Manual de Mantenimiento S331D

8/12/2019 Manual de Mantenimiento S331D

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Site MasterTM

Model S331D

Cable and Antenna Analyzer

MAINTENANCE MANUAL

490 JARVIS DRIVE MORGAN HILL, CA 95037-2809 P/N: 10580-00101

REVISION H

PRINTED: OCTOBER 2012

COPYRIGHT 2004-2012 ANRITSU CO


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Table of Contents

1. I n t r oduct ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2. D escript ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

3. VNA F req uen cy Accura cy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

4. VN A R et ur n L os s Ver ifica t ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

5. P ow er M on it or Ver ifi ca t ion (Opt ion 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

6. P ow er M et er Ver ifica t ion (Opt ion 29) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

7. T1/E 1 Ver if ica t ion (O pt ion 50). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

8. I ns ta C a l M od ule Ver ifica t ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

9. B a t t er y P a ck R em ov a l a n d R epla cem en t . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

10. B a t ter y I nfor ma t ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

11. F r on t P a n e l As sem bl y R em ov a l a n d R epl a cem en t . . . . . . . . . . . . . . . . . . . . . . 17

12. L C D As sem bly R epla cem en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

13. K ey P a d P C B R epla cem en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

14. K ey P a d Mem br a ne R epla cem en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

15. M a in P C B As sem bly R epla cem en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

16. O pt i on 5 P ow e r M on it or P C B As sem b ly R epl a cem en t . . . . . . . . . . . . . . . . . . . 23

17. O pt i on 50 T1/E 1 Te st e r P C B As s em b ly R ep la c em en t . . . . . . . . . . . . . . . . . . . . 24

18. Acces sor ies a n d R epla cea b le P a r t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

19. C ust om er S er vice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Site Master MM i


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1. Introduction

This ma nua l provides maint enance instructions for the S ite Mast er Model S331D Ca ble, Antenna an d

Base Station Analyzer. It describes the product and provides performance verification procedures, parts

replacement procedures, and a replaceable parts list.

2. Description

The S ite Ma ster is a ha ndh eld SWR/RL (sta nding wa ve ra tio/retur n loss), Dist a nce-To-Fau lt a nd power

meter (optiona l) measur ement instr ument. I t combines a synth esized source, a VSWR B ridge, an d r e-

ceiver circuitry in a compact instrument.

The following sections conta in tests tha t can be used t o verify th e performance of the Site Ma ster Model

S331D.

Throughout this manual, the term VNA may be used to denote Return Loss, SWR, Cable Loss and DTF

modes. All other m odes ar e referenced ind ividua lly.

3. VNA Frequency Accuracy

The following test can be used to verify the CW frequency accuracy of the Site Master. Measurement cali-

brat ion of the Site Ma ster is not required for th is test .

a. Equipment Required:

Spectrum Analyzer Anritsu Model MS2665C or equivalent

10 MHz Reference St an dar d

b. Procedure:

1. Connect a 10 MHz Reference signal to the 10 MHz S TD Ref In of the MS2665C or equivalent.

2. P r e s s a n d hol d t h e ESCAPE/CLEARkey, then press th e ON/OFFkey to turn on t he Site Ma ster.

(This sets t he instrument to the fa ctory preset sta te.)

NOTE: Before continuing, allow a five minute warm up for the internal circuitry to stabilize.

3. P r e ss t h eFREQ/DISTkey, then press th e F1soft key a nd set F1 to 1000 MHz, th en press the

ENTERkey.

4. P r e ss t h eF2 soft key, set F2 t o 1000 MHz, t hen press t he ENTERkey.

5. P r e ss t h eMEAS/DISPkey, then press t he Fixed CWsoft key to turn Fixed CW On.

6. Connect th e RF cable from th e Site Mast er Reflection Test Port t o the RF Input on the MS2665C

or equivalent.

Site Master MM 1


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7. Set up the MS2665C as follows:

(a ) P r es s t h ePresetkey, th en s elect Preset All(F1).

(b) P r e ss t h e Frequencykey.

(c) P r e ss t h e1 k ey a n d t h e n t h e GHz key to change the C enter Frequency to 1 GH z.

(d ) Pr e ss t h e Spankey.

(e ) P r e ss t h e7, 5, 0, a n d kHzkeys sequentia lly to change the Fr equency S pan to 750 kHz.

(f ) P r es s t h e RBW key.

(g ) Pr e ss t h e 1, 0 a n d kHzkeys sequentia lly to change the RB W to 10 kHz.

(h ) P r e ss t h e VBW key.

(i ) P r es s t h e Filter Offsoft key (F3) to turn the VB filter off.

(j) P r es s t h e Amplitudekey.

(k ) P r e ss t h e 0, a n d dBmkeys sequentially to chan ge the Reference Level to 0 dB m.

(l ) P r es s t h e Log Scale soft key (F5)

(m) S elect 2 dB/Div(F3) an d t he press the returnsoft key.

NOTE: If the Site Master has gone into the hold mode, press the RUN/HOLDkey to return to normal

mode.

8. When a peak response appears on the Spectrum Analyzer, press the Marker Peak Searchkey onthe S pectrum Analyzer. Verify t ha t the m arker peak readout va lue is 1000 MHz 75 kHz.

9. O n t h e Si t e Ma st e r, p r ess t h e MEAS/DISPkey th en the Fixed CWsoft key to tu rn F ixed CW off.

4. VNA Return Loss Verification

The following test can be used t o verify th e accuracy of return loss measur ements. Measurement calibra-

tion of the Sit e Mast er is required for this test .


