Section 2. Audio Part - LG LH-T6440A Service Manual

SECTION 2. AUDIO PART

❏ ELECTRICAL TROUBLESHOOTING GUIDE
1. Power check flow
INSERT
POWER CORD.
TURN ON
THE RED LED?
TURN POWER ON.
IS POWER ON?
DOES INITIAL
READ WORK?
DOES IT PLAY?
DOES IT OUTPUT
AUDIO?
OK
YES
YES
YES
YES
YES
NO
NO
CHECK POWER SUPPLY CIRCUIT .
NO
NO
CHECK TRACKING SERVO CIRCUIT.
NO
- 2-1 -
CHECK POWER PLUG
AND POWER SUPPLY CIRCUIT .
CHECK LASER CIRCUIT .
CHECK FOCUS CIRCUIT.
CHECK DISC.
CHECK AUDIO CIRCUIT.