HP 70310A Скачать руководство пользователя страница 59 | Manualshive

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background image

Oscillator

A

djustment

Oscillator

A

djustment

Purpose

This

adjustment

is

used

to

calibrate

the

HP

70310A

module's

internal

oscillator

.

This

adjustment

is

not

necessary

for

HP

70310A

Option

002

modules

,

because

they

do

not

have

an

internal

oven/oscillator

.

Note

The

HP

70310A

module's

oven/oscillator

and

the

other

module

circuits

must

be

at

operating

temperature

before

this

adjustment

is

performed.

Mainframe

power

and/or

the

external

power-pack

power

must

be

applied

for

at

least

24

hours

for

the

oven/oscillator

to

reach

operating

temperature

.

Mainframe

power

must

be

applied

for

at

least

one

hour

for

the

other

module

circuits

to

reach

operating

temperature

.

Description

The

output

signal

from

the

HP

70310A

module's

10

MHz

or

100

MHz

rear-panel

output

is

compared

to

an

external

frequency-reference

standard

while

the

module's

internal

oscillator

is

being

adjusted.

The

front-panel

oscillator

adjustment

door

is

removed

to

allow

access

to

the

internal

oven/oscillator

adjustments

.

Equipment

The

HP

70310A

module

must

be

installed

in

an

HP

70000

series

mainframe

such

as

the

HP

70001A.

This

adjustment

also

requires

a

10

MHz

or

100

MHz

external

frequency-reference

standard,

a

frequency

meter

,

and

various

cables

,

adapters

,

and

connectors

.

Procedure

Use

the

following

procedure

to

adjust

the

HP

70310A

module's

internal

oscillator

.

Refer

to

Figure

4-6

for

identication

of

the

parts

called

out

in

the

procedure

.

Note

When

removing

the

oscillator

adjustment

door

,

be

careful

not

to

lose

the

O-ring

that

is

behind

it.

1.

Remove

the

socket-head

cap-screw

(1).

2.

Remove

the

oscillator

adjustment

door

(2)

and

the

O-ring

behind

the

door

.

3.

Remove

the

cap-screws

that

cover

the

FINE

(3)

and

the

CO

ARSE

(4)

adjustments

.

4.

Connect

the

external

frequency-reference

standard

to

the

frequency

meter

and

note

the

measured

frequency

.

5.

Disconnect

the

external

frequency-reference

standard.

6.

Connect

the

HP

70310A

module's

rear-panel

10

MHz

or

100

MHz

output

to

the

frequency

meter

.

7.

While

adjusting

rst

the

CO

ARSE

(4)

and

then

the

FINE

(3)

adjustments

,

calibrate

the

frequency

output

of

the

HP

70310A

module

to

match

the

frequency

measured

in

step

4.

If

calibration

cannot

be

achieved,

the

HP

70310A

module

may

need

to

be

serviced.

8.

Replace

the

cap-screws

over

the

FINE

(3)

and

the

CO

ARSE

(4)

adjustments

.

9.

Replace

the

O-ring

and

the

oscillator

adjustment

door

(2).

V

erication

4-15

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Содержание 70310A

Страница 1: ...Installation and Veri cation Manual HP 70310A Precision Frequency Reference ABCDE HP Part No 70310 90059 Printed in USA July 1994 ...

Страница 2: ...of this material Restricted Rights Legend Use duplication or disclosure by the U S Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 for DOD agencies and subparagraphs c 1 and c 2 of the Commercial Computer Software Restricted Rights clause at FAR 52 227 19 for other agencies c Copyright Hewl...

Страница 3: ...another country Hewlett Packard warrants that its software and rmware designated by Hewlett Packard for use with an instrument will execute its programming instructions when properly installed on that instrument Hewlett Packard does not warrant that the operation of the instrument or software or rmware will be uninterrupted or error free Limitation of Warranty The foregoing warranty shall not appl...

