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SECTION
III.
DISASSEMBLY /ASSEMBLY
3.1
Disassembly
1.
Disconnect power
and remove signal
cables from
the
unit.
2.
Remove cartridge from slot
(if
applicable)
3.
Turn
the
unit over and place
it
on
a
soft surface
to
prevent damage
to the
keyboard
or top cover,
4.
Loosen and remove
the
six (four
screws
SI
and
two
longer screws
S2)
mounting
screws
which attach
the
base
to the
top cover.
(Figure
3-1)
5.
Disconnect
the
cable from
the
wire
connector which
is
attached
to the
keyboard (Figure
3-2).
6.
Then disconnect
the
power
transformer
at
the
3-pin connector
on the
main
PCB (Figure 3-2).
7.
Remove
four (two screws S3 and
two
screws S4) screws which attach
the
PCB
to
the
bottom case cover
(Figure 3-2).
If it is
necessary
to
remove
the
shield from
the
PCB,
do so
by removing
the
16
rivets
which attach
it to
the PCB.
3.2
Assembly
Assemble
the
Color Computer
3
in
the
reverse order of disassembly. The PCB
shield
is
attached
to the
PCB with
metal rivets. These shields must
be
in
place
to
provide proper RFI
shielding.
Set the
wire assembly
from the
transformer and
flat cable from the
keyboard
to the
connector
on the PCB.
Two different types
of
screws are
used
to
mount
the PCB and the top and
bottom cabinet. Ensure
that the
correct type
is
used when reassembl-
ing.
The strain relief
on the
power cord
consists
of
wrapping
the cord
around
the
plastic bosses
on the
rear side
of the unit.
Ensure
that the
power
cord
is
properly routed
to
afford
strain relief
to the
transformer
connections.
^©
3-pin
connector (CN7)
CN2
©
Figure
3-1.
Removal of Top Cover
Figure
3-2.
Removal
of
Main PCB
-26-
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