TM5-1260-206-34
Table 3-5.
Power Supply Maintenance Procedures - Continued
STEP
ITEM
NO.
PROCEDURE
2
Power supply
Energize DAC
Using a multimeter, perform the following measurements.
TOLERANCE
NORMAL
PIN
NO.
INDICATION
+ 5V
0.5V
A86
+15V
0.5V
A76
0.5V
-15v
A46
Bottom cover plate
3
Replace and secure with 24 screws and washers
REMOVAL
4
Top cover plate (3)
Remove 24 screws and washers (4). Lift off cover plate.
Power supply (5)
5
Remove by doing the following:
Loosen four captive screws (6)
a.
Insert screwdriver through four holes (7) and loosen captive
b.
screws.
REPLACEMENT
Power supply
6
Replace by doing the following:
Insert power supply into DAC unit.
a.
b.
Press down firmly until connectors (9) are fully mated.
Insert screwdriver through four holes and tighten captive screws.
c*
Tighten four captive screws.
d.
Top cover plate
7
Replace and secure with 24 screws and washers.
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