
3-8
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
“HELLOW” displayed
Continue at Power On
Check PVM04 pin40
YES
YES
NO
IC101 pin J25 : ?
(/XRST)
Replace X200
YES
NO
X200 : Clock oscillated?
(27MHz)
Check IC102 (Flash Memory) & IC101
YES
NO
IC102 Pin 26 : ?
IC102 pin 28 : ?
IC101 DEFECT
R314, R315 : ?
NO
Check MECHA
3. SYSTEM CIRCUIT PART
DISC not recognized
Check SMPS
YES
YES
NO
Check Driver Power?
5V, 12V
Change MEDIA TEST
YES
NO
Check Connector
4. DISC NOT RECOGNIZED
ELECTRICAL TROUBLESHOOTING GUIDE