HP TM 11-6625-2779-14&P manual A4 Contd

Page 59

Section VI

 

 

 

 

Model 3555B

 

 

 

Table 6-1. Replaceable Parts (Cont'd)

 

 

 

 

 

 

 

 

 

 

REFERENCE

-hp-

TQ

DESCRIPTION

MFR.

MFR. PART NO.

 

DESIGNATOR

PART NO.

 

 

 

 

 

 

 

 

 

 

 

 

A4 (Cont'd)

 

 

 

 

 

 

C31

0180-0228

 

C: fxd Ta elect 22uF +/-10% 15 vdcw

37942

TAS226K015P1C

 

C32

0180-0291

 

C: fxd Ta elect 1uF +/-10% 35 vdcw

56289

150D105X9035A2-DYS

C33

0180-0387

1

C: fxd Ta elect 47uF +/-5% 20 vdcw

37942

TAS476J020P1F

 

CR1 thru CR5

1901-0026

 

Diode: Si 100 wiv 12pF 100mA

24446

SS410

 

Q1,Q2

1854-0071

16

TSTR: Si NPN 2N3391

01296

SKA1124

 

Q3

1853-0086

6

TSTR: Si PNP 2N5087

04713

SPS-3322

 

Q4,Q5

1854-0071

 

TSTR: Si NPN 2N3391

01296

SKA1124

 

Q6

1853-0086

 

TSTR: Si PNP 2N5087

04713

SPS-3322

 

Q7,Q8

1854-0071

 

TSTR: Si NPN 2N3391

01296

SKA1124

 

Q9

1853-0086

 

TSTR: Si PNP 2N5087

04713

SPS-3322

 

Q10 thru Q12

1854-0071

 

TSTR: Si NPN 2N3391

01295

SKA1124

 

Q13

1853-0086

 

TSTR: Si PNP 2N50B7

04713

SPS-3322

 

Q14 thru Q16

1854-0071

 

TSTR: Si NPN 2N3391

01295

SKA1124

 

Q17

1853-0086

 

TSTR: Si PNP 2N5087

04713

SPS-3322

 

Q18 thru Q20

1854-0071

 

TSTR: Si NPN 2N3391

01295

SKA1124

 

Q21

1853-0086

 

TSTR: Si PNP 2N5087

04713

SPS-3322

 

Q22

1854-0071

 

TSTR: Si NPN 2N3391

01296

SKA1124

 

R1

0757-0450

2

R: fxd et flm 22.1 kilohms +/-1% 118W

75042

CEA

obd

R2

0038-4412

1

R: fxd met flm 17.4 kilohms +/-1% 1/8W

91637

MF-1/10-32

obd

R3

2100-0406

1

R: var carbon comp 5 kilohms +/30% 4 sec

71590

Series 5 Type 70-4

 

R4

0698-7373

1

R: fxd met flm 98.941 kilohms +/-0.1% 1/8W

91637

CMF-1/10-32

obd

R5,R6

0698-7374

2

R: fxd met flm 217Jkilohms +/-0.1% 1/8W

91637

CMF-1/10-32

obd

R7(A/B/C)

1810-0027

5

R: carbon flm network 2X1OOK 10 kilohms +/-10%

56289

178C5

 

R8

0698-7372

1

R: fxd met flm 108.94 kilohms +/-0.1% 1/8W

91637

CMF-1/10-32

obd

R9

0698-7376

1

R: fxd met flm 11.397 kilohms +/-0.1% 1/8W

91637

CMF-1/10-32

obd

R10

0698-6313

5

R: fxd met flm 20 kilohms +/-0.1% 118W

91637

CMF-1/10-32

obd

R11

0698-7375

 

R: fxd met flm 28.640 kilohms +/-0.1% 1/8W

91637

CMF-1/10-32

obd

R12,R13

0757-0476

2

R: fxd met flm 301 kilohms +/-1% 1/8W

14674

C4

obd

R14

0684-6821

1

R: fxd comp 6800 ohms +/-10% 1/4W

01121

CB6821

 

R15

0604-4731

 

R: fxd comp 47 kilohms +/-10% 11/4W

01121

C84731

 

