LG RZ-37LZ30 - TROUBLE SHOOTING; Troubleshooting Flowcharts

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TROUBLESHOOTING
No Power
(LED Indicator off)
Change IC1305
Change IC901, IC905
Change LED Ass'y
Check SMPS output
Check P201 Connector
Change SMPS Board
Check SMPS
Output
Stby 5V, Stby 3.3V,
18V, 3.3V
Fail
Check in
Input B+
IC901 & IC905
Fail Fail
Pass
Pass
Pass
Check IC1305
Check index
STBY 5V
(LED ASS'Y)
Fail
Pass