TM 11-6625-3081-23
2-55. MATRIX SWITCH ASSEMBLY 2A2A1O REPAIR (cont)
2-55
2. CIRCUIT CARD ASSEMBLY (CCA)
REPLACEMENT
NOTE
This procedure is used to replace any
of 68 CCAs in matrix switch assembly.
REMOVAL
a.
To remove top or bottom access
cover (1), loosen screw (2) and
slide cover towards rear, then
lift off.
Refer to list below
for CCA location.
CCA No.
slot
Quadrant
HP94140B
CONTROL
1, 2, 3, 4
HP94140A
1 thru 16
1, 2, 3, 4
Blank
17
1, 2, 3, 4
CAUTION
This equipment contains parts and
assemblies sensitive to damage by
electrostatic discharge (ESD). Use
ESD precautionary procedures when
touching, removing, or inserting
circuit card assemblies.
b.
Comply with ESD procedures for
CCAs (para 2-21).
c.
To remove any CCA (3), pull
straight up using ring tab (4).
INSTALLATION
d.
Install CCA in reverse order of
removal.
Refer to list above for
CCA location.
END OF TASK
2-292
Change 3
PIN: 061390-003