R16*

0698-3557

1

R: fxd met flm 806 ohms +/-1% 1/8W

14674

C4

obd

R17

0698-3519

1

R: fxd met flm 12.4 kilohms +/-1% 1/8W

91637

MF-1/10-32

obd

R18*

0757-0443

1

R: fxd met flm 11 kilohms +/-1% 1/8W

14674

C4

obd

R19

 

 

Not assigned

 

 

 

R20

0698-7375

 

R: fxd met flm 28.640 kilohms +/-0.1% 1/8W

91637

CMF-1/10-32

obd

R21(A/B/C)

1810-0027

 

R: carbon flm network 2X100K 10 kilohms +/-10%

56289

178C5

 

R22

07570451

1

R: fxd met flm 24.3 kilohms +/-1% 1/8W

14674

C4

obd

R23

0757-0450

 

R: fxd met flm 22.1 kilohms +/-1% 1/8W

75042

CEA

obd

R24

0698-0043

 

R: fxd met flm 20 kilohms +/4.1% 1/8W

91637

CMF-1/10-32

obd

R25

0638-1407

1

R: fxd met flm 44.2 kilohms +/-1% 1/8W

14674

C4

obd

R26(A/B/C)

1810-0027

 

R: carbon flm network 2X100K 10 kilohms +/-10%

56289

178C5

 

R27

0698-7365

1

R: fxd me flm 13.394 kilohms +/-0.1% 1/8W

91637

CMF-1/10-32

obd

R28

0038 6043

 

R: fxd met flm 20 kilohms +/4).1%

91637

CMF-1/1032

obd

R29

0757-0465

1

R: fxd met flm 100 kilohms +/-1% 1/8W

14674

C4

obd

R30,R31

0684-1051

3

R: fxd comp 1 megohm +/-10% 1/4W

01121

C81051

 

R32

0757-0280

2

R: fxd met flm 1 kilohm +/-1% 1/8W

91637

CMF-1/10-32

obd

R33

0757-0442

 

R: fxd met flm 10 kilohm +/-1% 1/8W

91637

MF-1/10-32

obd

R34

0757-0448

1

R: fxd met flm 1&2 kilohms +/-1% 1/8W

91637

MF-1/10-32

obd

R35,R36

0757-0472

 

R: fxd met flm 200 kilohms +/-1% 1/8W

75042

CEA

obd

R37,R38

0698-7366

2

R: fxd met flm 109.64.kilohms +/-0.1% 1/8W

91637

CMF-1/10-32

obd

R39(A/B/C)

1810-0027

 

R: carbon flm network 2X100K 10 kilohms +/-10%

56289

178C5

 

R40

0638-0043

 

R: fxd met flm 20 kilohm +/-.1%

91637

CMF-1/10-32

obd

R41

0698-7367

1

R: fxd met flm 78.028 kilohms +-0.1% 1/8W

91637

CMF-1/1032

obd

R42,R43

0698-7369

2

R: fxd met flm 73803 kilohms +/-0.1% 1/8W

91637

CMF-1/10-32

obd

R44(A/B/C)

1810-0027

 

R: carbon flm network 2X100K 10 kilohms +/-10%

56289

178C5

 

R45

0698-7368

1

R: fxd met flm 36.901 kilohms +/-0.1% 1/8W

91637

CMF-1/10-32

obd

R46

0698-6943

 

