25
No sound (during the reception of TV broadcasting)
Does not the sound go out though the picture has come out when UHF/VHF is received?
MAIN UNIT:
YES
NO
Is the IF signal output from pin (8) and pin (9) of
TUNER(TU7001)?
NO
Check the tuner and its peripheral circuits. Replace
as required.
Is the IF signal sent to pin (AD19) and pin (AE19) of
IC U107?
Check the peripheral circuits between TU7001 &
U107.
YES
Refer to “No sound output in all modes”.
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