25
LC-20S4E
TROUBLE SHOOTING TABLE
(Continued)
No
No
No
Yes
Yes
No Sound (2/2)
TV sound failure
No input sound from
SCART
No output sound
from SCART
Check IC501 and its
peripheral parts.
Is output of pins (E25)
and (F23) of IC501
normal?
Check Q3902, Q3903,
Q3906, Q3907 and their
peripheral parts.
Check the SC_Lin,
SC_Rin line and their
peripheral parts.
Is input of pins (F24)
and (F25) of IC501
normal?
Check SF202 and its
peripheral parts.
Is input/output of
SF202 normal?
Check IC501 and its
peripheral parts.
Содержание Aquos LC-20S4E
Страница 29: ...31 6 5 4 3 2 1 A B C D E F G H LC 20S4E SCHEMATIC DIAGRAM Ë INVERTER Unit ...
Страница 30: ...33 32 LC 20S4E 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë SUB Unit 1 2 ...
Страница 31: ...35 34 LC 20S4E 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë SUB Unit 2 2 ...
Страница 32: ...37 36 LC 20S4E 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 1 4 ...
Страница 33: ...39 38 LC 20S4E 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 2 4 ...
Страница 34: ...41 40 LC 20S4E 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 3 4 ...
Страница 35: ...43 42 LC 20S4E 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 4 4 ...
Страница 36: ...44 6 5 4 3 2 1 A B C D E F G H LC 20S4E Ë OPERATION Unit ...
Страница 37: ...45 6 5 4 3 2 1 A B C D E F G H LC 20S4E Ë R C LED Unit ...