Advertisement
E
Normal
Audio output
when disc playback?
Normal
IR. VFD & Front
pannel key
functions?
TEST END
Audio
DAC received
correct data stream?
Normal
Audio DAC
out? (IC702)
Check Audio filter, amplify,
mute circuit.
Communications
between IR.VFD Front pannel key
& MT1389 & Front u-com(IC901)
is normally?
Check the cable connection
on Front pannel.
Check connection between MT1389
& Audio DAC. (Check VRST#, ACLK,
ABCK, ASDAT3)
Check the related circuit of
Audio DAC. (Check Audio
out Pin 14, 15,18,19)
Check communi cation lines
on MT1389.
Advertisement
