LG 50PC1D Series, Service Manual

Page: 21 / 58

- 21 -
3. In case of no sound
(1) Symptom
1) LED is white.
2) Screen display but sound is not output.
(2) Check following
Is the SPK cable
normal?
Is the SPK cable
connected well?
Cable inserts well.
No
No
Is connected
the Flat cable correctly?
Cable inserts well.
No
Replace IC404.
Replace SPK cable.
Yes
Yes
Yes
Is the RF/ AV/
Component/ RGB/
HDMI sound normal?
No
Is the MSP4410K
(IC404) normal?
Replace IC403.
Yes
Is the NSP6241
(IC403) normal?
Replace IC405.
Yes
Is the TAS5122
(IC405) normal?
Replace IC800.
Yes
Yes
No No No
No
Is the FLI8532
(IC404) normal?
Replace
VSC B/D.