20 dB offset, Anritsu SC7423


Open/Sh ort, Anrits u 22N50

50 Ohm Termin a tion, Anrit su 28N50-2 or S M/P L

b. Procedure:

1. P r e s s a n d hol d t h e ESCAPE/CLEARkey, then press th e ON/OFFkey to turn on the Site Ma ster.



2. P r e ss t h eMODEkey.

3. Use the Up/Down ar row key to highlight Return Loss, then press ENTER.

4. P r e ss t h eSTART CALkey.

5. Follow the instr uctions on the screen to perform a ca libra tion using a 22N50 Open/Sh ort an d

28N50-2 or SM/P L Term in a ti on.

6. Connect the 20 dB offset to the Refl Test Port a nd verify that the reading is 20 dB 1.7 dB.

7. Connect the 6 dB offset to the Refl Test Port a nd verify that the reading is 6 dB 1.2 dB.

2 Site Master MM


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5. Power Monitor Verification (Option 5)

The following test can be used to verify the accuracy of the power monitor function.


Anrit su MG 3692A Sy nth esized Signa l Source, with options 2A, 4 a nd 15A

Anritsu ML2438A Dua l Cha nnel Power Meter or equivalent

Anrit su MA2442D High Accura cy Power S ensor or equiva lent

Anritsu 34NN50A 50 Ohm adapter or equivalent Anritsu 34RKNF50 50 Ohm ada pter or equivalent

Anritsu 15NN50-1.5C RF Coaxial Cable or equivalent

Anritsu 560-7N50B N Type RF Detector

Aeroflex/Weins chel 1870A P ower S plit t er

b. Procedure:

1. Turn on the power meter and signal source.


2. Set the MG 3692A output power level to 5 dB m.3. Set the MG 3692A output to 1 G Hz CW.

4. Connect the power sensors to the power meter and calibra te the sensors.

5. On the power meter, press the S ensor key, the Ca l Factor soft key, and t hen the FR EQ soft key.

Use t he keypad to enter 1 GH z a s th e input signa l frequency, which sets the power meter t o the

proper power sensor cal factor. Press the SENSOR key on the power meter to display the power

reading.

6. Connect MG 3692A, power meter, RF detector, Power Split ter and P ower Sensor a s shown in Fig-

ur e1.

Site Master MM 3

SENSOR

A

ML2437A POWER METER

SOURCE 15NN50-1.5C

34RKNF50ADAPTER

1870A

DETECTOR

HOLDRUN

STARTCAL

AUTOSCALE

SAVESETUP

RECALLSETUP

LIMIT MARKER

SAVEDISPLAY

RECALLDISPLAY

PRINT

MODE FREQ/DIST AMPLITUDE MEAS/DISP

SYS

ENTER

CLEAR

ESCAPE

ON

OFF

/

1 2

4

5 6

7 8

9 0

3

+-

.

MT8212A CellMaster

F i g u r e 1. Power Monit or Veri f icat ion Setup


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7. Connect the externa l pow er supply (Anrit su par t num ber 40-187-R) to the Sit e Mast er.

8. O n t h e Si t e Ma st e r, p r ess a n d h old t h eESCAPE/CLEARkey, then press th e ON/OFFkey to turn on

the S ite Mast er. (This sets t he instrument to the fa ctory preset sta te.)

9. P r e ss t h eMODEkey. Use t he U p/Dow n a rrow key to high light Power Monitorand th en press

ENTER.

10. On the MG3692A press the Level key, then use the knob to adjust the power level so that the

power meter reads -40 dBm.

11. Verify that the Site Ma ster reading is -40 dB m 1.0 dB.12. Repeat steps 10 and 11 for the other power level settin gs show n in Ta ble 1.

4 Site Master MM

Power In @ 1 GHz Specification

0 dBm 1 dB

-7 dBm 1 dB

-21 dBm 1 dB

-40 dBm 1 dB

T a b l e 1 Power M onit or Test L evels


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6. Power Meter Verification (Option 29)

The following test can be used to verify the accuracy of the power measurements.


Anrit su MG 3692A Sy nth esized Signa l Source, with options 2A, 4 a nd 15A

Anritsu ML2438A Dua l Cha nnel Power Meter or equivalent

Anrit su MA2442A High Accura cy Power S ensor or equiva lent

Anritsu N241A50 Power Splitter or equivalent Anritsu 34NN50A 50ada pter or equivalent

Anritsu 34RSN50 50ada pter or equivalent

Anritsu 34RKNF50 50ada pter or equivalent

Anritsu 15NNF50-1.5C RF Coaxial Cable or equivalent

Aeroflex/Weins chel Model 44-10, 10 dB Fi xed Att enu a t or

b. Procedure:

1. Turn on the power meter and signal source.

NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.

2. On the power meter, press the Channelkey, the Setupsoft key and t hen the CHANNELsoft key to

display C ha nnel 2 setup menu. P ress the INPUTkey t wice to set t he input configuration to B.

Pr e ss t h e Sensorkey to display both Sensor A an d Sensor B Readings.

3. Connect the power sensors to the power meter and calibra te the sensors.

4. Set the MG 3692A output power level to 5 dB m.

5. Set th e MG3692A output to 50 MHz C W.

6. On the power meter, press the Sensorkey, the Cal Factorsoft key, and then t he FREQsoft key. U se

the keypad t o enter 50 MHz a s th e input signal frequency, which sets t he power m eter to the

proper power sensor cal factor. Press the SENSOR key on the power meter to display the power

reading.

7. Connect sensor A to the MG 3692A output, measure th e output power level and record the value

in colum n A of Ta ble2.

