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Troubleshooting - LG RZ-37LZ30 Service Manual

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No Power
(LED Indicator off)
Check SMPS
Output
Stby 5V, Stby 3.3V,
18V, 3.3V
Pass
Check in
Input B+
IC901 & IC905
Pass
Check index
STBY 5V
(LED ASS'Y)
Pass
Check SMPS output
Check P201 Connector

TROUBLESHOOTING

Fail
Fail
Check IC1305
Change IC1305
Fail
- 12 -
Change SMPS Board
Fail
Change IC901, IC905
Pass
Change LED Ass'y

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