Read LG 32LG50D (CHASSIS:LT81D) Service Manual online
- 16 -
4. In case of no sound
(1) Symptom
1) LED is Green.
2) Screen display appears but there is no sound.
2) Screen display appears but there is no sound.
(2) Procedure check
Is there no sound for
all input(modes)?
Is there no sound
onlt in HDMI?
No
Yes
Download
the EDID data
Check the signal after
CAX2069 refer to circuit diagram
No
Is ther no sound only in
Component, RGB mode?
No
YES
YES
Is there no sound
only in RF?
Check the
Tuner IN/OUT
No
YES
YES
Is there no sound only
in AV mode?
Is the output of CXA2069
(IC300) normal?
No
YES
Is the MSP4450K(IC500)
operating normally?
Replace the IC500
No
IS the NTP300A(IC501)
operatioing normal?
Replace the IC501
No
YES
Replace the Main B/D
YES
No
Replace the CXA2069
Is the speaker on?
Set on speaker
on in menu.
No
Is the speaker cable
normal?
Check the
speaker cable.
No
Yes
Click on the first or last page to see other 32LG50D (CHASSIS:LT81D) service manuals if exist.