Troubleshooting - Samsung 242MP Service Manual

6 Troubleshooting

6-1 No Power
Does proper DC12V appear at
C614(+12V _IN)?
1
YES
Does proper DC5V appear at
FT670(+5V _IN)?
2
YES
Does proper DC5V appear at
FT671(+5V _STDIN)?
YES
Does proper DC12V appear at
FT672(+12V _MAIN)?
YES
Does proper DC5V appear at
FT609(+5V _VCT)?
YES
Does proper DC3.3V appear at
FT619(+3.3V _LIVE)?
YES
Check IC300(Scaler) or IC3000(Memory)
NO
Check Adapter
NO
Check Adapter
NO
Check Adapter
NO
Check related circuit of IC602 or IC300
NO
Check related circuit of IC603 or IC300
NO
Check related circuit of IC606
6 Troubleshooting
6-1