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

Page 61

Section VI

Model 3555B

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

REFERENCE DESIGNATOR

-hp-

PART NO.

TQ

DESCRIPTION

MFR.

MFR. PART NO.

R1

R2

R3

R4

R5

R6

R7

R8

R9

R10

R11

S1

S2

S3

S4,S5

S6

T1

W1

W2

W3

W4

W5

W6

W7

03555-67902

0757-0795

0698-4205

0698-7371

0698-3158

0698-4488

0698-7371

0757-0290

0698-3158

0698-3245

0757-0455

0698-4434

3100-1794

03555-61904

3101 0045

3101 -0001

3101-1234

9100-1457

03555-69503

03555-69504

03555-69502

03555-69505

03555-69501

03555-61611

0340-0099

0340-0100

0370-0035

0370-0046

0370-0440

1390-0137

1390-0186

1400-0062

1400-0076

1520-0001

4040-0476

5000-7126

5000-7134

5000-7135

5000-7136

5000-7138

5000-7139

5000-7140

5000-7147

8120-1518

CHASSIS MOUNTED COMPONENTS (Cont'd)

1	Power Supply Ass'y

1R: fxd met flm 75 ohms +/-1% 1/2W

1R: fxd met flm 21 kilohms +/-1% 1/8W

2R: fxd met flm 20.605 kilohms +/-0.1% 1/8W

2R: fxd met flm 23.7 kilohms +/-1% 1/8W

1R: fxd met flm 26.7 kilohms +/-1% 1/8W

R:fxd met flm 20.605 kilohms +/-0.1%

1R: fxd met flm 6.19 kilohms +/-1% 1/8W

R:fxd met flm 23.7 kilohms +/-1% 1/8W

1R: fxd flm 20.5 kilohms +/-1% 1/8W

1R: fxd met flm 36.5 kilohms +/-1% 1/8W

1	R: fxd met firm 2.32 kilohms +/-1% 1/8W
1	Switch: lever, input

1Switch Ass'y: weighting

1Switch: slide

2Switch: toggle SPST

1Switch: slide DPDT

1Transformer: power

1Cable Ass'y

1Cable Ass'y

1Cable Ass'y

1Cable Ass'y Not assigned

1	Cable Ass'y
1	Cable Ass'y: interconnecting and range

MISCELLANEOUS

4 Insulator: binding post

2Insulator: binding post single

1Knob: bar w/arrow black

2Knob: lever switch, black

8Knob: pushbuttons, grey

4Washer: retaining 1/4 turn fastener

4Stud: 1/4 turn fastener

1Clip: cable

2Clip: fuse

1Wafer: cap plate mtg 4 lug

1	Insulator: jack

1Decal: pushbutton "75 UNBAL"

1Decal: pushbutton "135 BAL"

1Decal: pushbutton "150 BAL"

2Decal: pushbutton "600 BAL"

1Decal: pushbutton "HOLD"

1Decal: pushbutton "DIAL-BAT"

1Decal: pushbutton "NG"

1Decal: pushbutton "900 BAL"

1Cord Set: power

-hp-

91637

91637

91637

91637

91637

91637

14674

91637

14674

14674

91637

76854 -hp- 82389 04009 82389

-hp-

-hp- -hp- -hp- -hp-

-hp- -hp-

-hp- -hp- -hp- -hp- -hp-

71286

71286

78553

75915

56137

-hp- -hp- -hp- -hp- -hp- -hp- -hp- -hp- -hp- 70903

MFF-1/2-T-1	obd
MF-1/10-32	obd
CMF-1/10-32	obd
MF-1/10-32	obd
MF-1/10-32	obd
CMF-1/10-32	obd
C4	obd
MF-1/10-32	obd
Cr	obd
C4	obd
CMF-1/10-32	obd
1332	obd
11A-1014A
80994-HB
11A-1242A

