Anritsu Site Master S251A Скачать руководство пользователя страница 12

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NOTE

Take care to not lose the Mylar pad
under Q5.

13.

Remove the two hex standoff screws and
nuts holding the serial interface connector to
the test port panel.

14.

Using a 5/16 wrench, loosen the SMA connec-
tors for the Refl and Trans test ports and re-
move the test port panel.

NOTE

If the Power Monitor (Option 5) is in-
stalled, remove the two screws hold-
ing the Power Monitor PCB assembly
to the test port panel and lift it clear
of the connector on the main RF PCB
assembly.

15.

Reverse the above procedure to install the re-
placement RF PCB assembly.

16. REPLACEABLE PARTS

Part Number

Description

Qty

Accessories

10580-00016

User's Guide, Site Master
S120A, S235A, S250A

10580-00020

User's Guide, Site Master
S251A

10580-00007

Battery Replacement and
Disposal Guide

2300-211

Software Tools, Site Master

40-115

Power Supply

SM/STS

Connector, RF Short, N Male

SM/PL

Connector, RF Termination

806-62

Cable Assy, Cig Plug, Female

800-441

Serial Interface Cable Assy

D41955

Carrying Case

Replaceable Parts

B45009-1

N-Connector, Modified

B45009-2

N-Connector, Modified

B42893

EMI Shield

C41761

Liquid Crystal Display Assy

Part Number

Description

Qty

ND45417

Battery Pack Kit

ND45292

Main PCB Assy, S120A with RF
module and cables

ND45296

Main PCB Assy, S235A with RF
module and cables

ND45353

Main PCB Assy, S250A with RF
module and cables

ND48761

Main PCB Assy, S251A with RF
module and cables

D41766-3

Keypad PCB Assy

D40864-2

Membrane Keypad, Main

C41767

Membrane, Soft Keys

Hardware

790-171

Silicon Pad

761-10

Cap Vinyl, Black, round, 0.625
ID

790-52

Washer, #4, Shoulder, Nylon

900-257

Pan Head Screw, 0.312

790-445

Spacer PCB, 0.625, Self Mount

900-800

Pan Head Screw, #4, 0.312

900-811

Pan Head Screw, #4

900-326

Nut, Kep, 4-40, 0.312

900-697

Pan Head Screw, 4-40, 0.312

900-138

Screw, Pan, 2-56/patchlock,
0.18

B41753

Gasket, LCD

Case Parts

D40861-3

Case

C40863

Bumper

B45018

ID, Model S120A Label

B45017

ID, Model S235A Label

B46687

ID, Model S250A Label

48161

ID, Model S251A Label

Site Master MM

Содержание Site Master S251A

Страница 1: ...t board PCB An optional power monitor is also available A block diagram is shown in Figure 2 3 PERFORMANCE VERIFICATION Paragraphs 4 through 9 contain tests that can be used to verify the performance of the Site Master models S120A S235A S250A and S251A having any version of firmware 3 1 Initial Setup for Testing 1 Press and hold the ESCAPE CLEAR key then press the ON OFF key to turn on the Site M...

Страница 2: ...r the internal circuitry to stabilize 2 Press the MODE soft key 3 Use the Up Down Arrow key to highlight RF SOURCE then press ENTER 4 Press the FREQ soft key 5 Using the keypad or Up Down Arrow key enter 1000 0 MHz S120A and S251A or 2000 0 MHz S235A and S250A then press the ENTER key 6 Connect the RF cable from the Site Mas ter Refl Test Port to the RF Input on the MS2602A 7 Set up the Spectrum A...

Страница 3: ...efore continuing allow a five minute warm up for the internal circuitry to stabilize 2 Press the MODE soft key 3 Use the Up Down Arrow key to highlight GAIN INSERTION LOSS then press ENTER 4 Press the SCALE soft key 5 Press the TOP soft key 6 On the keypad press 0 then press EN TER Verify the bottom limit is set to 120 dBm 7 Press the MAIN soft key to return to the Main Menu 8 Press the OPT soft k...

Страница 4: ... S235A 10 dB 2 25 dB 1250 MHz q S250A 10 dB 2 25 dB 2000 MHz q S251A 10 dB 2 25 dB 1000 MHz 23 Connect the 10 dB and 30 dB attenuators in series to the Trans Test Port and verify that the reading is q S120A 40 dB 3 25 dB 1000 MHz q S235A 40 dB 3 25 dB 1250 MHz q S250A 40 dB 3 25 dB 2000 MHz q S251A 40 dB 3 25 dB 1000 MHz 6 RETURN LOSS VERIFICATION The following test can be used to verify the accur...

