Electrical Troubleshooting Guide; Smps Part - LG CM1530 Service Manual

ELECTRICAL TROUBLESHOOTING GUIDE

1. SMPS PART

PVDD
F901 nomal?
D901 ~ D904 nomal?
T901 nomal?
Is VCC (9 V ~ 18 V)
supplied to IC901 pin2.
D907 nomal?
Replace ZD902.
YES
YES
YES
YES
YES
YES
NO
Replace F901 (Use same type fuse).
NO
Replace D901 ~ D904.
NO
NO
Check or replace IC902.
NO
3-2
Replace T901.
Replace D907.