Site Master MM 5

A B C D E

Freq (MHz) Sensor A Reading

@ Source Output

Sensor A Reading

@ end of Attenu-

ator

Splitter/Attenuator

Combined Loss

Sensor B Reading

@ Power Splitter

Output

Sensor B Path

Power Splitter

Loss

50

10002000

2850

T a b l e 2. Out put Power L evel


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8. Disconnect Sensor A from the MG3692A output.

9. Connect th e power split ter to the MG3692A output and t he Sensor B t o one of the power split ter

outputs. Inst all t he 10 dB Fixed Attenua tor to the other power split ter output a nd t hen connect

Sensor A to the end of the Attenuator. Refer to Figure 2.

10. Record t he new sensor A rea ding in column B of Ta ble2.

11. Record S ensor B r eadin g in column D of Ta ble2.

12. Ca lculat e the Splitter/Att enua tor Combined Loss using the following formula a nd record th e re-

sult in column C of Ta ble2: C = A B

13. Ca lculat e the Sensor B path Power Split ter Loss using the following formula a nd record the re-

sult in column E of Ta ble2: E = A D

14. Repeat steps 10 thr ough 13 for 1000 MHz, 2000 MH z a nd 2850 MH z.

15. Ca lculat e the desired Sensor B Reading for 30 dBm Test P ower Level at the end of 10 dB at -tenuat or using the following formula: Desired Sensor B Reading = Test Power Level + C E

16. Record t he calculat ed results in Ta ble3.

6 Site Master MM

SENSOR B SENSOR A

A

B

ML2438APOWER METER

MG369XASOURCE15NNF50-1.5C

34RSN50ADAPTER

N241A50ATTENUATOR

F i g u r e 2. Test Setup

Freq (MHz) Desired Sensor B Reading for 30 dBm Input to Site Master

50

1000

2000

2850

T a b l e 3. 30 dB m Test Power L evel


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17. Using the power split ter , coaxia l cable and ada pters, connect t he Site Ma ster to th e signal source

an d the power sensor as shown in Figure 3.

18. Connect t he externa l pow er supply (Anrit su pa rt number 40-187-R) to the Sit e Mas ter.19. On the S ite Mast er, press an d hold the ESCAPE/CLEARkey, then press th e ON/OFFkey to turn on

the S ite Mast er. (This sets t he instrument to the fa ctory preset sta te.)

20. P r e ss t h e MODEkey. Use t he U p/Dow n a rrow key to highligh t Power Meterand t hen press ENTER.

21. P r e ss t h e Centersoft key a nd enter 50, then press the MHz soft key to set the center frequency to

50 MHz.

22. P r e ss t h e Spansoft key a nd enter 3, then press the MHz key to set the spa n to 3 MHz.

23. On the Power Meter, press the Sensork ey a n d t h e n t h e CalFactorsoft key. Select th e FRE Q soft

key and enter 50 MHz for the Input Signal Frequency. This sets the power meter to the proper

power s ensor cal factor. P ress the Sensor key to display t he power reading.

24. Set t he MG 3692A output t o 50 MHz C W an d a djust the power level so tha t t he power m eter dis-plays t he corresponding desired S ensor B R eadin g for -30 dB m a s recorded in Ta ble3.

25. Verify tha t the P ower Meter reading is w ithin t he specificat ions in Table 4.

NOTE: If the reading is unstable, turn on RMS Averaging by pressing the MEAS/DISP key, then the

RMS Averaging soft key. The number of points to average can be set to low, medium or high.

26. Repeat steps 22 an d 25 for 1000 MHz, 2000 MHz, a nd 2850 MH z.

Site Master MM 7

HOLDRUN

STARTCAL

AUTOSCALE

SAVESETUP

RECALLSETUP

LIMIT MARKER

SAVEDISPLAY

RECALLDISPLAY

PRINT

MODE FREQ/DIST AMPLITUDE MEAS/DISP

SYS

ENTER

CLEAR

ESCAPE

ON

OFF

/

1 2

4

5 6

7 8

9 0

3

+-

.

MT8212A CellMaster

ML2438A POWER METER

MA2442A

MG3692ASOURCE

S331D

15NNF50-1.5C

34NN50AADAPTER

10 dBATTENUATOR

34RSN50 ADAPTER

N241A50

F i g u r e 3. Power Meter Ver if icati on Setup

Freq (MHz) Measured Value Specification for units with

S/N 405039 and below

Specification for units with

S/N 405040 and above

50 30 dBm 1 dB 30 dBm 1.5 dB

1000 30 dBm 1 dB 30 dBm 1.5 dB

2000 30 dBm 1 dB 30 dBm 1.5 dB

2850 30 dBm 1.5 dB 30 dBm 1.5 dB

T a b l e 4. Power M eter Accuracy


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7. T1/E1 Verification (Option 50)

This procedure verify th a t th e T1/E1 Tester of t he S ite Ma ster is fun ctioning properly.


Tektr onix TDS 3032B O scilloscope wit h option TDS 3TMT

Tektronix AFTDS Differentia l Signa l Ada pter

Anrit su B a nt a m-P lug-to-B a nta m-P lug Extend er Ca ble (P /N 806-16)

T1/E1 Self Test1. P r e s s a n d hol d t h e ESCAPE/CLEARkey, then press th e ON/OFFkey to turn on the Site Ma ster.



