Service M
a
nu
a
l
Model No.:
5
1.
A
l
wa
ys unplu
g
the receiver
A
C po
w
er cord
f
ro
m
the
A
C po
w
er source be
f
ore:
a
. Re
m
ovin
g
or reinst
a
llin
g a
ny co
m
ponent, circuit bo
a
rd
m
odule or
a
ny other receiver
a
sse
m
bly.
b. Disconnectin
g
or reconnectin
g a
ny receiver electric
a
l plu
g
or other electric
a
l connection.
c. Connectin
g a
test substitute in p
a
r
a
llel
w
ith
a
n electrolytic c
a
p
a
citor in the receiver.
CAUTION:
A w
ron
g
p
a
rt substitution or incorrect pol
a
rity inst
a
ll
a
tion o
f
electrolytic c
a
p
a
citors
ma
y result in
a
n explosion h
aza
rd.
2. Test hi
g
h volt
ag
e only by
m
e
a
surin
g
it
w
ith
a
n
a
ppropri
a
te hi
g
h volt
ag
e
m
eter or other volt
ag
e
m
e
a
surin
g
device (DVM, FETVOM, etc) equipped
w
ith
a
suit
a
ble hi
g
h volt
ag
e probe.
Do not test hi
g
h volt
ag
e by "dr
aw
in
g a
n
a
rc".
3. Do not spr
a
y che
m
ic
a
ls on or ne
a
r this receiver or
a
ny o
f
its
a
sse
m
blies.
4. Unless speci
f
ied other
w
ise in this service
ma
nu
a
l, cle
a
n electric
a
l cont
a
cts only by
a
pplyin
g
the
f
ollo
w
in
g m
ixture to the cont
a
cts
w
ith
a
pipe cle
a
ner, cotton-tipped stick or co
m
p
a
r
a
ble non-
a
br
a
sive
a
pplic
a
tor; 10% (by volu
m
e)
A
cetone
a
nd 90% (by volu
m
e) isopropyl
a
lcohol (90%-99%
stren
g
th).
CAUTION:
This is
a
fl
amma
ble
m
ixture.
Unless specifi ed other
w
ise in this service
ma
nu
a
l, lubric
a
tion o
f
cont
a
cts is not required.
C
a
p
a
citors
ma
y result in
a
n explosion h
aza
rd.
5. Do not de
f
e
a
t
a
ny plu
g
/socket B+ volt
ag
e interlocks
w
ith
w
hich receivers covered by this
service
ma
nu
a
l
m
i
g
ht be equipped.
6. Do not
a
pply
A
C po
w
er to this instru
m
ent
a
nd/or
a
ny o
f
its electric
a
l
a
sse
m
blies unless
a
ll
solid-st
a
te device he
a
t sinks
a
re correctly inst
a
lled.
7.
A
l
wa
ys connect the test receiver
g
round le
a
d to the receiver ch
a
ssis
g
round be
f
ore connectin
g
the test receiver positive le
a
d.
A
l
wa
ys re
m
ove the test receiver
g
round le
a
d l
a
st. C
a
p
a
citors
ma
y result in
a
n explosion
h
aza
rd.
8. Use
w
ith this receiver only the test fi xtures specifi ed in this service
ma
nu
a
l.
CAUTION:
Do not connect the test fi xture
g
round str
a
p to
a
ny he
a
t sink in this receiver.
9. Re
m
ove the
a
ntenn
a
ter
m
in
a
l on TV
a
nd turn on the TV.
10. Insul
a
tion resist
a
nce bet
w
een the cord plu
g
ter
m
in
a
ls
a
nd the etern
a
l exposure
m
et
a
l should
be
m
ore th
a
n Moh
m
by usin
g
the 500V insul
a
tion resist
a
nce
m
eter.
11. I
f
the insul
a
tion resist
a
nce is less th
a
n M oh
m
, the inspection rep
a
ir should be required.
I
f
you h
a
ve not the 500V insul
a
tion resist
a
nce
m
eter, use
a
Tester. Extern
a
l exposure
m
et
a
l:
A
ntenn
a
ter
m
in
a
l He
a
dphone
ja
ck.
L32/42F6
