HP TM 11-6625-2779-14&P manual Replaceable Parts Contd, Board Assy amplifier

Page 56

Model 3555B

 

 

 

 

 

Section VI

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

REFERENCE

-hp-

TQ

 

DESCRIPTION

MFR.

MFR. PART NO.

 

DESIGNATOR

PART NO.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A2 (Cont'd)

 

 

 

 

 

 

 

R6

0683-1805

1

 

R: fxd comp 18 ohms +/-5% 1/4W

01121

CB1805

 

R7

0698-4342

1

 

R: fxd met flm 90 kilohms +/-0.1% 1/8W

91637

MF-1/10-32

obd

R8

0698-4339

1

 

R: fxd met flm 11.11 kilohms +/-0.1% 1/8W'

91637

MF-1/10-32

obd

R9

0698-5095

1

 

R: fxd carbon comp 12 ohms +/-10% 1/2W

01121

CB1201

 

R10

0698-7328

1

 

R: fxd met flm 68.38 kilohms +/-0.1% 1/8W

91637

MF-1/10-32

obd

R11

0698-7331

1

 

R: met flm 46.28 kilohms +/-0.1% 1/8W

91637

MF-1/10-32

obd

R12

 

 

 

Not assigned

 

 

 

R13

0698-3150

1

 

R: fxd met flm 2.37 kilohms +/-1% 1/8W

91637

MF-1/1O 2

obd

R14

0698-3264

1

 

R: fxd met flm 11.8 kilohms +/-1% 1/8W

14674

C4

obd

S1

3100-1791

1

 

Switch: rotary range

76854

1332

obd

A3

03555-66508

1

 

Board Ass'y: amplifier

-hp-

 

 

C1*

0160-0763

2

 

C: fxd mica 5pF +/-10%

72136

RDM15COFOKSS

 

C2

0180-0197

5

 

C: fxd Ta 2.2uF +/-10% 20 vdcw

56289

150D225X902oA2-DYS

C3

0180-1746

4

 

C: fxd Ta elect 15uF +/-10% 20 vdcw

56289

150D156X9020B2-DYS

C4

0160-2964

6

 

C: fxd cer 0.01uF +80% -20% 25 vdcw

72982

5835000.Y5UO-10 32

 

C5

0160-0205

 

 

C: fxd mica 10pF +/-5%

72136

RDM15C100J58S

 

C6,C7

0160-0378

2

 

C: fxd mica 27pF +/-5%

72136

RDM15E27OJ5S

 

C8

0121-0105

 

 

C: var 9-35pF

72982

538400694D

 

C9

0140-0196

1

 

C: fxd mica 150pF +/-5%

72136

RDM15F151J3C

 

C10

0180-0228

10

 

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

37942

TAS226K015P1C

 

C11

0180-0106

1

 

C: fxd Ta 60uF +/-20% 6 vdcw

56289

90803

 

C12 thru C14

0160-2964

 

 

C: fxd cer 0.01uF +80% -20% 25 vdcw

72982

5835000)Y5U-1032

 

C15*

0180-0228

 

 

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

37942

TAS226K015P1C

 

C16

0180-0393

3

 

C: fxd Ta elect 39uF +/-10% -10 vdcw

37942

TAS396KO10PIC

 

C17

0160-2964

 

 

C: fxd cer 0.01uF +80% -20% 25 vdcw

72982

5835000.Y5UO-1032

 

C18

 

 

 

Not assigned

 

 

 

C19

0180-0197

 

 

C: fxd Ta 2.2uF +/-10% 20 vdcw

56289

150D225X9020A2-DYS

C20

0160-0763

 

 

C: fxd mica 5pF +/-10%

72136

RDM15C050K5SS

 

C21

0180-1702

1

 

C: fxd Ta elect 180uF +/-20% 6 vdcw

37942

 

obd

C22

0160-2964

 

 

C: fxd cer 0.01uF +80% -20% 25 vdcw

72982

5835-000-Y5U0-1032

 

