Table of Contents
Advertisement
4. Troubleshooting
4-1-9. No Sound
Symptom
Video is normal but there is no sound..
-
When the speaker connectors are disconnected or damaged.
-
Major
When the sound processing part of the Main Board is not functioning.
-
checkpoints
Speaker defect..
-
7
Diagnostics
Caution
Make sure to disconnect the power before working on the IP board.
4-22
Check the source and
check the connection of sound cable
(Comp/PC/DVI to HDMI) ?
Yes
Does the sound data appear at
TP-AV_SR_IN, AV_SL_IN (AV R/L)
TP-PC_SR_IN, PC_SL_IN (PC R/L)
TP-SC_SR_IN, SC_SL_IN (SCART R/L)?
Yes
Does the DC B3.3V, B12VS
appear at BD202, TP- B13VS?
Yes
Does the sound data appear at
TP - L-, L+, R-, R+ ?
Yes
Replace speaker ?
TBD
No
Input the sound source properly.
Check CN801, CN901, JA701.
No
Change the Main Assy.
No
Change the Main Assy.
Check IC1102(SX1).
No
Check IC1301(Sound AMP).
Change the Main Assy.
No
Please, Contact Tech support.
Advertisement
Table of Contents
