13
FL38
(LC-15A2L)
TROUBLE SHOOTING TABLE
(Continued)
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
2 and 11 of
IC301 normal?
Yes
Muting effect is
on. Check the
FSMUTE line.
Check IC901
and their
peripheral parts.
Check IC903
and their
peripheral parts.
Check IC303
and their
peripheral parts.
Check IC301
and their
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
2 and 11 of
IC301 normal?
Yes
Muting effect is
on. Check the
FSMUTE line.
Check IC901
and their
peripheral parts.
Check IC903
and their
peripheral parts.
Check IC303
and their
peripheral parts.
Check IC301
and their
peripheral parts.
Yes
Is output at Q25
Q26 normal?
Check Q25 and
Q26 and
connection
cable.
Is the pin 54 of
IC2001 in the
"L" state?
Is output at pin
32 of IC901
normal?
Is output at pin
2 of IC302
normal?
Yes
Yes
No
No
No
Check rear
speaker and
connection
cable.
Yes
Muting effect is
on. Check the
RSMUTE line.
Check IC903
and their
peripheral parts.
Check IC302
and their
peripheral parts.
No sound
from rear
speakers
No sound
from
headphone
Is output at pins
37 and 38 of
IC901 normal?
Is output at pins
1 and 7 of
IC902 normal?
Check IC901
and their
peripheral parts.
Check IC902
and their
peripheral parts.
Yes
No
No
No sound
from output
line
TV sound
failure
Is output at pin
1 of W7 tuner
normal?
Is input at pin
67 of IC901
normal?
Check the tuner
and their
peripheral parts.
Check IC901,
MONOS/SIF
line and their
peripheral parts.
Yes
No
No
Summary of Contents for 60415 A60
Page 20: ...5 FL38 LC 15A2L OUTLINE DIMENSION FIGURE Units mm...
Page 34: ...21 FL38 LC 15A2L M VSY N CK O SPIO P SPOI Q HG R IC2005 S CSYNC T VIDEO...
Page 37: ...25 FL38 LC 15A2L 24 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H MAIN Unit 1 2...
Page 38: ...27 FL38 LC 15A2L 26 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H MAIN Unit 2 2...
Page 39: ...29 FL38 LC 15A2L 28 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H TERMINAL Unit...
Page 40: ...6 5 4 3 2 1 A B C D E F G H 30 FL38 LC 15A2L PRINTED WIRING BOARD ASSEMBLIES MAIN Unit Side A...
Page 41: ...6 5 4 3 2 1 A B C D E F G H 31 FL38 LC 15A2L MAIN Unit Side B...
Page 42: ...5 4 3 2 1 A B C D E F G H 32 FL38 LC 15A2L TERMINAL Unit Side A...
Page 43: ...6 5 4 3 2 1 A B C D E F G H 33 FL38 LC 15A2L TERMINAL Unit Side B...
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