2. P r e ss t h eSYS key, then the Self Test soft key.

3. Wh e n t h e Sit e Ma st e r h a s p a sse d t h e st a n d a r d se lf t e st , p r ess t h e T1/E1 Testsoft key.

4. After the Site Ma ster ha s passed the T1/E1 self test , press the ESCAPE/CLEARkey.

T1 Mask Test

1. Set t he Ada pter switch to 100 ohms, then connect it to the scope.

2. Connect one end of the extender cable to the TRANSMIT port of the S ite Mast er and the other

end t o the AFTDS a t Ch 1 of the oscilloscope.

3. O n t h e Si t e Ma st e r, p r ess t h e MODEkey, th en us e U p/Down key t o highlight T1 Testerand press

t h e ENTERkey.

4. P r e ss t h eMEAS/DISPk ey a n d t h e Vpp soft key, and use the Terminate/Bridgedsoft key to select Termi-

natea t the bottom of the display.

5. P r e ss t h eBacksoft key, then press the BERTsoft key

6. P r e ss t h eMEAS/DISPkey a nd select the Setup soft key.

7. P r e ss t h eMoresoft key, then select the Clock Source soft key.

8. P r e ss t h eInternalsoft key, then press th e Back soft key.

9. P r e ss t h eTransmit Levelsoft key and select 0 dB, then press the Backsoft key tw ice.

10. P r e ss t h e Patternsoft key, th en use t he U p/Down a rrow key to highligh t 1 IN 8a n d p r ess t h e

ENTERkey.

11. Set up the scope as follows:

(a) P ress the QU IC KME NU key, then use th e MENU soft key t o select Telecom.

(b) U se the St a nda rd a rrow s oft key to select G .703DS1 (ITU -T), 1.544 M b/s.

(c) P ress th e AU TOSE T key. The yellow w av eform sh ould fall wit hin t he blue ma sk.

(d) P ress t he Waveform Threshold soft key, an d use t he Cont rol/Coa rse knob to set t he th e wa ve-

form t o 400 an d t he Threshold t o 20.(e) P ress th e Autofit soft key a nd use t he Contr ol/Coa rse knob to set the num ber to 1.

(f) P ress the Run Test soft key.

12. Record the failed number for 400 waveforms. The failed number should be less than the selected

Threshold, which is 20.

8 Site Master MM


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E1 Mask Test

1. Set the Adapter swit ch to 120 ohms and connect it to the scope.

2. Connect the Extender cable to the Tra nsmit port of the Site Mast er.




4. O n t h e Si t e Ma st e r, p r ess t h e MODEkey, th en us e U p/Down key t o highlight E1 Testerand presst h e ENTERkey.

5. P r e ss t h eMEAS/DISPk ey a n d t h e Vpp soft key, and use the Terminate/Bridged soft key to select Termi-


6. P r e ss t h eBacksoft key, then press the BERTsoft key.


8. P r e ss t h eMoresoft key, then press th e Impedancesoft key and select 120.

9. P r e ss t h eBacksoft key, then select th e Clock Sourcesoft key.

10. P r e ss t h e Internalsoft key, then press the Backsoft key tw ice.

11. P r e ss t h e Patternsoft key, then use th e Up/Down a rrow key to highligh t 1 IN 8a n d p r ess t h eENTERkey.

12. Set up the scope as follows:

(a) P ress the QU IC KME NU key, then use th e MENU soft key t o select Telecom.

(b) U se the St a nda rd a rrow soft key to select E 1 Sym (ITU -T), 2.048 M b/s.

(c) P ress th e AU TOSE T key. The yellow w av eform sh ould fall wit hin t he blue mask.

(d) P ress t he Waveform Threshold soft key, an d use t he Cont rol/Coa rse knob to set t he th e wa ve-

form to 400 and th e Threshold t o 20.

(e) P ress th e Autofit soft key a nd use t he Contr ol/Coa rse knob to set the num ber to 1.

(f) P ress the Run Test soft key.

13. Record the failed number for 400 waveforms. The failed number should be less than the selected

Threshold, which is 20.

T1 Transmit Level Test

1. Set t he Adapter sw itch to 100 ohms then connect it to the scope.

2. Connect the Extender cable to the Tra nsmit port of the Site Mast er.




4. O n t h e Si t e Ma st e r, p r ess t h e MODEkey, th en us e U p/Down key t o highlight T1 Testerand presst h e ENTERkey.






Site Master MM 9


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10. P r e ss t h e Transmit Levelsoft key and select 0 dB, then press the Backsoft key tw ice.


ENTERkey.

12. Set up th e oscilloscope as follows:

(a) P ress QUIC K ME NU, then use the ME NU soft key to select Telecom.

(b) U se the Sta nda rd a rrow soft key to select None.

(c) U se the MENU soft key aga in to select S cope.

(d) Press the AUTOSET key, then set the horizontal SCALE to 2 micro seconds.

(e) P ress the MEASUR E key, then press the MORE soft key three t imes.

(f) Select th e P k-P k soft key a nd record the P k-P k read ing. The specification is 6.0 to 7.6 Vp-p.

E1 Transmit Level Test

1. Set the probe swit ch to 120 ohms.




3. O n t h e Si t e Ma st e r, p r ess t h e MODEkey, th en us e U p/Down key t o highlight E1 Testerand press

t h e ENTERkey.

4. P r e ss t h eMEAS/DISPk ey a n d t h e Vpp soft key, and use the Terminate/Bridgedsoft key to select Termi-






9. P r e ss t h eImpedancesoft key and select 120, then press the Backsoft key tw ice.


ENTERkey.

11. Set up th e Oscilloscope as follows:

(a) P ress QUIC K ME NU, then use the ME NU soft key to select Telecom.

(b) U se the Sta nda rd a rrow soft key to select None.

