DOWNLOAD LG C42PW120-WA (CHASSIS:PC21A) Service Manual ↓ Size: 5.81 MB | Pages: 33 in PDF or view online for FREE

Model
C42PW120-WA (CHASSIS:PC21A)
Pages
33
Size
5.81 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
c42pw120-wa-chassis-pc21a.pdf
Date
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LG C42PW120-WA (CHASSIS:PC21A) Service Manual ▷ View online

Making 
6-2
Revision
1/9
PDP TV
Symptom
Power-Up Boot Fail
2012. 7 . 25
Revision 
Check  P201 All
Voltage Level (17V, 5V)
Check Power connector
OK ?
Replace Power board
Y
N
Y
N
Check IC204
Voltage Level Multi 3 3V
Replace L204
N
Check  IC207 (pin2) Output
Voltage Level (2.5V) 
Replace  IC207
N
Y
Voltage Level Multi_3.3V
Y
Check IC206 (pin2)
Voltage Level STBY_3.3V
Replace IC206
N
Making 
6-2
Revision
PDP TV
Input
Block
AV Video Problem
2/9
2012. 7 . 25
Revision 
Check input signal format
Is it supported?
Check AV Cable for damage or open 
conductors
Y
Check AV port of JK408
Replace connector
N
Y
Check signal line
JK1002-Video : R161,C115
Replace Resistor or Cap
Y
N
Replace S7LR(IC200)
※ Measured signals depend on the input signal.
Y
Making 
6-2
Revision
PDP TV
Input
Block
RGB(D-Sub) Video Problem
3/9
2012. 7 . 25
Revision 
Check input signal format
Is it supported?
Y
Check RGB Cable 
conductors for damage
Y
Check JK400
Replace connector (P900).
Y
N
Check signal, Hsync, Vsync
R400, R401
Check IC903 Input/Output
Check signal
N
Y
N
Check signal
R162,R164,R166
C108, C110, C112
Replace R162,R164,R166
C108, C110, C112
N
Y
Replace S7LR (IC200)
※ Measured signals depend on the input signal.
Making 
6-2
Revision
PDP TV
Input
Block
DVI Video Problem
4/9
2012. 7 . 25
Revision 
Check input signal format
Is it supported?
Check DVI Cable for damage or open 
conductors
Y
Check EDID D/L
Re-Download EDID
Y
Y
N
Check IC300 110 117 Pin
Replace Connector
Y
N
Check JK301  
for proper connection or damage
N
Check IC300 110~117 Pin
(HDMI Switch Output)
Replace IC300
Replace S7LR (IC200)
Y
Replace S7LR (IC200)
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