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..
-
Diagnostics
6
7
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-COMP_SL_IN, COMP_SR_IN(COMP/AV)?
TP-PC_SL_IN, PC_SR_IN(PC/DVI)?
TP-SC_SL_IN, TP_SR_IN(SCART)?
Yes
Does the B13V(B13V1) appear?
Yes
Does thd I2S data appear at R1390?
Yes
Does the sound data appear
TP-SPK_L-, SPK_L+,
SPK_R-, SPK_R+?
Yes
Replace speaker.
No
Input the sound source properly.
Check CN802, CN901, JA701_EU.
No
Change the main assy.
No
Change the Main Assy
No
CHECK IC1102(SETD-10).
Change the main assy.
No
Check IC1301(Sound AMP)
Change the main assy.
No
Please, Contact Tech support.
Advertisement
Table of Contents
