Troubleshooting - LG RT-20LA90 Service Manual

No power
(LED indicator off)
Check 15V or 5V
of Lips
Pass
Check Output of
IC1107, IC104
Pass
Check LED Assy
Pass
Check P1100, P210 Connector

TROUBLESHOOTING

:[A]Process
Check short of main B/D
or Change Lips
Fail
Check Output of
Change IC1107, IC1104
Fail
Change LED Assy
Fail
- 15 -
Q1100
Pass
Change Q1100
Fail