Read LG 60PC4R-TB (CHASSIS:PP7AB) Service Manual online
- 20 -
4. In case of no sound
(1) Symptom
1) LED is White
2) Screen display appears but there is no sound.
2) Screen display appears but there is no sound.
(2) Procedure check
No
No
No
All input(mode)
is no sound?
Is there no sound only
for HDMI?
Is there no sound only
for AV?
Replace the
IC401
Replace the IC401
Replace the IC611
Replace the
VSC B/D
Set speaker on in the menu.
Download the EDID data
Check the Speaker Cable.
No
Is the Speaker on?
No
Is the speaker
cable normal?
cable normal?
No
Is the IC401
operating normally?
No
Is there no sound only
for RF?
Check the Tuner IN/OUT
No
No
No
Replace the IC402
No
No
No
Check the signal after
IC611 refer to circuit diagram
Is the output
52nd&53rd of IC611
normal?
Yes
Yes
Yes
Yes
Yes
Yes
Is the
IC401 operating
normally?
Is the
IC402 operating
normally?
Click on the first or last page to see other 60PC4R-TB (CHASSIS:PP7AB) service manuals if exist.