46210/46220-0998 <90-00036>
P
AGE
31
F
IG
. 25 - P
OWER
S
UPPLY
/CPU M
OUNTING
L
OCATIONS
8.
Pull the power supply and CPU subassembly free from the clips
that are holding it in place.
9.
The two halves of the Power Supply/CPU subassembly are held
together by six (6) screws (refer to Fig. 26). Remove these screws
and gently separate the two halves, noting first the routing of the
black ground wire.
10.
Disconnect the plastic connector in the black ground wire.
11.
Put the two halves of the old Power Supply/CPU unit back together
and set it aside.
12.
Separate the two halves of the replacement unit as in step 9 above.
Connect the black ground wire, routing it in the same way as it was
in the old board.
13.
Put the two halves of the replacement board back together, ensur-
ing that all the pins seat correctly. Secure with its six screws.
14.
Install the new subassembly using the original hardware by insert-
ing each screw through the housing, through a standoff, and into
the subassembly one at a time. Start each screw into the subassem-
bly, but do not tighten any of them until all four screws have been
started.
15.
Reconnect the ribbon cables.
16.
Set the switches and straps (refer to the subassembly that you
removed, or to the Installation chapter).
17.
Reconnect the power connector at TB1, then reinstall the fuse.
WARNING:
Do not connect the power connector at TB1 with the fuse
installed. This may damage the unit.
13.
Push the power supply and CPU boards into place.
14.
Close the unit.
SUBASSEMBLY REPLACEMENT
Remove Screws (4 places)
Front
UPDATED
CONTINUED
. . .
