Radio Shack TRS-80 Service Manual page 57
Pocket computer printer and cassette interface
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Also See for TRS-80:
- Reference manual (274 pages) ,
- User manual (236 pages) ,
- Service manual (199 pages)
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3. Repairs
(1)
Repair
Proudure
\\'hen
a f•ult
occurs, carefully
observe and check
the
type
of the
trouble.
Firtd
out the
cause and mokt
rtj)11rs
after
checking
the
location of
the
fault, referring
to
the .. Repair
Guide."
l
"Phenornenon":
Detennine the
trouble
phenon1cnon
frorn
this
coluinn.
2
'"Condition"
:
Com
pa.re the trouble with
this
colu1nn nnd verify whether
h
coincid<.'S.
3
"Cause":
Causes
based
on
the
condirion
of
the
rrouble
are
lisrcd. Verify rhe cause.
4
"Locarions
and
Methods o
f
Checking":
Tl1e
c0Jun1n
lists where
to check
for
trouble a_nd
by what
n1ethod.
Check
according
to
the
instruct ions
in
this column
and
locale the
trouble.
5
"Repair
M
ethod":
Repair
the
trouble
aceording
to
the
1
.
n .structioru
described
in
this colurnn.
Jfthc same
phcnorncnon
or
c.
o
nditions exist after
making
repairs,
check
the
other items. in Che
caus.c of lhis
column
and
make
necessary repairs.
(21
Repair
Tools
•
Screwdrivtn (Precision
Screwdrivers)
Phillips
Type
4.
Phillips
Type
5.
Flal·blade Type
S.
•
ET
llolders
ET
2
llT
1.5
ll1'
1.2
•
Radio
pliers.
or
reed pliers
•
Tweeurs
•
Soldering iron
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-56-
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