No Sound
Symptom
Video is normal but there is no sound.
•
Major
checkpoints
When the speaker connectors are disconnected or damaged.
•
When the sound processing part of the Main Board is not functioning.
•
Speaker defect.
•
Diagnostics
Power indicator LED is off.
Lamp(Backlight) on, no video ?
No
Check a set in the ‘Stand-by mode’.
Yes
Check the source and check the
connection of sound component cable?
Y, Pb, Pr
No
Input the sound source properly.
Yes
1
Check the sound date at ?
AV1, COMP1
No
Check the Component Gender.
Change the Main Assy.
Yes
2
Check the DC B13VS at ?
BD211, BD214
No
Change the Main Assy.
Yes
2
Sound data at ?
- L-, L+, R-, R+.
No
Change the Main Assy.
Yes
Check the LVDS cable?
Replace the T-con / LCD panel?
No
Please, Contact tech support.
Caution
Make sure to disconnect the power before working on the IP board.
4-13
4. Troubleshooting