15 5 General Safety Considerations 15 6 Safety Earth Ground 15 6 Before Applying Power 15 6 Servicing 15 6 Index DRAFT 3 21 106 15 15 Contents 1 Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 391: ...Artisan Scientific Quality Instrumentation Guaranteed 888 88 SOURCE www artisan scientific com ...

Страница 392: ...rranty period Hewlett Packard Company will at its option either repair or replace products which prove to be defective For warranty service or repair this product must be returned to a service facility designated by Hewlett Packard Buyer shall prepay shipping charges to Hewlett Packard and Hewlett Packard shall pay shipping charges to return the product to Buyer However Buyer shall pay all shippin...

Страница 393: ...LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER BASED ON CONTRACT TORT OR ANY OTHER LEGAL THEORY Assistance Product maintenance agreements and other customer assistance agreements are available for Hewlett Packard products For any assistance contact your nearest Hewlett Packard Sales and Service O ce 15 2 Safety and Licensing DRAFT 3 21 106 15 15 Artisan Scientif...

Страница 394: ...47 342 2000 New Jersey Texas Hewlett Packard Co Hewlett Packard Co 150 Green Pond Rd 930 E Campbell Rd Rockaway NJ 07866 Richardson TX 75081 201 586 5400 214 231 6101 EUROPEAN FIELD OPERATIONS Headquarters France Germany Hewlett Packard S A Hewlett Packard France Hewlett Packard GmbH 150 Route du Nant d Avril 1 Avenue Du Canada Hewlett Packard Strasse 1217 Meyrin 2 Geneva Zone D Activite De Courta...

Страница 395: ...0 Beach Road Shuang Yu Shu Tokyo 192 Japan 29 00 Gateway West Hai Dian District 81 426 60 2111 Singapore 0718 Beijing China 65 291 9088 86 1 256 6888 Taiwan Hewlett Packard Taiwan 8th Floor H P Building 337 Fu Hsing North Road Taipei Taiwan 886 2 712 0404 Shipment for Service If you are sending the instrument to Hewlett Packard for service ship the analyzer to the nearest HP service center for rep...

Страница 396: ...o could result in injury or loss of life Do not proceed beyond a warning note until the indicated conditions are fully understood and met Instrument Markings LThe instruction documentation symbol The product is marked with this symbol when it is necessary for the user to refer to the instructions in the documentation CE The CE mark is a registered trademark of the European Community If accompanied...

Страница 397: ...To prevent electrical shock do not remove covers Warning These servicing instructions are for use by qualified personnel only To avoid electrical shock do not perform any servicing unless you are qualified to do so Warning The opening of covers or removal of parts is likely to expose dangerous voltages Disconnect the instrument from all voltage sources while it is being opened Warning Adjustments ...

Страница 398: ...quipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentation Artisan Scientific Corporation dba Artisan Technology Group is not an affiliate representative or authorized distributor for any manufacturer listed herein We re here to make your life easier How...

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