Samsung PS50Q97HDX/XEU Service Manual page 34

■ SMPS Troubleshooting
VA
Check the Other board (Image Board or Driver Board) or Cable.
Samsung Electronics
Power ON
Abnormal
STD_5V
Normal PS-ON
Abnormal
Multi
Normal VS-ON
Abnormal
VS
Normal
Check the ICB802, DB864, FB801, F801S
Check the SUB2, QX801,QX802
Check the
5.3V : ICX808, QX806
Abnormal
12V : ICX803
VG : ICX805
18Vamp : ICX804
Check the SUB1,QS801,QS802
Troubleshooting
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