LG DK676X - Page 19

3-9
E
Audio AMP IC received
correct data stream?
Normal Audio output
when disc playback?
Normal IR.VFD & Front
pannel key functions?
TEST END
NO
NO
YES
YES
YES
YES
Check connection between
MT1389E & Audio AMP IC.
NO
Normal Audio AMP IC out?
YES
Check the related circuit of
Audio AMP IC.
NO
Check Audio filter,
mute circuit.
Communications between
IR.VFD Front pannel key &
MT1389E is normally?
NO
Check communication lines
on MT1389E.
Check the cable connection
on Front pannel.