TABLE OF CONTENTS - continued

TM 11-5820-921-40-1

TABLE OF CONTENTS (Continued)

Section

Page

3 MAINTENANCE INSTRUCTIONS (Continued)

Section II Tools and Equipment

3-6

3-1

Tools, Cleaning Solvents, Lubricants, and Other Consumable Supplies . . . . . . . . . . . .

3-8

Maintenance Records and Report Forms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1

3-10

Service Requirements Prior to, During and After Operation . . . . . . . . . . . . . . . . . . . . 3-1

3-12

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

3-14

Power Amplifier Inspection, Cleaning and Touchup - External . . . . . . . . . . . . . . . . . .

3-8

3-17

3-8

Removal of Power Amplifier Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-18

Removal of Meter Board PWB Assembly I A N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Removal of DC Control PWB Assembly 1A2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

3-19

Removal of System Control PWB Assembly 1A3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

3-20

Removal of Tune Control PWB Assembly 1A4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

3-21

Removal of Servo Amplifier PWB Assembly lA5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

3-22

Removal of Band Control PWB Assembly 1A6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

3-23

Removal of ALC Module Assembly lA7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13

3-24

Removal of Tank Circuit Module Assembly 1A8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

3-25

Removal of Plate Assembly lA9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

3-26

Removal of Tune Detector Module Assembly 1A10 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

3-27

Removal of RF Driver Module Assembly lA11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

3-28

Removal of Static Power Inverter Assembly 1A12 . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

3-29

Removal of High Voltage Module Assembly 1A13 . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

3-30

Removal of Card Cage Assembly P/N755017A4205. . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

3-31

Access and/or Removal of Harmonic Filter Assembly 1A15 . . . . . . . . . . . . . . . . . . . . 3-15

3-32

Access and/or Removal of Component Bracket P/N 755017A4064 . . . . . . . . . . . . . . 3-15

3-33

Access to Interconnection PCB Assembly 1A14A1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

3-34

Removal of Power AmplifierTubes 1A14V1 and 1A14V2 . . . . . . , . . . . . . . . . . . . . . 3-16

3-35

3-36

Access and/or Removal of Tube Socket Assembly 1A14A2. . . . . . . . . . . . . . . . . . . . . 3-16

3-37

Access and/or Removal of DC-to-DC Converter Assembly 1A14A3 . . . . . . . . . . . . . . 3-17

3-38

Access and/or Removal of Regulator Assembly P/N 755017A4031 . . . . . . . . . . . . . . 3-17

3-39

Access and/or Removal of Transformer 1A14T1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

3-40

Access and/or Removal of Connector 1A14J10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

3-41

Access and/or Removal of Connector lA14Jll. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Access and/or Removal of Connector lA14J12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

3-42

Access and/or Removal of Connector lA14J13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

3-43

Removal of Heat Sink Cover P/N755017A4006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

3-44

Removal of Heat Sink Blower lA14B1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

3-45

Assembly and/or Component Inspection Procedures . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

3-46

Dirt and/or Residue on Unit Contours and/or Components . . . . . . . . . . . . . . . . . . . . 3-18

3-48

Clogged Heater Exchange Intakes or Outlets; Clogged Fan and/or Relief

3-50

Valve Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Damaged Connector Threads; Bent, Loose, or Missing Pins; or Corroded

3-52

Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Blurred or Missing Case Markings and Scratched or Chipped Painted

3-54

Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Missing and/or Damaged Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

3-56

Structural Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

3-58

Cable Harness Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

3-60

Seized Heatsink Blower (Vaneaxial Fan) 1A14B1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

3-62

Loose Case Assembly (1A14) Components, Assemblies, and Connectors . . . . . . . . . . 3-23

3-64

Overheated, Cracked, Broken, or Missing PCB/PWB Components , . . . . . . . . . . . . . . . 3-23

3-66