TM 1-1520-238-23
8-44
8.17.
SELECTABLE DIGITAL DISPLAY (SDD) PANEL CASE REPLACEMENT (AVIM)
8.17.1. Description
This task covers:
Removal. Installation.
8.17.2. Initial Setup
Tools:
Electrical tool kit (item 378, App H)
Light duty laboratory apron (item 27, App H)
#1 phillips screwdriver bit (item 35, App H)
Industrial faceshield (item 129, App H)
Chemical protective gloves (item 154, App H)
Adjustable air filtering respirator (item 262, App H)
Large wrist grounding strap (item 346, App H)
1 - 100 inch-ounce 1/4-inch hexagon drive click type
torque wrench (item 437, App H)
Materials/Parts:
Coating compound (item 59, App F)
Personnel Required:
68X
Armament/Electrical System Repairer
68X3F
Armament/Electrical System Repairer/
Technical Inspector
Equipment Conditions:
Ref
Condition
8.14
SDD panel front panel removed
8.15
SDD panel switch module removed
8.16
SDD panel circuit cards removed
CAUTION
Static electrical discharge can damage
semiconductors in circuit card. To pre-
vent damage, repairer must wear
grounding strap when panel is off, and
when handling circuit cards.
8.17.3. Removal
a. Remove side covers (1) and (2).
(1) Remove two screws (3) and cover (1).
(2) Remove two screws (4) and cover (2).
b. Remove partition (5) from SDD case (6).
c. Remove circuit card guide (7) from case (6).
(1) Remove six screws (6).
(2) Remove guide (7).
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