TM 11-6625-3081-23
2-28. 488 CONTROLLER POWER SUPPLY ASSEMBLY 1A2 REPLACEMENT
2-28
INITIAL SETUP
Personnel Required
Tools
39B ATE Repairer
One assistant
Goggles
Rubber apron
Equipment Condition
Materials (appendix C)
Power removed (para 2-24.1)
Artist brush (Item 8)
Cheesecloth pad (Item 11)
Chemical film (Item 12)
Rubber gloves (Item 26)
Emery paper, 400 grit (Item 35)
Zinc chromate primer (Item 39)
Trichlorotrifluoroethane (Item 48)
REMOVAL
1.
2.
3.
4.
5.
6.
Remove blank panel (para 2-25, blank
panel 3).
On front panel of 488 controller
power supply assembly (1), remove
four screws (2), lockwashers (3), and
washers (4), and pull out 488 con-
troller power supply assembly.
On rear panel of 488 controller power
supply assembly, disconnect the fol-
lowing connectors:
115 vac connector (5) from P201
1W2 P304 (6) from J304
1W2 P305 (7) from J305
1W2 P306 (8) from J306
1W2 P307 (9) from J307
Loosen two screws (10) and disconnect
top stacked bus connector HP10833C
(11).
Loosen two screws and disconnect
bottom stacked bus connector
HP10833B (12).
Disconnect ground lead (13) from 488
controller power supply assembly.
2-192
Change 2
