15
TROUBLE SHOOTING GUIDE
D. AUDIO CIRCUIT
D-1. PB MODE
No sound in the PB mode
YES
Is the output at pin77 of
IC301?
NO
Is +5V supplied to pin76 of
IC301 and to pin2 of
T201?
NO
Check IC802 and adjacent
circuit
YES
YES
Check R217, R218, L602
and pattern
Is voltage less than 0.2V
at pin80 of IC301?
NO
Are CLK and DATA
applied to pin63 and 64 of
IC301?
YES
YES NO
Check IC501
Is collector of Q204 GND?
NO
Check Q202, Q203 and
Q204
YES
Check pattern and AC
Head
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Содержание DV-S123W Series
Страница 33: ...32 PRINTED CIRCUIT BOARD 1 PCB MAIN All manuals and user guides at all guides com...
Страница 34: ...33 PRINTED CIRCUIT BOARD 2 PCB POWER SMPS All manuals and user guides at all guides com...
Страница 35: ...34 CIRCUIT DIAGRAM 1 CONNECTION DIAGRAM DV S103W S103A S103N All manuals and user guides at all guides com...
Страница 37: ...36 CIRCUIT DIAGRAM 3 SERVO SYSCON CIRCUIT DV S103W All manuals and user guides at all guides com...
Страница 38: ...37 CIRCUIT DIAGRAM 4 AV INPUT OUTPUT CIRCUIT DV S103W All manuals and user guides at all guides com...
Страница 40: ...39 EXPLODING VIEWS PARTS LIST 1 PACKING AS All manuals and user guides at all guides com...
Страница 43: ...42 EXPLODING VIEWS PARTS LIST DV S123W FRONT PANEL ASSEMBLY All manuals and user guides at all guides com...
