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Radio Shack TRS-80 III User Manual

Radio Shack TRS-80 III
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4.
To
remove
the
Disk Drive
in
the
bottom
position,
you
must
first remove
the
Disk Drive Power
Supply.
5.
After
removing
the
Power
Supply,
remove
the
FDC
inter-connect
cable
from
the
rear
of
the
Drive.
6.
Remove
the
four
screws
and
washers (two
on
each side)
which
connect
the
Drive
to
the
Disk Mounting Bracket.
7.
Disconnect
the
power
supply
connector
from
the
bot-
tom
of
the
top
board
in
the
Disk Drive
and
also remove
the
ground
wire
from
the
rear
of
the
Drive.
VIDEO
MONITOR (CRT)
AND
VIDEO BOARD
1. Disconnect
the
four
color
coded
wires with spade lugs
from
the
CRT
yoke.
(Be sure
to
note
their
positions.)
2.
Disconnect
the
connector
on
the
rear
of
the
CRT
neck.
WARNING
There
may
be a high voltage charge
on
the
high voltage
anode.
To
discharge,
connect
one
end
of
a wire
to
a
known
good
ground
and
connect
the
other
end
of
the
wire
to
the
blade
of
a
common
screwdriver. Insert
the
screwdriver blade
under
the
suction
cup
and
touch
it
to
the
clip holding
the
wire
to
the
CRT.
8
3.
Insert a
common
screwdriver
under
the
suction
cup
on
the
high-voltage
anode
wire
on
the
side
of
the
CRT. Use
the
screwdriver
to
compress
the
clip holding
the
wire
to
the
tube
and pull
the
wire free.
4.
Remove
the
ground
wire fastened directly
to
the
Video
Board.
5.
Remove
the
upper
right
and
It>wer
left
nuts
and washers
which hold
the
CRT
in
place.
CAUTION
If
dropped,
the
CRT
may
implode.
To
avoid
this
kind
of
accident,
support
the
CRT
while performing
the
next
step.
6.
Remove
the
remaining
I~wer
right
and
upper
left
nuts,
and
washers
and
carefully remove
the
CRT.
7.
Disconnect
the
CPU cable
connector
from
the
Video
Board.
8.
Remove
the
two
screws fastening
the
Video Board
to
the
Case
Top
and carefully lift
out
Board.

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Radio Shack TRS-80 III Specifications

General IconGeneral
BrandRadio Shack
ModelTRS-80 III
CategoryDesktop
LanguageEnglish

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