Philips 32MF338B/27, Service Manual

Page: 30 / 93

30 FUZ2.0U LA
Are the audio (L/R) signals outputted to the
Pin(3, 4) of CN303?
No
Yes
Check the line between Pin(3, 4) of CN303 and
each Audio input terminal(JK752, JK7501, JK7702,
JK7705, JK7712, JK7714), IC7001 and IC7301, and
service it if defective.
Audio is not outputted normally. (Audio input terminals)
FLOW CHART NO.23
No
Are the audio(L/R) signals outputted to the Pin(14,15)
of IC701?
No
Yes
Are the audio data signal outputted to the Pin(6) of
CN302?
Yes
Check IC701 and the periphery circuit,
and service it if defective.
Are the audio(L/R) signals outputted to the Pin(1,7)
of IC702?
No
Yes
Check IC702 and the periphery circuit,
and service it if defective.
Are the audio(L/R) signals outputted to the Pin(1,2)
of CN801 and CN802?
No
Yes
Check SP801,SP802, and their periphery circuit,
and service it if defective.
Check IC801 and the periphery circuit,
and service it if defective.
Replace Digital Main Board Unit.