Radio Shack CCR-81 Technical Reference Manual

DISASSEMBLY
REASSEMBLY
1.
Make
sure all
cables (also
power
cord) are
disconnected.
Place the
Color
Computer face
down on a
padded
or non-
scratching
surface and
remove the
seven screws
from the
Case
Bottom.
(Because the
screws
are positioned
so
deeply,
you
may not be
able to
actually
remove them
until the
Computer is turned
face up.)
2.
Carefully
place the
Computer face up
and lift
off the Case
Top
and set it
aside.
3.
Carefully
lift the
Keyboard
off the
plastic bosses
and
remove
the
Keyboard
Cable.
4. Remove
the Top
Cover Shield
and set
it aside.
You may
have to
remove
the top
cover
of the
modulator (U5)
to
get the
shield
off.
5.
Remove
the three
screws
supporting
the
transformer
assembly
(two
on
transformer,
one on
the board)
and
disconnect
all
jumper cables.
6.
Remove
the
ten
screws
fastening the
CPU PC
Board and
lift
the Board
off
its plastic
bosses.
7.
Remove the
Ground
Plane and
Insulator from
the
back
of
the PC
Board by using
a
screwdriver or other
small, thin
tool to pry
off all
sixteen
fasteners from the rear
of the
Board.
1.
Replace the
Ground Plane and
its Insulator
on back
of
the
PC Board
and install the
sixteen
fasteners.
You may
need
some pliers to close
the tips
together and
then
insert.
2.
Replace the PC
Board onto
the plastic bosses.
Be
sure that
the
ends
of the Power
Cord are
pulled through
the
square
cutout in
the Board
where the
transformer is
positioned.
3.
Fasten the PC
Board in place
using ten
#6
x
1/2"
screws.
4. Connect
the transformer
jumper cables, E1
through E4
and the
Power Cord
jumpers, E6
•
white, E5
-
green,
and
E7
-
black.
5.
Position the
Transformer assembly
and attach
jumper
cable E8.
Fasten using two #6
x 1
1/2"
screws (on
trans-
former)
and one
#6
x
1/2"
screw (on
board).
6.
Replace the
Top Cover Shield.
7.
Reconnect the
Keyboard Cable and
Cable Shield
if
used.
Replace
the
Keyboard onto the plastic
bosses in
the case
bottom.
8. Replace
the Case Top
onto the Case
Bottom and
carefully
turn the
entire unit over (face
down).
9. Replace the
seven screws in the
Case
Bottom (two
#6
x
7/8"
toward the
front and five
#6 x
1
1/4"
toward the
rear). Do not put the longer screws in the
front positions,
it
could dent the Computer Case Top.
12

Radio Shack CCR-81 Specifications

General

Brand	Radio Shack
Model	CCR-81
Category	Desktop
Language	English