Read LG 26LC2R / 32LC2R (CHASSIS:LP61C) Service Manual online
5. No Sound
(1) Symptom
1) Front LED is Green
2) The Set display a screen, but a sound doesn’t output
2) The Set display a screen, but a sound doesn’t output
(2) Check process
1) Speaker part
2) Main board part
- 25 -
Yes
No
Yes
No
No
No
No
Are Speaker Cables Good?
Is sound at HDMI
Good?
Good?
Is EDID download
good?
good?
Download EDID
data once more.
data once more.
Yes
Is IC401 good?
(AD9381)
(AD9381)
Exchange IC401
No
No
No
No
No
Is sound at
Scart1/2 (or
Component2)RGB,
or Side AV Good?
Scart1/2 (or
Component2)RGB,
or Side AV Good?
Are good some
elements (C, R, L,
or Diode) at Sound
path?
elements (C, R, L,
or Diode) at Sound
path?
Is IC800 good?
(Switching IC)
(Switching IC)
If it dead or short,
exchange this
elements
exchange this
elements
No
No
Is sound at RF, AV,
or Component1
Good?
or Component1
Good?
Are good some
elements (C, R, L,
or Diode) at Sound
path?
elements (C, R, L,
or Diode) at Sound
path?
If it dead or short,
exchange this
elements
exchange this
elements
Yes
Yes
Is IC601 good?
(VCT-P)
(VCT-P)
Exchange IC601
Is IC801 good?
(Amplifier)
(Amplifier)
Exchange IC801
Yes
Exchange IC800
Exchange the cable
Insert the cable exactly
Are Speaker units good?
Are Speaker Cables
connect normally?
connect normally?
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