Samsung 730MP - Troubleshooting; 5-1 No Power

5 Troubleshooting
730MP 5-1
5 Troubleshooting
5-1 No Power
Does proper DC14V appear
at C600(+14V_IN)?
Check IP board.
Yes
No
Does proper DC3.3V appear
at R7088?(MAIN_PW)
Check related circuit of IC400.
No
check IC400(scaler) or
IC402(memory).
Yes
Does proper 5V appear at
FTR612?
Check related circuit of IC604.
Yes
Yes
No
Does proper 3.3V appear at
FT608?
Check related circuit of IC603.
No
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