R: fxd met flm 20 kilohms +/-0.1%

91637

CMF-1/10-32

obd

6-6

Page 58 Page 60
Image 59
Page 58 Page 60
Contents HEADQUARTERS, Department of the Army NSN Reporting Errors and Recommending ImprovementsTM 11-6625-2779-14&P Technical Manual Headquarters Department of the ArmyReplaceable Parts Iii List of IllustrationsList of Tables Scope Maintenance Forms, Records, and ReportsSection Introduction Reporting Equipment Improvement Recommendations EIR Administrative StorageDestruction of Army Electronics Materiel Items Comprising an Operable Equipment Voice Frequency Level Measurements 20Hz to 20kHz SpecificationsSection General Information Introduction SectionBAL Modification Accessory Equipment SuppliedAccessory Equipment Supplied Instrument IdentificationBattery Section Installation InspectionWarranty Exception Power RequirementsCover Removal Installation and Removal of BatteryOperating Instructions Controls Connectors IndicatorsBattery SectionFront Panel Controls, Indicators, and Connectors Front, Side and Rear Pane Side Panel Controls and Connectors Level Measurements Level and Noise MeasurementsPage Noise Measurement Applications Recorder CompatibilityRecorder Compatibility Chart Crosstalk Correction Factor Identifying Noise CharacteristicsTransmission Loss Measurements Crosstalk MeasurementsMeasurements in DBC 135 BAL Reinstall the set in its case0dBm Input jacks are connected in parallel. If a 600 ohmLevel Measurement Noise Metallic Measurements Step ProcedureTransmission Loss Measurement Noise-to-Ground Measurements Balance MeasurementRecorder Calibration ExampleSection Theory of Operation Introduction Block Diagram DescriptionSimplified Dial BAT Function Detailed Circuit DescriptionRange Attenuator A2 Input Amplifier A3. Schematic NoPads Used Setting AttenuationFILTERS. Schematic No Range AttenuatorKHz Flat and Program Weighting Curves C-MSG and 1SkHz Flat Weighting Curves DETECTOR. Schematic No Meter AMPLIFIER. Schematic NoPower Supply and Series Regulator Schematic No BAL Conversion Section Maintenance IntroouctionInstrument Recommended Type Required Characteristics Model Factory Selected ValuesTMS, Term Performance ChecksLevel Accuracy Checks Function CARRIER, 75 Unbal30Hz to 1MHz 100Hz to 600kHz 1MHz to 3MHz Unbal Carrier Accuracy CheckRange Frequency20Hz to 20kHz 40Hz to 15kHz 100Hz to 20kHz 100Hz to 15kHz Return Loss CheckReturn Loss Test Set-Up MSG dBm 3kHz Flat dBm 15kHz Flat dBm Program dBm Filter Response ChecksFilter Response Checks Input TMS Brdg Input BalanceBridging Loss TMS BrdgAttenuator Calibration Adjustment and Calibration ProcedurePower Supply Check Unbal CalibrationBalance Check Frequency Response AdjustmentCommon Mode Adjustment Filter Calibration Assembly RemovalTroubleshooting Procedures Troubleshooting Tree Dial BAT Front Panel Trouble AnalysisFront Panel Trouble Analysis Contd Front Panel TroubleshootingFunction Troubleshooting Range TroubleshootingDefective Function Troubleshooting Input AmplifierFilter Troubleshooting Troubleshooting the Meter Amplifier and DetectorBrdg Term Function Switch Resistance ValuesFunction Input Jacks DIAL/AC MON Jacks Tip to Ring Tip to Ground Ring to GroundRange dBm Pin 1 to Pin 2 to 11. Factory Selected Values10. Resistance Checks Carrier 135 BAL Level Accuracy Check Performance Check Test CardDescription Check Carrier 75 Unbal Level Accuracy CheckCarrier 600 BAL Level Accuracy Check Performance Check Test Card ContdBridging Loss Check Return Loss CheckFilter Response Checks MSG ProgramOrdering Information Section Replaceable Parts Introduction03555-66507 PC Board Assy function Replaceable Parts03555-66508 Board Assy amplifier Replaceable Parts ContdA3 Contd 03555-66506 PC Board Assy filter A4 Contd Chassis Mounted Components Miscellaneous Chassis Mounted Components ContdMiscellaneous Contd National Stock Number Replacement National Part Stock Number FscmPart Number National Stock Number Cross Reference Index FscmPage Model 3555B Appendix a Code List of Manufacturers Reference Designations Circuit DiagramsFunctional Block Diagram Schematic DiagramsSection Model 3555B 7-4 Functional Block Diagram7-6 A1 Function Assembly Schematic and Component Location7-8 7-10 A4 Filter Schematic and Component Location11/7-12 References Appendix aColumn Entries Maintenance Allocation Section I. Introduction GeneralMaintenance Function Appendix BRemarks Sec Tool and Test Equipment Requiremen ts SecAudio Level Meter TA-885/U REF Code Number TM 11-7725-2779-14&PTransmission and Noise Measuring SET Appendix CManual Backdating Changes Government Printing Office 1980-603-128/66 Delete CR6 across M1Active Army General, United States ArmyChief of Staff Major General, United States Army Adjutant GeneralPage PIN
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