Zenith XBV323 Series Service Manual page 53

E
Normal
NO
Audio output
when disc playback?
YES
TEST END
Audio
DAC received NO
correct data stream?
YES
Normal
NO
Audio DAC
out? (IC401)
YES
Check Audio filter, amplify, mute
circuit. (IC402 Application circuit)?
3-62
Check connection between MT1379
& Audio DAC. (Check VRST#, ACLK,
ABCK, ASDAT3)
Check the related circuit of
Audio DAC. (Check Audio
out Pin 14, 15,18,19)