2600-1W

265424

C21891-017-24

101002 Grade X-831

obd

6-8

Image 61

Contents HEADQUARTERS, Department of the Army TM 11-6625-2779-14&P Reporting Errors and Recommending ImprovementsTechnical Manual Headquarters Department of the Army NSNReplaceable Parts List of Tables List of IllustrationsIii Section Introduction Maintenance Forms, Records, and ReportsScope Destruction of Army Electronics Materiel Administrative StorageReporting Equipment Improvement Recommendations EIR Items Comprising an Operable Equipment Voice Frequency Level Measurements 20Hz to 20kHz SpecificationsSection General Information Introduction SectionAccessory Equipment Supplied Accessory Equipment SuppliedInstrument Identification BAL ModificationWarranty Exception Section Installation InspectionPower Requirements BatteryCover Removal Installation and Removal of BatteryBattery Controls Connectors IndicatorsSection Operating InstructionsFront 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 Transmission Loss Measurements Identifying Noise CharacteristicsCrosstalk Measurements Crosstalk Correction FactorMeasurements in DBC 0dBm Reinstall the set in its caseInput jacks are connected in parallel. If a 600 ohm 135 BALLevel Measurement Noise Metallic Measurements Step ProcedureRecorder Calibration Noise-to-Ground Measurements Balance MeasurementExample Transmission Loss MeasurementSection Theory of Operation Introduction Block Diagram DescriptionSimplified Dial BAT Function Detailed Circuit DescriptionRange Attenuator A2 Input Amplifier A3. Schematic NoFILTERS. Schematic No Setting AttenuationRange Attenuator Pads UsedKHz 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 Instrument Recommended Type Required Characteristics Model Section Maintenance IntroouctionFactory Selected Values BAL ConversionLevel Accuracy Checks Performance ChecksFunction CARRIER, 75 Unbal TMS, TermRange Unbal Carrier Accuracy CheckFrequency 30Hz to 1MHz 100Hz to 600kHz 1MHz to 3MHz20Hz to 20kHz 40Hz to 15kHz 100Hz to 20kHz 100Hz to 15kHz Return Loss CheckReturn Loss Test Set-Up Filter Response Checks Filter Response ChecksMSG dBm 3kHz Flat dBm 15kHz Flat dBm Program dBm Bridging Loss Input BalanceTMS Brdg Input TMS BrdgPower Supply Check Adjustment and Calibration ProcedureUnbal Calibration Attenuator CalibrationCommon Mode Adjustment Frequency Response AdjustmentBalance Check Troubleshooting Procedures Assembly RemovalFilter Calibration Troubleshooting Tree Dial BAT Front Panel Trouble AnalysisFunction Troubleshooting Front Panel TroubleshootingRange Troubleshooting Front Panel Trouble Analysis ContdFilter Troubleshooting Troubleshooting Input AmplifierTroubleshooting the Meter Amplifier and Detector Defective FunctionFunction Input Jacks DIAL/AC MON Jacks Function Switch Resistance ValuesTip to Ring Tip to Ground Ring to Ground Brdg Term10. Resistance Checks 11. Factory Selected ValuesRange dBm Pin 1 to Pin 2 to Description Check Performance Check Test CardCarrier 75 Unbal Level Accuracy Check Carrier 135 BAL Level Accuracy CheckCarrier 600 BAL Level Accuracy Check Performance Check Test Card ContdFilter Response Checks MSG Return Loss CheckProgram Bridging Loss CheckOrdering 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 Part Number National Stock Number Cross Reference Index Replacement National Part Stock Number FscmFscm National Stock NumberPage Model 3555B Appendix a Code List of Manufacturers Functional Block Diagram Circuit DiagramsSchematic Diagrams Reference DesignationsSection 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 aMaintenance Function Maintenance Allocation Section I. Introduction GeneralAppendix B Column EntriesRemarks Sec Tool and Test Equipment Requiremen ts SecAudio Level Meter TA-885/U REF Code Number TM 11-7725-2779-14&PManual Backdating Changes Appendix CTransmission and Noise Measuring SET Government Printing Office 1980-603-128/66 Delete CR6 across M1Chief of Staff General, United States ArmyMajor General, United States Army Adjutant General Active ArmyPage PIN