17
LC-13B2E
No sound
Check all the settins microprocessor's adjust process menu.
Is the pin (53) of
IC2001 in the
"L" state?
Is output at pins
(26) and (27) of
IC901 normal?
Is output at pins
(1) and (7) of
IC903 normal?
Yes
Yes
No
No
No
No
No
No sound
from front
speakers
Is output at pins
(1) and (7) of
IC303 normal?
Yes
Is output at pins
(8) and (12) of
IC3305 normal?
Yes
Muting effect is
on. Check the
FSMUTE line.
Check IC901
and its
peripheral parts.
Check IC903
and its
peripheral parts.
Check IC303
and its
peripheral parts.
Check IC3305
and its
peripheral parts.
Check front
speaker and
connection
cable.
Yes
Is the pin (53) of
IC2001 in the
"L" state?
Is output at pins
(26) and (27) of
IC901 normal?
Is output at pins
(1) and (7) of
IC903 normal?
Yes
Yes
No
No
No
No
No
No
Is output at pins
(1) and (7) of
IC303 normal?
Yes
Is output at pins
(8) and (12) of
IC3305 normal?
Yes
Muting effect is
on. Check the
FSMUTE line.
Check IC901
and its
peripheral parts.
Check IC903
and its
peripheral parts.
Check IC303
and its
peripheral parts.
Check IC3305
and its
peripheral parts.
Yes
Is output at
Q301 normal?
Check Q301
and connection
cable.
No sound
from
headphone
TV sound
failure
Is output at pins
(37) and (38) of
IC901 normal?
Is output at pins
(1) and (7) of
IC902 normal?
Check IC901
and its
peripheral parts.
Check IC902
and its
peripheral parts.
Yes
No
No
No
No sound
from output
line
Is output at pin
(1) of W7 tuner
normal?
Is input at pin
(67) of IC901
normal?
Check the tuner
and its
peripheral parts.
Check IC901,
MONOS/SIF
line and their
peripheral parts.
Yes
No
TROUBLE SHOOTING TABLE
(Continued)
Summary of Contents for LC13-B2E
Page 5: ...5 LC 13B2E Dimensions Unit mm ...
Page 24: ...29 28 LC 13B2E 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 1 7 ...
Page 25: ...31 30 LC 13B2E 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 2 7 ...
Page 26: ...33 32 LC 13B2E 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 3 7 ...
Page 27: ...35 34 LC 13B2E 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 4 7 ...
Page 28: ...37 36 LC 13B2E 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 5 7 ...
Page 29: ...39 38 LC 13B2E 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 6 7 ...
Page 30: ...41 40 LC 13B2E 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 7 7 ...
Page 31: ...43 42 LC 13B2E 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë TUNER Unit ...
Page 32: ...44 6 5 4 3 2 1 A B C D E F G H LC 13B2E Ë JACK Unit ...
Page 34: ...46 6 5 4 3 2 1 A B C D E F G H LC 13B2E Main Unit Side A ...
Page 35: ...47 6 5 4 3 2 1 A B C D E F G H LC 13B2E Main Unit Side B ...
