HP TM 11-6625-2779-14&P manual Chassis Mounted Components

Page 60

Model 3555B

 

 

 

 

 

Section VI

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

REFERENCE

-hp-

TQ

 

DESCRIPTION

MFR.

MFR. PART NO.

 

DESIGNATOR

PART NO.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A4 (Cont'd)

 

 

 

 

 

 

 

R47

0698-7370

1

 

R: fxd met flm 17.579 kilohms +/-0.1% 1/8W

91637

CMF-1/10-32

obd

R48

0684-1051

 

 

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

01121

CB1051

 

R49

0684-1021

 

 

R: fxd comp 1000 ohms +/-10% 1/4W

01121

CB1021

 

 

03565-60104

1

 

Chassis Ass’y: power supply

-hp-

 

 

 

 

 

 

CHASSIS MOUNTED COMPONENTS

 

 

 

BT1

1420-0026

1

 

Battery: 45V

83740

No. 482

 

C1

0180-2230

1

 

C: fxd A1 elect 150uF - 10% + 100% 200 vdcw

56289

62D10046-DFP

 

C2

0180-0149

1

 

C: fxd A1 elect 65uF 60 vdcw

hp-

 

 

C3

0180-0393

 

 

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

37942

TAS396K010P1C

 

C4*

0160-0987

1

 

C: fxd mica 12pF +/-5%

72136

RDM15C120J5S

 

C5

0150-0023

1

 

C: fxd cer 2000oF +/-20% 1000 vdcw

56289

20C295A2-CDH

 

C6

0160-0195

1

 

C: fxd cer 1000 pF 20% 250 vac

56289

19C251A1-CDH

 

CR1-4

1901-0025

4

 

Diode: Si 100 wiv 12pF 100mA

24446

SS410

 

CR6

1901-0040

1

 

Diode: Si 30 V 50 mA

-hp-

 

 

DS1,DS2

2140-0298

2

 

Neon lamp

74276

A230

 

F1

2110-0320

2

 

Fuse: 0.15A 125V Slo-Blo

71400

MDL 15/100

 

 

1400-0085

2

 

Holder: fuse

75915

342004

 

J1

1251-2357

1

 

Connector: AC power cord receptacle

82389

EAC-301

 

J2

1251-1900

4

 

Jack: telephone

82389

22A

obd

J3

1200-0163

1

 

Receptacle: 5 pin

74868

78PCG5

 

J4

1251-1144

1

 

Jack: telephone

82389

MT-342B

 

J5

1251-1143

 

 

Jack: telephone

82389

MT-332B

 

J6,J7

1251-0065

4

 

Jack: telephone

82389

MT-331

 

J8,J9

1510-0084

2

 

Binding post: red

-hp-

 

 

J10

1510-0087

1

 

Binding post Ass'y

-hp-

 

 

J11

1510-0531

1

 

Binding post Ass'y

-hp-

 

 

J12,J13

1251-0065

 

 

Jack: telephone

82389

MT-331

 

J14

1251-1143

 

 

Jack: telephone

82389

MT-332B

 

J17

1250-1053

1

 

Jack: coaxial

70674

CJ-1010

 

J18

1251-1143

 

 

Jack: telephone

82389

MT-332B

 

L1

9100-1390

1

 

Inductor: audio

-hp-

 

 

L2

9140-0088

1

 

Inductor: fxd .33uH +%-5% 200mA

95262

NB 0.37 PS

 

M1

1120-0909

1

 

Meter: log calibrated

-hp-

 

 

 

 

 

 

 

 

 

 

6-7

Page 59 Page 61
Image 60
Page 59 Page 61
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 List of Illustrations List of TablesIii Maintenance Forms, Records, and Reports Section IntroductionScope Administrative Storage Destruction of Army Electronics MaterielReporting Equipment Improvement Recommendations EIR 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 Filter Response Checks Filter Response ChecksMSG dBm 3kHz Flat dBm 15kHz Flat dBm Program dBm Input Balance Bridging LossTMS Brdg Input TMS BrdgAdjustment and Calibration Procedure Power Supply CheckUnbal Calibration Attenuator CalibrationFrequency Response Adjustment Common Mode AdjustmentBalance Check Assembly Removal Troubleshooting ProceduresFilter Calibration 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 Term11. Factory Selected Values 10. Resistance ChecksRange dBm Pin 1 to Pin 2 to 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 NumberAppendix C Manual Backdating ChangesTransmission and Noise Measuring SET 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
Top Page Image Contents