(c) U se the MENU soft key aga in to select S cope.

(d) Press the AUTOSET key, then set the horizontal SCALE to 1 micro second.

(e) P ress the MEASU RE key, then press the MORE soft key until pk-pk appear s.

(f) Select th e P k-P k soft key a nd record the P k-P k read ing. The specification is 4.2 to 7.2 Vp-p.

T1 Error Detection Verification

NOTE: During this test the both transmit and Receive cable should be disconnected.



2. O n t h e Si t e Ma st e r, p r ess t h e MODEkey, th en us e U p/Down key t o highlight T1 Testerand press

t h e ENTERkey.

10 Site Master MM


15/32






7. P r e ss t h eInternalsoft key, then press the Back soft key.

8. P r e ss t h eSetup Error Insert soft key, then select th e Bit soft key an d th e Burst soft key.. Enter a

number (for exam ple, 150) a nd press ENTER.

9. P r e ss t h eBacksoft key, then select th e Transmit Levelsoft key a nd s elect 0 dB.

10. P r e ss t h e MEAS/DISPkey, select BERTand select t he Start/Stop Measuresoft key.

11. P r e ss t h e Insert Errors soft key a nd observe the num ber in the Bit Errorsrow. The n umber must

ma tch th e number entered in St ep 7 above. This number mus t increase by t he number entered in

St ep 7 above every t ime the Insert Errorssoft key is pressed. For exam ple, if 150 is entered in St ep

7, the first num ber observed will be 150. The next t ime th e Insert Errorssoft key is pressed, the

number must be 300, etc.

E1 Error Detection Verification

NOTE: Disconnect all the cables from the Transmit and Receive ports during this test.



2. O n t h e Si t e Ma st e r, p r ess t h e MODEkey, th en us e U p/Down key t o highlight E1 Testerand press

t h e ENTERkey.






7. P r e ss t h eInternalsoft key, then press the Back soft key.

8. P r e ss t h eImpedancesoft key and select 120, then press the Back soft key.

9. P r e ss t h eSetup Error Insert soft key, then select th e Bit soft key then t he Burstsoft key. Ent er a num-

ber (for example, 150) and press ENTER.

10. P r e ss t h e Back soft key three times.

11. P r e ss t h e MEAS/DISPkey, select BERTand select t he Start/Stop Measuresoft key.

12. P r e ss t h e Insert Errors soft key a nd observe the num ber in the Bit Errorsrow. The n umber must

ma tch th e number entered in St ep 8 above. This number mus t increase by t he number entered in

St ep 8 above every t ime the Insert Errorssoft key is pressed. For exam ple, if 150 is entered in St ep

8, the first num ber observed will be 150. The next t ime th e Insert Errorssoft key is pressed, the

number must be 300, etc.

Site Master MM 11


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8. InstaCal Module Verification

This test verifies the performance of the Anritsu S ite Mast er Inst aC al C alibra tion Module. The Inst aC al

Module, part number ICN50, is an optional accessory for the S331D.


InstaCal Module, part number ICN50



b. Procedure




2. P r e ss t h eMODEsoft key.

3. Use the Up/Down ar row key to highlight RETURN LOSS, then press ENTER.

4. P r e ss t h eSTART CALkey. The message C ONNEC T OPE N or Inst aC al TO RF Out P ORT will

appear in the display.

5. Co n n ect t h e I n st a Ca l m od u le t o t h e RF O u t p or t a n d p r ess t h e ENTERkey.

NOTES: If this particular InstaCal module has been used to calibrate this Site Master before, the Site

Master senses the familiar InstaCal module and automatically calibrates the unit using the OSL proce-

dure.

If the Site Master senses that the characterization data for the InstaCal module connected to this Site

Master is different than the one currently stored, it will display soft key options to keep or replace the

InstaCal characterization data.

Selecting theYES soft key transfers all of the characterization data from this InstaCal module to the

Site Master. The transfer may take up to three minutes. This option is preferred if this InstaCal module

is to stay with this particular Site Master. Once completed, the data will not need to be transferredagain for this combination of Site Master and InstaCal module.

Selecting theNO soft key will temporarily transfer only the portion of the characterization data neces-

sary for this particular calibration. This transfer takes approximately 30 to 60 seconds, and will have to

be repeated every time a calibration is done using this combination of Site Master and InstaCal mod-

ule.

6. Verify that the calibration has been properly performed by checking tha t the CAL ON!message is

displayed in the upper left corner of the display.

7. Remove the Inst aC al module from the RF Out port a nd connect the 20 dB Offset to the RF Out

port.

8. Measure the return loss of the 20 dB Offset . The level should be 20 dB, 2 dB a cross th e cali-brat ed frequency range.

9. Remove the 20 dB Offset from the RF Out port a nd connect the 6 dB Offset to the RF Out port .

10. Measu re th e return loss of the 6 dB Offset. The level should be 6 dB, 1.2 dB across the cali-

brat ed frequency range.

12 Site Master MM


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9. Battery Pack Removal and Replacement

This procedure provides instructions for removing and replacing the Site Master battery pack.

NOTE: Many of the procedures in this section are generic, and apply to many similar instruments.

Photos and illustrations used are representative and may show instruments other than the Site Master.

1. With the Sit e Master sta nding upright on a st able surface, locat e the battery a ccess door (Figure4).

2. Lift up the access door ha ndle and rota te it 90 degrees counterclockwise, as illustrat ed in Figure5.

Site Master MM 13

BATTERY ACCESS DOOR

F i g u r e 4. Bat ter y Access Door L ocati on

F i g u r e 5. Rotate the Battery A ccess Door H andl e


18/32

3. Lift the door and remove, as illustrat ed in Figure6.

4. G r a sp t h e ba t t e r y la n y a r d a n d p u ll t h e ba t t e r y st r a ig h t u p a n d ou t o f t h e u n it , a s i l lu st r a t e d in F ig-

ur e7.

