Samsung PS42V6SX/XEH, Service Manual

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Troubleshooting
Samsung Electronics 6-5
6-2-4 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 Video Board is out of order.
- Speaker defect.
- When setting the volume to 0 (Nonsense).
Troubleshooting
Procedures
Is the cable connection between
the Video Board and the
speaker properly connected?
Connect the cable properly or
replace the cable, if necessary.
Is the speaker output terminal
of the Main Board normal?
Replace the Y Drive Board
Replace the DC-DC SMPS
Replace the X Drive Board
Replace the Logic Drive Board
Replace the Y Buffer Drive Board
No
No
Yes
Yes