Samsung CW29M066V7XXEC Service Manual page 77

Troubleshooting
6. CXA2180 Diagnosis
The Y/Pb/Pr signal is received from VSP9405B and CXA2151Q and the signal is output as R/G/B. It also outputs the V/H Drive,
E/W and performs the ABL and EHT operation.
If V-Drive output is not detected, check for an IC defect.
- Power supply : 5V, 9V
- Check for input defects :Y/Pb/Pr, H/V
- Check for output defects :R/G/B, ABL, EW, V/H-DRIVE
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