5. Replacement is the opposite of removal. Note the orienta tion of the bat tery conta cts, an d be sure to

insert the new ba ttery w ith th e contacts fa cing the rear of the unit (Figure8).

14 Site Master MM

F i g u r e 6. Removing th e Bat tery Access Door

F i g u r e 7. Removing the Battery

BATTERY CONTACTS

F i g u r e 8. Batt ery Ori entat i on


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10. Battery Information

The following informat ion relat es to the care and ha ndling of the Site Mast er batt ery, and NiMH bat ter-

ies in general.

The Nickel Meta l Hydr ide (NiMH) batt ery supplied w ith t he Site Ma ster is shipped in a discha rged

sta te. Before using the Sit e Master, the interna l bat tery must first be charged for th ree hours, either in

the Site Master or in the optional battery charger (Anritsu part number: 2000-1029).

Use only Anritsu a pproved batt ery packs.

Recha rge the bat tery only in the S ite Mast er or in a n Anritsu a pproved cha rger.

With a new NiMH battery, full performance is achieved after three to five complete charge and dis-

char ge cycles.

When th e Site Ma ster or the char ger is not in use, disconnect it from th e power source.

Do not charge bat teries for longer th an 24 hours; overcha rging ma y shorten bat tery life.

I f left unused a fully cha rged batt ery will discha rge itself over t ime.

Temperat ure extremes w ill affect t he ability of the ba ttery to charge: allow the ba ttery to cool down or

wa rm up a s necessary before use or cha rging.

Discharge an NiMH bat tery from time to t ime to improve battery performa nce an d bat tery life.

The batt ery can be cha rged and dischar ged hundreds of t imes, but it w ill eventually w ear out.

The bat tery ma y need to be replaced when t he operating t ime between charging becomes noticeably

shorter than normal.

Never use a da ma ged or worn out cha rger or bat tery.

St oring t he bat tery in extreme hot or cold places w ill reduce the capacity a nd lifetime of the ba ttery.

Never short-circuit the bat tery termina ls.

Do not drop, mutilat e or a t t empt to disassemble the bat tery.

Do not dispose of batteries in a fire!

Batteries must be recycled or disposed of properly. Do not place batteries in household garbage.

Always use the battery for its intended purpose only.

WARNING: This equipment is supplied with a rechargeable battery that could potentially leak

hazardous compounds into the environment. These hazardous compounds present a risk of injury or

loss due to exposure. Anritsu Company recommends removing the battery for long-term storage of the

instrument and storing the battery in a leak-proof, plastic container. Follow the environmental storage

requirements specified in the product data sheet.

Site Master MM 15


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10.1. Battery Testing Procedure

1. With the Site Mast er off and the bat tery insta lled, connect the U niversal AC Adapter to the

12.5-15VDC (1350 mA)connector. The External PowerL E D a n d t h e Battery ChargingL ED w il l l ig h t .

NOTES: If the Battery Charging LED does not light, the battery may be too low to immediately start full

charging. Leaving the unit connected to AC power for several hours may bring the battery up to a level

where full charging can begin. Turn the unit off and back on to see if the Battery Charging LED lights

indicating a full charge cycle has begun.

Charging is inhibited below 0

C and above 45

C. If the unit is too hot, the battery will not start charginguntil the unit temperature has reached 43C.

2. Disconnect the AC-DC Adapter wh en the Battery ChargingLED turns off , indicat ing the bat tery is

fully charged.


This sets th e instrument t o the factory preset sta te. Press ENTERwhen prompted to continue.

4. P r e ss t h eSYS key, followed by the STATUSsoft key. Verify t ha t the indicated bat tery char ge is

80%. If the va lue is 80%or a bove, press t he ESCAPE/CLEAR key and continue with this procedure.

If t he va lue is lower th a n 80%, a discha rge/char ge cycle may be needed to improve the ba tt ery ca-

pacity. Completely discharge t he ba ttery, as described in St eps 5 a nd 6 below, a nd then recha rge

the bat tery a s described in St eps 1 and 2. If the bat tery capacity does not increase after a dis-char ge/char ge cycle, replace t he ba tt ery.

5. P r e ss t h eSTART CALkey (to keep the S ite Ma ster from going into HOLD mode) and ma ke note of

t h e t e st s t a r t t im e.

6. When the Site Mast er display fa des and t he Site Master sw itches itself off , ma ke note of the test

stop time.

7. The total test t ime (St ep 5 to Step 6) should be 1.5 hours. If the ba ttery charge is near 80%a nd

the t ota l bat tery t est t ime is


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11. Front Panel Assembly Removal and Replacement

This procedure provides instructions for removing and replacing the Site Master front panel assembly.

With t he front pa nel assembly removed, the LC D display, keypad P CB , keypad m embrane, and m ain

P CB assemblies can be removed a nd replaced.

NOTE: Many of the procedures in this section are generic, and apply to many similar instruments.

Photos and illustrations used are representative and may show instruments other than the Site Master.

1. Remove the externa l power supply, if insta lled, and remove the bat tery from the unit .

2. P la ce t h e Si t e Ma st e r f a ce u p on a st a ble w or k su r fa ce.

3. Remove the four rubber corner bumpers by car efully lift ing and sliding the bumpers off of the case

corners (Figure 9).

