3-18
ELECTRICAL TROUBLESHOOTING GUIDE
NO
NO
YES
YES
Check connection between
MPEG and Audio AMP
Check Audio filter,
amplify, mute circuit.
NO
NO
YES
Replace Remocon receiver
RC901
YES
YES
TEST END
Check connection IR from
SMPS board to Main board
Normal
Audio output when
disc playback?
Audio
AMP received correct
data stream?
Is the IR signal and level
to Mpeg is normally?
Is the Remocon
function?
NO
Check the related
circuit of Audio AMP.
Check 12V power supply
from SMPS board
Normal
Audio AMP out?
E
jomi