Страница 4: ...N sign until the indicated conditions are fully understood and met WARNING The WARNING sign denotes a hazard It calls attention to a procedure which if not correctly performed or adhered to could result in injury to the user Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met DANGER The DANGER sign denotes an imminent hazard to people It warns the reade...

Страница 5: ...he protective conductor inside or outside of the instrument is likely to make the instrument dangerous Intentional interruption is prohibited For continued protection against re hazard replace fuse only with same type and ratings type nA nV The use of other fuses or materials is prohibited WARNING Before this instrument is switched on make sure it has been properly grounded through the protective ...

Страница 6: ......

Страница 7: ...N COLD LED 1 5 EXTERNAL REF Reference LED 1 5 PLL ERROR Phase Lock Loop Error LED 1 5 Oscillator Adjustment Door 1 5 Module Latch 1 6 Rear Panel Inputs and Outputs 1 6 A 1 OUT A 2 OUT and A 3 OUT 1 6 B 1 OUT B 2 OUT and B 3 OUT 1 6 A IN 1 6 B IN 1 6 100 MHz 1 6 EXT PWR 1 6 10 MHz 1 6 EXT REF 1 7 Mainframe Module Interconnect 1 7 Electrostatic Discharge Information 1 8 Reducing ESD Damage 1 8 PC Bo...

Страница 8: ... 10 Checking Module Operation 2 11 HP 70310A as a Separate Frequency Reference 2 11 Front Panel LEDs 2 11 Checking for Error Messages 2 11 HP 70310A as a Slave in an HP 70000 Modular Spectrum Analyzer System 2 12 Front Panel LEDs 2 12 Checking for Error Messages Spectrum Analyzer System with a Display 2 13 Checking for Error Messages Spectrum Analyzer System with a Controller 2 14 3 Speci cations ...

Страница 9: ...t 4 5 10 MHz Output Spurs Test 4 7 10 MHz Output Harmonics Test 4 10 Distribution Ampli er Test 4 12 Oscillator Adjustment 4 15 5 Troubleshooting Introduction 5 1 Status Error LEDs 5 1 Error Messages 5 2 Usage Operating Errors 5 2 Hardware Warning Errors 5 2 Hardware Broken Errors 5 3 Index Contents 3 ...

Страница 10: ...Fuse Removal and Replacement 2 6 2 6 Module Installation in Mainframe 2 7 2 7 Cable Connection Example 2 9 4 1 External Reference Input Test Setup 4 3 4 2 10 MHz and 100 MHz Output Power Test Setup 4 6 4 3 10 MHz Output Spurs Test Setup 4 8 4 4 10 MHz Output Harmonics Test Setup 4 11 4 5 Distribution Ampli er Test Setup 4 13 4 6 Oscillator Adjustment 4 16 Tables 1 1 Static Safe Accessories 1 10 1 ...

Страница 11: ...HP 70000 Modular Measurement System or as a separate frequency reference Chapter 3 Speci cations lists module speci cations and characteristics Chapter 4 Veri cation contains information about the tests needed to verify module speci cations and provides a procedure for adjusting the module s internal oven oscillator Chapter 5 Troubleshooting explains the most probable causes of the front panel sta...

Страница 12: ...l reference signal of 1 2 5 or 10 MHz to operate Option 910 adds another set of the manuals that normally ship with the module Option 915 adds the module service documentation and module veri cation software Safety Considerations Before operating this module familiarize yourself with any safety markings on the module and the safety instructions in this manual This module has been manufactured and ...

Страница 13: ...les and Service o ce Initial Inspection Inspect the shipping container for damage If the shipping container or cushioning material is damaged it should be kept until the contents of the shipment have been checked for completeness and the module has been checked mechanically and electrically Refer to the accessory information on the following pages to nd out what is shipped with the HP 70310A Preci...

Страница 14: ...Figure 1 2 HP 70310A Module with Accessories 1 4 General Information ...