4. With t he bumpers removed, the access holes for the cas e screws a re revealed. Use a P hillips screw-

driver to remove the four screws securing th e tw o halves of the S ite Mast er case together.

5. Ca refully lift up on the right side (as viewed from the front) of the front ha lf of the case and begin to

se pa r a t e t h e t w o h a lves.

CAUTION

Do not force or pull the two halves of the case apart completely, as there are delicate cables attached

between the two halves that must be disconnected first.

6. If the unit is equipped wit h a monochrome display, carefully depress the lat ch tab a nd disconnect t he

monochrome LC D d isplay cable from J 3 on t he ma in P CB .

or

If t he unit is equipped wit h a color display, ca refully disconnect t he display cable from J 14 on the

m a i n P C B .

7. Ca refully disconnect the keypad interface cable from J 4 on the ma in PC B.

Site Master MM 17

F i g u r e 9. Removing the Corner Bu mpers


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8. Ca refully disconnect the LCD display backlight cable from J 1 on the ma in PC B.

9. Remove the front pan el assembly.

10. Reverse the above steps to replace the front panel assembly.

NOTE: The corner bumpers only mount one way. That is, the raised area inside one end of the bumper

(Figure10) is made to conform to the contour of the front cover only.

18 Site Master MM

RAISED AREA

F i g u r e 1 0. Corner Bumper Detail

J4

J1

J14

F i g u r e 1 1. Site Master Fr ont Panel Cabl e Connecti ons


23/32

12. LCD Assembly Replacement

This procedure provides instructions for removing and replacing the Liquid Crystal Display (LCD) once

the front panel assembly ha s been separa ted from the Site Mast er.

1. Remove the front panel assembly as directed in section 11.

2. P lace the front panel assembly face down on a protected work surface.

3. Remove the 14 P hillips screws tha t a t ta ch the backing plat e to the front pan el assembly.

4. Release the LC D display cable from the reta ining clip on the front panel backing plat e.

5. Remove the front pa nel backing plate, carefully feeding the LCD ca ble through the a ccess hole to

avoid damage to the cable or connector.

6. Remove the rubber cushion pad from the LCD assembly an d remove the assembly.

7. Reverse the above steps to insta ll the replacement assembly.

Site Master MM 19

FRONT PANEL

BACKING PLATE

LCD CABLE

RETAINING CLIP

F i g u r e 1 2. Front Panel Backi ng Plate


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13. Key Pad PCB Replacement

This procedure provides instructions for removing and replacing the key pad PCB.


2. P lace the front panel assembly face down on a protected work surface.

3. Remove the 14 P hillips screws tha t a t ta ch the backing plat e to the front panel assembly.

4. Release the LC D display cable from the reta ining clip on the front panel backing plat e (Figure12).

5. Remove the front pa nel backing plate, carefully feeding the LCD ca ble through the a ccess hole to

avoid damage to the cable or connector.

6. Re m ove t h e ru bber cu sh ion p a d f r om t h e k ey p a d P CB a n d r e m ove t h e PCB .

7. Reverse the above steps to insta ll the replacement assembly.

20 Site Master MM

KEYPAD PCB

F i g u r e 1 3. Front Panel Keypad PCB L ocati on


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14. Key Pad Membrane Replacement

This procedure provides instructions for replacing the key pad membrane.


2. Remove the key pad PC B a s directed in section 13.

3. Remove the keypad membra ne by gently pulling the membran e up an d out of the holes in the front

panel.

4. Reverse the above steps to insta ll the replacement membra ne.

Site Master MM 21

KEYPAD MEMBRANE

F i g u r e 1 4. Front Panel Keypad Membr ane


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15. Main PCB Assembly Replacement

This procedure provides instructions for replacing t he ma in P CB assembly w ith t he connector panel a t-

tached.


2. Disconnect the bat tery connector from J 7 on the main P CB .

3. Disconnect the semi-rigid coaxia l ca ble from the RF In connector on the connector panel.

4. Remove the three PCB mounting screws an d lift the Control PC B a ssembly with t he connector panel

at ta ched slightly.

5. Ca r e fu lly r e a ch be t w e en t h e Ma in P CB a n d t h e SPA PCB a n d d iscon n e ct t h e ca bles f r om J 2 a n d J 4

on t h e SPA PCB .

6. R em ov e t h e M a i n P C B .

7. Remove the three .25 standoffs and four P hillips screws an d remove the Spectrum Analyzer PC B.

8. Re ver se t h e a bove st e ps t o in st a l l t h e n e w m a in P CB .

NOTE: The main PCB connector panel fits into grooves in the two halves of the case. Make sure the

panel is correctly aligned with the grooves before reassembling the two halves together.

22 Site Master MM

PCB MOUNTINGSCREWS (3)

BATTERYCONNECTOR

RF INCONNECTOR

F i g u r e 1 5. M a i n P C B ( sh o w n w i t h o p t i o n a l T1 / E 1 P C B i n s t a l l ed )

J2J4

F i g u r e 1 6. Spectr um Anal yzer PCB


27/32

16. Option 5 Power Monitor PCB Assembly Replacement

This procedure provides instr uctions for repla cing the P ower Monitor P CB Assembly.

1. Remove the front pa nel assembly as directed in on page 17, Front P an el Assembly Removal and

Replacement.

2. Remove the entire Main P CB ass embly from the bottom case as directed on page22.

3. On the upper right corner, locat e and remove the nut tha t secures the blank plat e to the connec-

tor panel.

4. Ca refully remove the blank plate from the connector panel.

5. Inst all th e new connector plate (p/n 61536) to the connector pan el and secure it w ith t he nut t ha t

wa s removed in st ep 4.

