4-3
4.3.3 Processor Board Removal and
Replacement
Processor Board Removal:
1) Remove Top.
2) Loosen the two screws holding the board to
slots in the brackets.
3) Unlatch the ribbon cable going to the display.
4) Pull board up and out of unit.
Processor Board Replacement:
1) Align board into the two slots of the brackets
attached to the heatsinks. Align with con-
nector on Output Board and press firmly to
engage it fully. Tighten the two screws.
4.3.4 Transformer Board Removal and
Replacement
Transformer Board Removal:
1) Remove Top.
2) Loosen the two screws mounting the board
to the keyhole slots on standoffs and two
screws mounting the board to the heatsink.
3) Unlatch the ribbon cable and power cable on
the top of the board.
4) Pull board towards inside of unit so screws
line up with keyholes, then up and out of
unit. The power cable to RF Amp must be
unplugged to completely remove transformer
board.
Transformer Board Replacement:
1) Reverse board removal operation.
NOTE: When servicing unit, board can be sup-
ported in heatsink as shown. This will provide
access to the lower boards while the unit is func-
tional.
Align slot
in board
with rib on
heatsink.
Route cable through slot.
