Samsung CL-21M40MQ Service Manual page 43

Troubleshooting
4. TDA7297SA (Audio Processor) Diagnosis
This receives the signal from the MICOM(TDA9377PS/N3) and outputs the signal in 10W + 10W sound.
- Power supply : 12.5V
- Check for input defects : AMP-R,AMP-L
- Check for output defects : L+, L-, R+,R-
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