Samsung PL50P5HX/STR Service Manual page 90

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