C23

0180-0197

 

 

C: fxd Ta 2.2uF +/-10% 20 vdcw

56289

150D225X9020A2-DYS

C24

0180-0137

1

 

C: fxd Ta 100uF +/-20% 10 vdcw

56289

150D107X0010R2-DYS

C25

0180-0197

 

 

C: fxd Ta 2.2uF +/-10% 20 vdcw

56289

150D225X9020A2-DYS

C26

0150-0011

1

 

C: fxd TiO2 1.5pF +/-20% 500 vdcw

78488

Type GA

obd

C27

0180-0393

 

 

C: fxd Ta elect 39uF +/-10% -10 vdcw

37942

TAS396KO10P1C

 

C28

0180-0196

1

 

C: fxd Ta 56uF +/-10% 15 vdcw

37942

TAS566K015P F

 

C29

0180-0374

1

 

C: fxd Ta elect 1OuF +/-10% 20 vdcw

37942

TAS106K020F1C

 

C30 thru C32

0180-0228

 

 

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

37942

TAS226K015PlC

 

C33

0180-0197

 

 

C: fxd Ta 2.2uF +/-10% 20 vdcw

56289

150D225X9020A2-DYS

C34

0180-1794

1

 

C; fxd Ta elect 22uF +/-10% 35 vdcw

56289

150D226X9035R2-DYS

C35 thru C37

0180-1746

 

 

C: fxd Ta elect 15uF +/-10% 20 vdcw

56289

150D156X9020B2-DYS

CR1,CR2

1901-0376

2

 

Diode: Si 35 wiv 2pF

07933

RD5288

 

CR3,CR4

1902-3030

4

 

Diode: zener 3.01V +/-5% 400mW 20mA

04713

SZ10939-32

 

CR5 thru CR7

1901-0040

11

 

Diode: Si 30 wiv 2pF 30mA 2ns

07263

FDG1O88

 

CR8

1902-0761

3

 

Diode: zener 6.2V +/-5% 400mW 7.5mA

04713

Type 1N821

 

CR9

1902-3030

 

 

Diode: zener 3.01V +/-5% 400mW 20mA

04713

SZ1Q939-32

 

CR10

1901-0040

 

 

Diode: Si 30 wiv 2pF 30mA 2ns

07263

FDG1OB8

 

CR11

1902-3030

 

 

Diode: zener 3.01V +/-5% 400mW 20mA

04713

SZ10939-32

 

CR12,CR13

1901-0040

 

 

Diode: Si 30 wiv 2pF 30mA 2ns

07263

FDG1088

 

CR14

1902-0761

 

 

Diode: zener 6.2V +/-5% 400mW 7.5mA

04713

Type 1N821

 

CR15,CR16

1901-0040

 

 

Diode: Si 30 wiv 2pF 30mA 2ns

07263

FDG1088

 

CR17

1901-0025

7

 

Diode: Si 100 wiv 12pF 10mA

24446

SS410

 

CR18,CR19

1901-0040

 

 

Diode: Si 30 wiv 2pF 30mA 2ns

07263

FDG10O88

 

 

 

 

 

 

 

 

 

