Control Data Corporation CDC CC63X Hardware Maintenance Manual page 97

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1. Remove logic drawer assembly (procedure 4, steps 1
through 5).
2. Remove cable between power supply and the main logic
board. Set cable aside for later reconnection.
3. Disconnect AC power-input connector to power supply
board. Disconnect green ground wire from two spade lugs
on power supply.
4. Remove two screws which secure power supply to mounting
rack.
5. Lift tab on end of mounting rack and slide out power
supply board (figure 6B-lO).
6. Install a new power supply board and reconnect connectors
in the reverse order of disassembly.
7. Replace mounting screws holding power supply board to
mounting rack~
8. Replace the logic drawer assembly (procedure 4, steps 6
through
13).
MOUNTING
RACK TAB,
PUSH UP TO
REMOVE
BOARD
MOUNTING RACK,
ONE ARM EACH SIDE
ON LOGIC DRAWER
ASSEMBLY
MOUNTING SCREWS (2)
04031-5
Figure 6B-lO. Power Supply Board Mounting Detail
62940034 E 6B-l5
I