TM 1-1520-238-23
8-33
8.12.
VERTICAL DISPLAY LAMP BOARD REPLACEMENT (AVIM)
8.12.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
8.12.2. Initial Setup
Tools:
Electrical tool kit (item 378, App H)
Light duty laboratory apron (item 27, App H)
Industrial faceshield (item 129, App H)
Chemical protective gloves (item 154, App H)
Adjustable air filtering respirator (item 262, App H)
Materials/Parts:
Cloth (item 52, App F)
Sealing compound (item 168, App F)
Personnel Required:
68X
Armament/Electrical System Repairer
68X3F
Armament/Electrical System Repairer/
Technical Inspector
Equipment Conditions:
Ref
Condition
8.11
Analog or interface circuit card removed
NOTE
This task is typical for torque, TGT, fuel,
oil pressure, engine/rotor RPM, and NG
lamp board.
8.12.3. Removal
a. Remove lamp board (1) from light bar (2).
(1) Remove retaining screw (3) from board (1).
(2) Carefully pull board (1) from bar (2).
8.12.4. Cleaning
a. Wipe board. Use cloth (item 52, App F).
8.12.5. Inspection
a. Check board for cracks, lose or broken pins,
and broken lamp filaments (para 8.1).
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