6-3

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Contents HEADQUARTERS, Department of the Army Reporting Errors and Recommending Improvements TM 11-6625-2779-14&PTechnical Manual Headquarters Department of the Army NSNReplaceable 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 Specifications Voice Frequency Level Measurements 20Hz to 20kHzSection Section General Information IntroductionAccessory Equipment Supplied Accessory Equipment SuppliedInstrument Identification BAL ModificationSection Installation Inspection Warranty ExceptionPower Requirements BatteryInstallation and Removal of Battery Cover RemovalControls Connectors Indicators BatterySection Operating InstructionsFront Panel Controls, Indicators, and Connectors Front, Side and Rear Pane Side Panel Controls and Connectors Level and Noise Measurements Level MeasurementsPage Noise Measurement Recorder Compatibility ApplicationsRecorder Compatibility Chart Identifying Noise Characteristics Transmission Loss MeasurementsCrosstalk Measurements Crosstalk Correction FactorMeasurements in DBC Reinstall the set in its case 0dBmInput jacks are connected in parallel. If a 600 ohm 135 BALStep Procedure Level Measurement Noise Metallic MeasurementsNoise-to-Ground Measurements Balance Measurement Recorder CalibrationExample Transmission Loss MeasurementBlock Diagram Description Section Theory of Operation IntroductionDetailed Circuit Description Simplified Dial BAT FunctionInput Amplifier A3. Schematic No Range Attenuator A2Setting Attenuation FILTERS. Schematic NoRange Attenuator Pads UsedKHz Flat and Program Weighting Curves C-MSG and 1SkHz Flat Weighting Curves Meter AMPLIFIER. Schematic No DETECTOR. Schematic NoPower Supply and Series Regulator Schematic No Section Maintenance Introouction Instrument Recommended Type Required Characteristics ModelFactory Selected Values BAL ConversionPerformance Checks Level Accuracy ChecksFunction CARRIER, 75 Unbal TMS, TermUnbal Carrier Accuracy Check RangeFrequency 30Hz to 1MHz 100Hz to 600kHz 1MHz to 3MHzReturn Loss Check 20Hz to 20kHz 40Hz to 15kHz 100Hz to 20kHz 100Hz to 15kHzReturn Loss Test Set-Up MSG dBm 3kHz Flat dBm 15kHz Flat dBm Program dBm Filter Response ChecksFilter Response Checks Input Balance Bridging LossTMS Brdg Input TMS BrdgAdjustment and Calibration Procedure Power Supply CheckUnbal Calibration Attenuator CalibrationBalance Check Frequency Response AdjustmentCommon Mode Adjustment Filter Calibration Assembly RemovalTroubleshooting Procedures Troubleshooting Tree Front Panel Trouble Analysis Dial BATFront Panel Troubleshooting Function TroubleshootingRange Troubleshooting Front Panel Trouble Analysis ContdTroubleshooting Input Amplifier Filter TroubleshootingTroubleshooting the Meter Amplifier and Detector Defective FunctionFunction Switch Resistance Values Function Input Jacks DIAL/AC MON JacksTip to Ring Tip to Ground Ring to Ground Brdg TermRange dBm Pin 1 to Pin 2 to 11. Factory Selected Values10. Resistance Checks Performance Check Test Card Description CheckCarrier 75 Unbal Level Accuracy Check Carrier 135 BAL Level Accuracy CheckPerformance Check Test Card Contd Carrier 600 BAL Level Accuracy CheckReturn Loss Check Filter Response Checks MSGProgram Bridging Loss CheckSection Replaceable Parts Introduction Ordering InformationReplaceable Parts 03555-66507 PC Board Assy functionReplaceable Parts Contd 03555-66508 Board Assy amplifierA3 Contd 03555-66506 PC Board Assy filter A4 Contd Chassis Mounted Components Chassis Mounted Components Contd MiscellaneousMiscellaneous Contd Replacement National Part Stock Number Fscm Part Number National Stock Number Cross Reference IndexFscm National Stock NumberPage Model 3555B Appendix a Code List of Manufacturers Circuit Diagrams Functional Block DiagramSchematic Diagrams Reference DesignationsSection Model 3555B Functional Block Diagram 7-4A1 Function Assembly Schematic and Component Location 7-67-8 A4 Filter Schematic and Component Location 7-1011/7-12 Appendix a ReferencesMaintenance Allocation Section I. Introduction General Maintenance FunctionAppendix B Column EntriesTool and Test Equipment Requiremen ts Sec Remarks SecAudio Level Meter TA-885/U TM 11-7725-2779-14&P REF Code NumberTransmission and Noise Measuring SET Appendix CManual Backdating Changes Delete CR6 across M1 Government Printing Office 1980-603-128/66General, United States Army Chief of StaffMajor General, United States Army Adjutant General Active ArmyPage PIN
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