Troubleshooting
4-8 Samsung Electronics
■
No Sound (42")
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
Is the cable connection between the
Main Board and the speaker
properly connected?
Connect the cable properly or
replace the cable, if necessary.
Is the output voltage of SMPS normal?
(CN801 #13)
Replace the SMPS
Replace the Main Board
Is the speaker output terminal
of the Main Board normal?
Replace the Speaker
①
②
③
Yes
No
No
No
Yes
Yes
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