Страница 15: ...ment System master for example HP 70900A ERR Error LED The ERR LED lights when an error condition exists OVEN COLD LED The OVEN COLD LED lights when the internal oven oscillator assembly is not warmed up to operating temperature The OVEN COLD LED is not used in HP 70310A Option 002 modules internal oven oscillator assembly deleted EXTERNAL REF Reference LED The EXTERNAL REF LED lights when an appr...

Страница 16: ... modules The signal injected at A IN is leveled and distributed to the A outputs A 1 OUT A 2 OUT and A 3 OUT The input signal must be from 5 to 300 MHz in frequency with a power level of 04 to 4 dBm B IN This distribution ampli er input is only present in HP 70310A Option 001 modules The signal injected at B IN is leveled and distributed to the B outputs B 1 OUT B 2 OUT and B 3 OUT The input signa...

Страница 17: ...gnal is applied to the EXT REF input the module automatically switches to the external reference HP 70310A Option 002 modules must have an external reference signal supplied HP 70310A Option 002 modules do not have an internal oven oscillator Mainframe Module Interconnect This multiple pin connector plugs into the mainframe and provides the power supplies and Hewlett Packard Modular System Interfa...

Страница 18: ...ombination and b conductive oor mat and heel strap combination The two types must be used together to ensure adequate ESD protection Refer to Table 1 1 for a list of static safe accessories and their part numbers Figure 1 4 Static Safe Work Station Reducing ESD Damage Below are suggestions that may help reduce the amount of ESD damage that occurs during testing and servicing instruments PC Board A...

Страница 19: ...y using a lint free cloth with a solution of 80 electronics grade isopropyl alcohol and 20 deionized water This procedure should be performed at a static safe work station Test Equipment Before connecting any coaxial cable to an instrument connector for the rst time each day momentarily short the center and outer conductors of the cable together Caution Do not short the coaxial cable from the exte...

Страница 20: ...1169 Hard surface static control mat Large black 1 2m 2 1 5m 4 ft 2 5 ft 92175A Small black 0 9m 2 1 2m 3 ft 2 4 ft 92175C Soft surface static control mat Brown 1 2m 2 2 4m 4 ft 2 8 ft 92175B Tabletop static control mat 58 cm 2 76 cm 23 in 2 30 in 92175T Antistatic carpet Small 1 2m 2 1 8m 4 ft 2 6 ft natural color 92176A russet color 92176C Large 1 2m 2 2 4m 4 ft 2 8 ft natural color 92176B russe...

Страница 21: ...kard products To obtain servicing information or to order replacement parts contact the nearest Hewlett Packard Sales and Service O ce listed in Table 1 2 In any correspondence be sure to include the pertinent information about model numbers serial numbers or assembly part numbers General Information 1 11 ...

Страница 22: ...ay 303 649 5000 6 907 78 25 IN SINGAPORE Georgia IN GERMAN FEDERAL Hewlett Packard Singapore Hewlett Packard Co REPUBLIC Pte Ltd 2000 South Park Place Hewlett Packard GmbH 1150 Depot Road P O Box 105005 Vertriebszentrale Frankfurt Singapore 0410 Atlanta GA 30339 Berner Strasse 117 273 7388 404 955 1500 Postfach 560 140 Telex HPSGSO RS34209 D 6000 Frankfurt 56 Fax 65 2788990 Illinois 0611 50 04 1 H...

Страница 23: ...ble make sure the following information is sent with the returned instrument a Type of service required b Description of the problem state if the problem is constant or intermittent c Name and phone number of technical contact person d Return address e Model number of returned instrument f Full serial number of returned instrument g List of any accessories returned with instrument 2 Pack the instr...

Страница 24: ...nstrument several times in this material should both protect the instrument and prevent it from moving in the carton 3 Seal the carton with strong nylon adhesive tape 4 Mark the carton FRAGILE HANDLE WITH CARE 5 Retain copies of all shipping papers 1 14 General Information ...