6. Use a sha rp knife to cut a hole along the opening of the new connector plat e.

7. Inst all th e three sta ndoffs (p/n 785-405) to the ma in boar d on the side tha t fa ces the Front P an el

a ssembly a nd secure th em w ith thr ee Ph illips screw s (p/n 900-720) from the side t ha t fa ces the

bottom case.

8. Ins ta ll the Option 5 PC B a ssembly (p/n 63066-3) to the ma in board. C a refully align J 1 to J 6 of

the ma in boar d wh en installing. Refer to Figure17.

9. Secure the Option 5 P CB ass embly to the sta ndoffs using the last thr ee P hillips screws.

10. Ca refully push t he DI N connector t hrough the opening on th e connector pa nel and secure it w ith

t he n ut s (p/n 900-326) supplied .

Site Master MM 23

F i g u r e 1 7. Power M onit or PCB Assembl y Repl acement


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17. Option 50 T1/E1 Tester PCB Assembly Replacement

This procedure provides in str uctions for replacing th e T1/E1 Tester P CB a ssembly.

1. Remove the front pa nel assembly as directed in on page 17, Front P an el Assembly Removal and

Replacement.

2. Remove the entire Main P CB ass embly from the bottom case as directed on page22.

3. Remove the six T1/E1 P CB mounting screws a nd carefully lift the P CB assembly disconnecting

J 2 (T1/E 1 P CB ) from J 6 (Main P CB ).

4. After J 2 and J 6 (from the under side of the P CB ) have been disconnected carefully lift up t he bot-

tom a nd pull out t he P CB clea ring t he T1/E 1 connector int erface.

5. Reverse the above steps to insta ll the new T1/E1 P CB .

24 Site Master MM

F i g u r e 1 8. T 1/ E1 Tester PCB


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18. Accessories and Replaceable Parts

Accessories and replaceable parts for the Site Master S331D are listed below.

Site Master MM 25

Accessories

Part Number Description Qty

10580-00079 Users Guide, Site Master S33xD 1

10580-00100 Programming Manual, Site Master S33xD (disk only) 1

2300-347 Handheld Software Tools 1

40-187-R Power Supply 1

2000-1029 Battery Charger 1

22N50 Open/Short, N Male 1

SM/PL Precision Termination, N Male 1

806-62 Automotive Power Adapter 1

806-16 Bantam Plug to Bantam Plug Cable Assembly 1

806-116 Bantam Plug to BNC Male Cable Assembly, 8 ft 1

806-117 Two Bantam Plugs to RJ48 Cable Assembly, 8 ft 1

800-441 Serial Interface Cable Assembly 1

65717 Soft Carrying Case 1

Replaceable Parts


510-87 N Male Connector 2

15-102 Monochrome Liquid Crystal Display Assembly 1

15-123 TFT Color Liquid Crystal Display Assembly 1

633-27 Rechargeable Battery, NiMH 1

ND62289 Main PCB Assembly, S331D, Serial Number404999 1

ND62278 Main PCB Assembly, S331D, with Option 29, Serial Number404999 1

ND61829 Main PCB Assembly, S331D, Serial Number 405001 through 538117 1

ND63391 Main PCB Assembly, S331D, with Option 29, Serial Number 405001 through 538117 1

ND64435 Main PCB Assembly, S331D, with Option 31, Serial Number 405001 through 538117 1

ND64436 Main PCB Assembly, S331D, with Options 29, 31, Serial Number 405000 through 538118 1

ND65773 Main PCB Assembly, S331D, Serial Number538118 1



ND65776 Main PCB Assembly, S331D, with Options 29, 31, Serial Number538118 1

ND68111 Main PCB Assembly, S331D, with Options 2 and 16 1

ND68112 Main PCB Assembly, S331D, with Options 2, 16 and 29 1

ND68113 Main PCB Assembly, S331D, with Options 2, 16 and 31 1

ND68493 Main PCB Assembly, S331D, with Options 2, 16, 29 and 31 1


30/32

26 Site Master MM

67199-3 Keypad PCB Assembly 1

46649-4 Membrane Keypad, Main, with Contrast symbol 1

46649-6 Membrane Keypad, Main, without Contrast symbol 1

Hardware


900-861 Pan Head Screw, 4-20, 0.365 15

900-791 Screw, 2-56, 0.375 77

900-720 Screw, 4-40, 0.187 5

900-326 Kep Nut, 4-40, 0.187 3

790-18 M-F Standoff, 4-40, 0.375, Hex 2

785-927 M-F Standoff, 4-40, 0.625 3

785-929 M-F Standoff, 4-40, 0.265 3

761-79 Cap Vinyl, Black, round 2

Case Parts


46652-3 Top Case only (for units with Monochrome LCD Display) 1

61440-1 Top Case only (for units with TFT Color LCD Display) 1

46653-3 Bottom Case only 1

48231-3 Battery Door 1

790-509790-51048241

Battery Door Latch (3 pieces)1

790-511 Door Lock Receptacle 1

46655 Case Corner Bumpers 4

46662 LCD Retainer Plate 1

48241 Foam, LCD Corners 9

48278 Foam, LCD Window 1

46659 Foam, LCD Backing 1

46661 Foam, Keypad Backing 1


31/32

19. Customer Service

To loca te th e nearest Anrit su C ust omer Service Center, please refer to the Anritsu w eb page:

ht tp://w w w.an rit su.com/Cont a ct.a sp

Site Master MM 27


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Documents

Manual de Mantenimiento S331D