Troubleshooting
4-4
Samsung Electronics
■ No Sound
Symptom
- Video is normal but there is no sound.
Major Checklist
- When the speaker connectors are disconnected or damaged.
- When the sound processing part of the Main Board is not functioning.
- Speaker defect.
Troubleshooting
Procedures
1
2
3
3
Is the cable connection between the Main
Board and the speaker properly connected?
Cable Connection
①
Check that the voltage of No.7,8 pin of
SMPS CN801 has 12V
Yes
No
Is the speaker output terminal of the Main
Board normal?
Yes
Replace the Speaker
Yes
②
③
Replace the SMPS
No
Replace the Main Board
No
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