Страница 5: ... MHz to 20 GHz Anritsu 560 7N50B 10 dB Attenuator Weinshel 1R 10 30 dB Attenuator Weinshel 1R 30 RF Reference Source 0 050 GHz Anritsu MA2418A DC Power Supply Anritsu 2000 933 b Procedure 1 Connect the DC power supply to the MA2418A Reference Source Refer to Figure 5 2 Connect the MA2418A Reference Source to the input of the 560 7N50B RF detec tor 3 Connect the RF Detector output to the RF Detecto...

Страница 6: ...e power supply 3 Press and hold the ESCAPE CLEAR key then press the ON OFF key to turn on the Site Master This sets the instru ment to the factory preset state 4 Press the OPT soft key 5 Press the B3 soft key to activate the Bias Tee option 6 Verify that the display shows BIAS ON 15 0 V 0 mA 7 Connect the 22NF50 short to the Trans mission test port 8 Verify that the display shows BIAS ON Fault and...

Страница 7: ...o On 3 Press the System Menu key 4 Using the Menu up down keys Highlight RESET then press the Select key 5 At the RESET MENU display use the Menu up down keys to highlight RESET TO FACTORY DEFAULTS then press the Select key 6 Set the signal source for the frequency range as follows a Press the Frequency key b Using the Data Entry Keypad or Data Entry Knob set the START frequency to 0 01 GHz Press ...

Страница 8: ... the airline When the connectors are mis aligned a spike will usually be visible on the display 18 At the next menu prompt remove the Open and connect the Short to the beadless end of the airline Press the Se lect key to start the calibration process 19 At the next menu prompt remove the Short and connect the 50 Ohm Termina tion to the beadless end of the air line Press the Select key to start the...

Страница 9: ...anel 4 must stay with the front panel 5 Remove the bottom half 5 and fold it over to lay upside down on the work surface 6 Disconnect the battery connector from J6 6 of the Main RF PCB assembly 3 7 Remove the four screws 7 holding the bat tery bracket 8 in place and lift the bracket clear 8 Remove the battery assembly 9 Site Master MM 9 T e s t P o r t s 2 4 places 1 4 places R F D e t R e f l T r...

Страница 10: ...ration as a percentage of battery cell weight Spent nickel cadmium batteries are valuable re sources Because they are reusable do not throw them away Arrange for proper return for recycling in your locality If you do not have access to proper disposal methods return the battery pack to your Anritsu service center Service centers will dispose of the unit at no charge Anritsu service centers are lis...

Страница 11: ...12 Install the new LCD PCB Assembly 15 MAIN RF PCB ASSEMBLY REPLACEMENT This procedure provides instructions for replacing the main RF PCB Refer to Figure 9 during this pro cedure 1 Place the Site Master face up on a work sur face 2 Remove the four corner rubber bumpers 1 3 Remove the four screws PN 900 811 2 4 While holding the two halves of the Site Master together turn it over and set it face d...

Страница 12: ...Plug Female 1 800 441 Serial Interface Cable Assy 1 D41955 Carrying Case 1 Replaceable Parts B45009 1 N Connector Modified 1 B45009 2 N Connector Modified 1 B42893 EMI Shield 1 C41761 Liquid Crystal Display Assy 1 Part Number Description Qty ND45417 Battery Pack Kit 1 ND45292 Main PCB Assy S120A with RF module and cables 1 ND45296 Main PCB Assy S235A with RF module and cables 1 ND45353 Main PCB As...

Страница 13: ...USTRALIA ANRITSU PTY LTD Unit 3 170 Foster Road Mt Waverley VIC 3149 Australia Telephone 03 9558 8177 FAX 03 9558 8255 ISRAEL TECH CENT LTD Haarad St No 7 Ramat Haahayal Tel Aviv 69701 Telephone 03 64 78 563 FAX 03 64 78 334 SWEDEN ANRITSU AB Botivid Center S 1585 Stockholm Sweden Telephone 08 534 717 00 FAX 08 534 717 30 BRAZIL ANRITSU ELECTRONICA LTDA Praia de Botafogo 440 Sala 2401 CEP22250 040...

Страница 14: ...NOTES ...

Страница 15: ......

Страница 16: ......

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