LC-13B2H/M
16
TROUBLE SHOOTING TABLE
(Continued)
No sound
fr
om
speaker
s
Yes
No
Is Pin (53) of
IC2001 at
“L
”?
Chec
k all the settings on the microprocessor’
s adjust process men
u.
No sound
No
Are outputs at
Pins (1) and (7)
of IC3301 as
specified?
Yes
No
Are inputs at
Pins (2) and (4)
as w
ell as
outputs at Pins
(8) and (12), all
of IC3305, as
specified?
Muting eff
ect is
on.
Chec
k the
FSMUTE line
.
Chec
k IC3301,
IC3302, IC3303
and their
per
ipher
al par
ts
.
Chec
k the line
in question,
IC3305 and its
per
ipher
al
par
ts
.
Yes
Chec
k the
speak
ers and
their per
ipher
al
par
ts
.
No sound
fr
om
headphone
Yes
No
Is Pin (55) of
IC2001 at
“L
”?
Chec
k the
headphone and
its per
ipher
al
par
ts
.
Chec
k Q2050,
J3500 and their
per
ipher
al
par
ts
.
No sound
fr
om output
line
Yes
No
Is Pin (58) of
IC2001 at
“L
”?
No
Are outputs at
Pins (14) and
(15) of IC3501
as specified?
Yes
Chec
k the line
in question.
Chec
k the
LMUTE line
.
Chec
k IC3501,
IC3304 and its
per
ipher
al
par
ts
.
TV sound
failure
Yes
No
Is output at Pins
(15) and (16) of
tuner as
specified?
No
Is input at Pin
(67) of IC3304
as specified?
Yes
Chec
k IC3304,
X3301 and
their per
ipher
al
par
ts
.
Chec
k the
tuner and its
per
ipher
al
par
ts
.
Chec
k Q3201,
Q3202 and
their per
ipher
al
par
ts
.
Содержание LC-13B2H
Страница 17: ...17 LC 13B2H M M E M O ...
Страница 18: ...18 LC 13B2H M A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 CHASSIS LAYOUT MAIN Unit Side A MAIN Unit Side B ...
Страница 30: ...38 LC 13B2H M A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 PRINTED WIRING BOARD ASSEMBLIES Main Unit Side A ...
Страница 31: ...39 LC 13B2H M A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Main Unit Side B ...
Страница 32: ...40 LC 13B2H M A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Terminal Unit Side A ...
Страница 33: ...41 LC 13B2H M A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Terminal Unit Side B ...
Страница 36: ...44 LC 13B2H M M E M O ...
