Samsung WS32Z419D8**EU Service Manual page 83

Troubleshooting
5. CX2165 Diagnosis
The Y/Pb/Pr signal is received from VCT69xyP 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 : R/G/B, H/V
- Check for output defects :
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