Страница 25: ...1 Carton Outer 2 5180 2321 9 1 Carton Inner 3 5180 2319 5 2 Foam Pad 5180 7829 2 2 Foam Pady This is used for packaging the HP 70001A yThis is used for packaging the HP 70206A sigspace Figure 1 5 Packaging Materials for Mainframe General Information 1 15 ...

Страница 26: ...Description 1 9211 5118 9 1 Carton Outer 2 9211 5119 0 1 Carton Inner 3 5180 2369 5 1 Carton Slider 4 4280 0493 3 2 Foam Insert 5 5180 2370 8 2 Foam Pad sigspace Figure 1 6 Packaging Materials for Modules 1 16 General Information ...

Страница 27: ...ter 3 for information about input requirements and output capabilities Installing the module in an HP 70000 Modular Measurement System requires the following steps 1 Addressing the module 2 Installing the external power pack not done for HP 70310A Option 002 modules 3 Installing the module into the mainframe 4 Connecting the rear panel cables Installing the module as a separate frequency reference...

Страница 28: ...dress Map If the HP 70310A module is going to be used in an HP 70000 Modular Spectrum Analyzer System where the modules all have their factory preset addresses the HP 70310A module probably will not need to have its factory preset address changed However if the factory preset addresses of the modules in the system have been changed or if the HP 70310A module is being used in another type of HP 700...

Страница 29: ... switches are factory preset to binary 1 on resulting in an HP MSIB address of 7 19 row 7 column 19 Use the procedure below to change the address switches 1 Set the three ROW switches to the binary value of the module s HP MSIB row number For example if the row number is 7 change the switches to binary 111 as shown in Figure 2 2 2 Set the ve COLUMN switches to the binary value of the module s HP M...

Страница 30: ...Figure 2 3 External Power Pack Installation 2 4 Installation ...

Страница 31: ...the external power pack must be set to correspond with the voltage of the ac power source For example Figure 2 4 shows the line voltage selector set to 100 volts Caution The external power pack can be damaged if its line voltage selector is not set correctly before the external power pack is plugged into the ac power source Figure 2 4 External Power Pack Line Voltage Selector AC Power Source The e...

Страница 32: ...r pack s line fuse and a spare fuse are located in the line cord receptacle housing on the left side of the external power pack See Figure 2 5 for fuse removal and replacement information The fuse shipped with the external power pack depends on the line voltage used in the country of destination Table 2 2 shows the fuse value and part number for the di erent line voltages Table 2 2 External Power ...

Страница 33: ...mainframe See Figure 2 6 for identi cation of the module and mainframe parts called out in the procedure 1 Turn the mainframe LINE switch o 2 Open the mainframe front panel door 3 Slide the module into the mainframe 4 Press against the module front panel while tightening the module latch with an 8 mm hex ball driver 5 Close the mainframe front panel door Figure 2 6 Module Installation in Mainframe...

Страница 34: ...requency reference HP 71210A System Connections Follow the steps below to connect the HP 70310A module as shown in Figure 2 7 1 Connect the external power pack cable to the HP 70310A module s rear panel EXT PWR connector 2 Plug the external power pack line cord into an appropriate ac power source 3 Connect the HP 70310A module s 100 MHz output to the HP 70900A module s 100 MHz IN connector Other C...

Страница 35: ...A IN A reference frequency signal with a frequency of 5 to 300 MHz can be connected to the module s B IN connector This provides three reference frequency outputs B 1 OUT B 2 OUT and B 3 OUT These outputs will have the same frequency as the reference frequency signal at B IN The 100 MHz output supplies a stable frequency reference signal for use by HP 70000 Modular Measurement Systems and other in...

