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Sanyo HV-DX3E Service Manual page 21

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B. No Hi-Fi Playback audio(PLAY MODE)
Is 12V obtained at IC251 pin#34?
YES
Is 5V obtained at IC251 pin#40?
Is Audio signal at IC251 pin#41?
YES
Is Audio signal output at IC251
pin#16,17?
YES
Is Audio signal output at IC601 pin
#3, 13?
YES
Check Output JACK.
NO
NO
NO
Are CLK and DATA obtained at
IC251 pin#42,43?
NO
Comparing with switching table, are SWA, B CTL SIGNAL
YES
Replace IC601.
20
YES
right at IC601 pin #9,10?
Check POWER circuit.
Check A.SW at IC501
pin#19.
Replace IC251.
NO
Check IC501.

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