Samsung WS32Z419D8**EU Service Manual page 81

Troubleshooting
3. TDA7297(Audio AMP) Diagnosis
The signal is received from the Audio Processor (VCT69xyP) and sound is output at 10W + 10W power.
- Power supply :15V
- Check for input defects : L/R
- Check for output defects : L+, L-, R+, R-
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