17
LC-15B2EA
TROUBLE SHOOTING TABLE
(Continued)
No sound (2)
Check all the settings microprocessor
’s adjust process menu.
Yes
No
No
No sound from SCART
No
SCART sound failure
Yes
No
Check IC1901 and its
peripheral parts.
Is output at pins (36) and (37) of
IC1901 normal?
Check IC1902 and its
peripheral parts.
Is output at pins (1) and (7) of
IC1902 normal?
Check their lines and their
peripheral parts.
Is input at pins (53) and (54) of
IC1901 normal?
Check IC1901 and its
peripheral parts.
Is output at pins (27) and (28) of
IC1901 normal?
Summary of Contents for LC-15B2EA
Page 20: ...23 LC 15B2EA 22 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H OVERALL WIRING DIAGRAM ...
Page 22: ...25 LC 15B2EA 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM Ë RC LED and OPERATION Unit ...
Page 23: ...27 LC 15B2EA 26 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 1 6 ...
Page 24: ...29 LC 15B2EA 28 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 2 6 ...
Page 25: ...31 LC 15B2EA 30 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 3 6 ...
Page 26: ...33 LC 15B2EA 32 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 4 6 ...
Page 27: ...35 LC 15B2EA 34 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 5 6 ...
Page 28: ...37 LC 15B2EA 36 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 6 6 ...
Page 29: ...39 LC 15B2EA 38 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë TUNER Unit 1 4 ...
Page 30: ...41 LC 15B2EA 40 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë TUNER Unit 2 4 ...
Page 31: ...43 LC 15B2EA 42 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë TUNER Unit 3 4 ...
Page 32: ...45 LC 15B2EA 44 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë TUNER Unit 4 4 ...
Page 33: ...46 LC 15B2EA 6 5 4 3 2 1 A B C D E F G H Ë INVERTER Unit ...
Page 35: ...48 LC 15B2EA 6 5 4 3 2 1 A B C D E F G H MAIN Unit Side A ...
Page 36: ...49 LC 15B2EA 6 5 4 3 2 1 A B C D E F G H MAIN Unit Side B ...
Page 37: ...50 LC 15B2EA 6 5 4 3 2 1 A B C D E F G H TUNER Unit Component Side ...
