Electrical Troubleshootihg Guide & Waveform(Cd Part) - LG LM-U360 Service Manual

❏ ELECTRICAL TROUBLESHOOTIHG GUIDE & WAVEFORM(CD PART)
I POWER CHECK GUIDE
POWER ON
DOES CD
APPEAR AT FLD?
Y
DOES DISK1
APPEAR AT FLD?
Y
DOES NO DISC OR
TIME ARE APPEARED
AT FLD?
Y
OK
CHECK THE
VOLTAGE OF EACH PIN
ON P5701.
Y
CHECK CD MD MODULE.
CHECK CONNECTOR
P7501.
PUSH KARAOKE
CD BUTTON
N
DOES IT
APPEAR CD
ERROR AT FLD?
Y
N
CHECK
CONNECTOR (P4703,P4004,
P5701)
N
POWER ON
DOES AUX,FM 87.5
APPEAR AT FLD?
N
- 2-22 -
Y
N
RECONNECT IT.
OK.