Radio Shack TRS-80 Service Manual page 40

7
8
9
10
11
12
13
14
15
525674001
-2001
34527125-2001
34828005-2001
34923105-2001
34000351-2040
34000451-2056
34000652-2006
63761184-4001
63779114-4001
Splice
Screw,
No.
6-32
x .38
Lg.,
Pan
Hd.
Phillips
Washer,
Split Lock,
No. 6
Washer,
Flat,
No.
6
Screw,
M4
x
16
mm
Lg.
Pan
Hd.
Phillips
Washer,
Split Lock,
Ext.
Tooth,
M4
Nut,
Hex,
M4
Cable
Assembly
Adapter
Jumper
Wires, Transformer
A.
FUNCTION
The power
bracket
assembly
contains the
ON/OFF
switch
and
extending from
bracket
is
the
AC
power
cord.
The
line
filter
assembly
filters
transients generated by the
ON/OFF
switch or transformer.
B.
REM
OVAL/ REPLACEMENT PROCEDURE
TOOLS
REQUIRED:
Phillips
Head
Screwdriver
1.
Disconnect
all
wires from the power
bracket assembly
(1,
2)
and
line
filter
assembly
(6).
2.
Remove
the
two screws
(3)
lockwashers
(4)
and flatwashers
(5)
supporting the power
bracket
assembly
to
the elec-
tronic module.
3.
Remove
screw
(1 1),
two
external tooth lockwashers
(12)
and
nuts
(13)
connecting ground wire
of
AC
power
cord
and
remove
the
power
bracket assembly.
4.
Remove
the three
screws
(8),
lockwashers
(9)
and
flatwashers
(10)
and remove
the
line
filter
assembly.
C.
ADJUSTMENTS
1.
No
adjustments
are required on the primary voltage
kit.
D.
PREVENTIVE
MAINTENANCE
1.
No maintenance
is
required
on
the
primary
voltage
kit.
Figure 3-8G. KIT,
PRIMARY VOLTAGE ASSEMBLY
3-24