DOWNLOAD LG 42LC2DR (CHASSIS:LB61C) Service Manual ↓ Size: 7.49 MB | Pages: 30 in PDF or view online for FREE

Model
42LC2DR (CHASSIS:LB61C)
Pages
30
Size
7.49 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42lc2dr-chassis-lb61c.pdf
Date
PREV: LG 42LC2D (CHASSIS:LD61C) Service Manual

LG 42LC2DR (CHASSIS:LB61C) Service Manual ▷ View online

- 21 -
3. When sound is abnormal
(1) Symptom
1) LED is green.
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 the Flat cable
connected well?
Is the RF(Digital)
sound normal?
Cable inserts well.
No
No
Replace the IC200.
Replace SPK cable.
Yes
Yes
Yes
Is the RF(Analog) / AV/
Component L-R sound
normal?
Is the CS5330A(IC1000),
MC33078(IC1001),
Scaler(IC401) normal?
No
No
Is the MSP4450K
(IC200) normal?
Replace the IC400.
Yes
Is the NSP2100
(IC400) normal?
Replace the IC402.
Yes
Is the TAS5122
(IC402) normal?
Replace the IC400.
Yes
Yes
No
No
No
No
Is the Scaler
(IC401) normal?
Replace 
VSC Digital B/D.
Yes
Yes
Replace the IC.
No
Is the SPDIF sound
normal?
Is the XC95288(IC300),
CS8415A(IC1003),
Scaler(IC401) normal?
No
Replace the IC.
BLOCK DIAGRAM
- 22 -
  
 
 
 
 
- 23 -
EXPLODED VIEW
010
020
050
100
130
11
0
060
070
090
080
120
140
160
150
030
040
070
071
071
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