Страница 36: ... error or 6016 No Freq Reference error codes are displayed at instrument power up make sure that an appropriate external frequency reference is connected to any HP 70310A Option 002 modules in the system Other Con gurations The HP 70310A Option 002 module has the following connections available The module s 100 MHz output supplies a stable frequency reference signal for use by HP 70000 Modular Mea...

Страница 37: ...s run The ACT LED should be o The ERR LED should be on if the oven oscillator is still cold The ERR LED may stay on when the OVEN COLD LED goes o If this happens cycling the power turning the mainframe o then quickly turning it on again should result in the ERR LED going o HP 70310A Option 002 modules should not have the ERR LED go on The OVEN COLD LED should be on if the oven oscillator is still ...

Страница 38: ...front panel LEDs and by checking for error messages To verify that the local oscillator is using an external frequency reference the local oscillator is queried using an HP 70000 Modular Measurement System display or an HP 9000 Series 200 controller Front Panel LEDs The power on self test runs automatically when power is rst applied to the module The following listing describes what the status of ...

Страница 39: ...r error messages are present for the HP 70310A module proceed to the next step If any error message other than the Oven cold message is displayed refer to Chapter 5 for troubleshooting information 4 If your HP 70900A has a rmware version of 870501 or earlier press NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN instr display then NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN EXTEND STATE 5 If your HP 70900A ha...

Страница 40: ... CLEAR Lo_addr Initialize analyzer HP IB interface 15 OUTPUT Lo_addr IP Initialize analyzer 20 DIM Answer 2400 Create ANSWER as variable for data 25 OUTPUT Lo_addr DSPTEXT EXTEND Interrogate LO for extended state 30 ENTER Lo_addr USING K Answers Return data to ANSWER 35 FOR I 1 TO LEN Answer 40 IF Answer I I CHR 10 THEN 45 PRINT 50 ELSE 55 PRINT Answer I I Display data 60 END IF 65 NEXT I 70 CLEAR...

Страница 41: ...les Speci cations and characteristics related to the distribution ampli ers apply only to HP 70310A Option 001 modules The following types of information are provided in this chapter Speci cations describe the warranted performance over the temperature range 0 C to 55 C except where noted after one hour of continuous operation Typical Performance where listed is not warranted but indicates perform...

Страница 42: ...error speci cation after 24 hour o period 30 days to meet frequency reference error speci cation after inde nite o period 30 minutes to be within 1 2 1007 of 24 hour warm up frequency at 25 C Inputs and Outputs All connectors are SMB male except for the EXT PWR connector used for dc power input from the external power pack 100 MHz Output Power 0 dBm 3 dB 02 dB Harmonics typical 025 dBc Spurious ty...

Страница 43: ...00 Hz O set 0125 dBc Hz 1 kHz O set 0145 dBc Hz Spurious 1 kHz O set 0135 dBc 1 kHz O set 0125 dBc Distribution Ampli er Input Frequency 10 to 300 MHz typical 5 to 300 MHz Power Range 64 dBm Impedance characteristic 50 Distribution Ampli er Output Power 300 MHz 0 dBm 62 dB 300 MHz 0 dBm 61 dB Impedance characteristic 50 VSWR typical 1 5 1 Note The performance of the distribution ampli ers is accep...

Страница 44: ...ristic only Dimensions The HP 70310A is a 1 8 width module Power and Cooling Requirements The power and cooling requirements of the HP 70310A module are provided by the HP 70000 Modular Measurement System mainframe An external power pack accessory is included with the HP 70310A module except HP 70310A Option 002 modules The external power pack mounts to the rear of the mainframe and supplies dc po...

Страница 45: ...ot have internal oven oscillators Table 4 1 lists the equipment required for the veri cation tests Note To verify the performance of an HP 70000 Modular Measurement System refer to the Installation and Veri cation Manual for the system master for example HP 70900A Local Oscillator Table 4 1 Equipment Required for Veri cation Tests Equipment Model or HP Part Number Quantity Required Local Oscillato...

