LG MICRO Hi-Fi SYSTEM Service Manual page 23

DVD ELECTRICAL TROUBLESHOOTIHG GUIDE
1. POWER PART CHECK GUIDE
POWER ON
YES
Select the DVD mode
YES
Does DVD
appear at FLD?
YES
Does no disc or
time are appeared at
FLD?
YES
OK
Does it
NO
appear DVD error at
FLD?
YES
Check connector
(P7904, P7905)
YES
Reconnect
NO
Check the voltage of each
pin on P7905 9,10pin
YES
Check DVD MD module
3-10
NO
Check an Audio micom