Samsung PS43D490A1XZN Service Manual page 24

4. Troubleshooting
■ No Sound
•
Symptom
•
•
Major Checklist
•
•
Diagnostics
4-6
Video is normal but there is no sound.
When the speaker connectors are disconnected or damaged.
When the sound processing part of the Main Board is not functioning.
Speaker defect.
SMPS not supplying voltage to the main board.
Speaker
<43" PDP>
CN801
Speaker cable
<51" PDP>
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