Samsung LS15HAA - Troubleshooting; No Power (LS15 HAA;LS15 HAB)

4 Troubleshooting
4-1
4 Troubleshooting
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4-1 No Power(LS15HAA/LS15HAB)
When Pin 4 of CN600 is 0V
does proper DC 13V, 5V
appear at Pin 1, 2 and 6, 7 of
CN600 separately?
Change IP Board.
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Yes
Yes
No
When Pin 3 of IC602 is DC 5V
does proper DC 3.3V appear at
Pin 2 of IC602?
Check IC602 and related circuit.
Yes
No
When pin1 of IC600 is DC 5V
does proper DC3.3V appear at
Pin3 of IC600?
Check IC600 and related circuit.
Replace AD Board.
No
Yes