Страница 46: ...er meter through a BNC to SMB cable to the RF OUTPUT of the synthesized source Calibrate the spectrum analyzer according to instructions in its Operating Manual Then connect the RF INPUT of the spectrum analyzer though a BNC to SMB cable to the 100 MHz output of the HP 70310A module device under test or DUT See Figure 4 1 Local Oscillator HP 70900A B Mainframe HP 70001A Spectrum Analyzer HP 8566B ...

Страница 47: ...tude for a 15 0 dBm power reading on the power meter Save these synthesized source settings in Resister 2 by pressing 4STORE5 425 on the front panel of the synthesized source 3 Set the synthesized source frequency to 10 0 MHz and adjust the amplitude for a 05 0 dBm power reading on the power meter Save these synthesized source settings in Register 3 by pressing 4STORE5 435 on front panel of the sy...

Страница 48: ...d source front panel to set the synthesized source frequency and amplitude to the settings saved in step 2 Repeat step 7 9 Press 4RECALL5 435 on the synthesized source front panel to set the synthesized source frequency and amplitude to the settings saved in step 3 Repeat step 7 10 Press 4RECALL5 445 on the synthesized source front panel to set the synthesized source frequency and amplitude to the...

Страница 49: ...ci ed limits Equipment Connect the RF output of the synthesized source to the EXT REF input of the HP 70310A module device under test or DUT See Figure 4 2 Local Oscillator HP 70900A B Mainframe HP 70001A Synthesized Source HP 8663A Power Meter HP 436A Power Meter Sensor HP 8482A Adapters Type N m to BNC f HP Part Number 1250 0780 Type N f to Type N f HP Part Number 1250 1472 Type N m to SMB m HP ...

Страница 50: ...n the power meter s Operating Manual 2 Set the synthesized source frequency to 10 0 MHz and amplitude to 0 dBm 3 Connect the power sensor to the DUT s 10 MHz output The power meter reading should be 0 dBm 02 dB 3 dB 02 dBm to 3 dBm 4 Connect the power sensor to the DUT s 100 MHz output The power meter reading should be 0 dBm 02 dB 3 dB 02 dBm to 3 dBm 4 6 Veri cation ...

Страница 51: ...the calibrated power meter through a BNC to SMB cable to the RF OUTPUT of the synthesized source Calibrate the spectrum analyzer according to instructions in its Operating Manual Then connect the RF INPUT of the spectrum analyzer though a BNC to SMB cable to the 10 MHz output of the HP 70310A module device under test or DUT See Figure 4 3 Local Oscillator HP 70900A B Mainframe HP 70001A Spectrum A...

Страница 52: ... for a 15 0 dBm power reading on the power meter Save these synthesized source settings in Resister 2 by pressing 4STORE5 425 on the front panel of the synthesized source 3 Set the synthesized source frequency to 5 0 MHz and adjust the amplitude for a 15 0 dBm power reading on the power meter Save these synthesized source settings in Register 3 by pressing 4STORE5 435 on front panel of the synthes...

Страница 53: ...Hz All signals should still be at least 80 dB below the carrier level noted in step 7 14 Change the spectrum analyzer center frequency setting to 12 MHz All signals should still be at least 80 dB below the carrier level noted in step 7 15 Press 4RECALL5 435 on the synthesized source front panel to set the synthesized source frequency and amplitude to the settings saved in step 3 16 Set the spectru...

Страница 54: ...power meter through a BNC to SMB cable to the RF OUTPUT of the synthesized source Calibrate the spectrum analyzer according to instructions in its Operating Manual Then connect the RF INPUT of the spectrum analyzer though a BNC to SMB cable to the 10 MHz output of the HP 70310A module device under test or DUT See Figure 4 4 Local Oscillator HP 70900A B Mainframe HP 70001A Spectrum Analyzer HP 8566...

