Heat Sink/Power
Transistor
Assembly Removal
1.
Position Printer Power switch to
OFF;
unplug printer power
cord from wall outlet and disconnect Parallel Printer Cable.
2.
Remove forms.
3.
Remove forms rack
(Se<e
page 3-56).
~
4.
Remove access cover (See page 3-32).
5.
Remove top cover (See page 3-88).
6.
Remove power transfonner (See page 3-74).
7.
Remove fuse-filter card/power cord (See page 3-60).
8.
Remove driver circuit card (see page 3-51).
9.
Remove control circuit card (See page 3-45).
10.
Remove print mechanism assembly (See page 3-80).
11.
Lift heat sink assembly
II
from base cover.
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3-62