Страница 55: ... adjust the amplitude for a 0 dBm power reading on the power meter Connect the RF OUTPUT of the synthesized source to the DUT s EXT REF input 3 Set the spectrum analyzer marker to the highest peak and note the amplitude of the carrier frequency It should be approximately 0 dBm 4 Note the harmonics amplitude as you change the spectrum analyzer center frequency setting to 20 MHz 30 MHz 40 MHz 50 MHz...

Страница 56: ...limits Equipment Calibrate the power meter according to the instructions in the power meter Operating Manual Then connect the calibrated power meter through the cable to the RF output of the synthesized source See Figure 4 5 Local Oscillator HP 70900A B Mainframe HP 70001A Synthesized Source HP 8663A Power Meter HP 436A Power Meter Sensor HP 8482A Adapters Type N m to BNC f HP Part Number 1250 078...

Страница 57: ... the power meter Save these synthesized source settings in Register 2 by pressing 4STORE5 425 on the synthesized source front panel 3 Set the synthesized source frequency to 100 MHz and adjust its amplitude for a 04 0 dBm reading on the power meter Save these synthesized source settings in Register 3 by pressing 4STORE5 435 on the synthesized source front panel 4 Set the synthesized source frequen...

Страница 58: ...455 to set the synthesized source frequency and amplitude to the settings given in step 5 Then repeat step 8 10 Press 4RECALL5 445 to set the synthesized source frequency and amplitude to the settings given in step 4 11 One by one connect the power sensor to the DUT s A 1 OUT A 2 OUT and A 3 OUT Each output should have a power level of 0 dBm 62 0 dB 02 0 dBm to 2 0 dBm 12 Press 4RECALL5 435 to set...

Страница 59: ...as the HP 70001A This adjustment also requires a 10 MHz or 100 MHz external frequency reference standard a frequency meter and various cables adapters and connectors Procedure Use the following procedure to adjust the HP 70310A module s internal oscillator Refer to Figure 4 6 for identi cation of the parts called out in the procedure Note When removing the oscillator adjustment door be careful not...

Страница 60: ...Oscillator Adjustment 10 Replace the socket head cap screw 1 and tighten it to hold the oscillator adjustment door in place Figure 4 6 Oscillator Adjustment 4 16 Veri cation ...

Страница 61: ...T active LED lights when the module is activated by an HP 70000 Modular Measurement System master The ERR error LED lights when there is an error condition The OVEN COLD LED lights when the internal oven oscillator assembly is not warmed up to operating temperature The external power pack provides power for the heater in the internal oven oscillator assembly to help maintain the correct operating ...

Страница 62: ...write protect switch on the A2 Power Supply Processor board assembly is set to the write position The correct setting is silk screened on the left side cover of the module 6014 PLL error Either a hardware failure exists or the frequency reference source internal or external is not close enough to 1 2 5 or 10 MHz for the module to operate 6015 Oven cold The A6 Oven Oscillator assembly has not reach...

Страница 63: ...ist Amp A error Either the input to the A4 Distribution Ampli er A board assembly is beyond the speci ed operating range or a hardware failure exists The most probable causes are either a one or more outputs that are unleveled due to faulty HP 70310A hardware or b an input that is too low in power 7035 Dist Amp B error Either the input to the A3 Distribution Ampli er B board assembly is beyond the...

Страница 64: ......

Страница 65: ... and error LEDs 5 1 H hardkey 1 1 HP 70310A accessories 1 5 installing in mainframe 2 7 option 001 1 2 option 002 1 2 option 910 1 2 option 915 1 2 option W30 1 2 rear panel cable connections 2 8 10 HP MSIB address 2 2 I input and output connectors 1 6 internal oven oscillator 1 2 1 5 adjustment 4 15 16 L LEDs 1 5 M module con guration 2 1 module operation checks 2 11 14 O options 1 2 oscillator a...

Страница 66: ......

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