LG 50PT490-ZD (CHASSIS:PD11K) Service Manual ▷ View online
Making
Revision
PDP TV
Symptom
A. Picture Problem
PDP Module Label Information
Repair Process-Reference data
PDP Module Label Information.
A4
A4
①
②
③
④
⑤
⑥
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
⑪
⑫
⑬
⑭
Vy Vsc
Vzb
① Model Name
② Bar Code
(Code 128, Contains the manugacture No.)
(Code 128, Contains the manugacture No.)
③ Manugacture No.
④ Adjusting Voltage(DC Va, Vs)
⑤ Adjusting Voltage (Set up/-Vy/Vsc/Ve/Vzb)
⑥ The trade name of LG Electronics
⑦ Manufactured date(Year & Month)
⑧ Warning
⑨ UL Approval Mark
⑩ UL Approval No.
⑪ Model Name
⑫ Max. Watt
⑬ Max. Volts
⑭ Max. Amps
Making
Revision
PDP TV
Symptom
A. Picture Problem
Check & Adjust –V
Y
,V
SC
,V
ZB
voltage(50R3)
Repair Process-Reference data
Voltage Check & Adjustment :
50R3
1. Vsc (
150V
) on Y-Sus B/D
- Check Point:
R324
- Adjustment Point:
VR301
2. -Vy (
-190V
) on Y-Sus B/D
- Check Point:
R334
- Adjustment Point:
VR302
A5
<Module Label>
A5
-Vy adjustment
YSUS board
Fuses
Vsc adjustment
Vzb
Vy Vsc
Making
Revision
PDP TV
Symptom
A. Picture Problem
Check & Adjust –V
Y
,V
SC
,V
ZB
voltage(50R3)
Repair Process-Reference data
3. VZB (
115V
) on Z-Sus B/D
. Check Point:
R156
- Adjustment Point:
VR204
Voltage Check & Adjustment :
50R3
<Module Label>
A5
A5
ZSUS board
Vzb
Vy Vsc
ZSUS board
Vzb adjustment
Making
Revision
PDP TV
Input
Block
Digital TV Video Problem
Check RF Cable
Y
Check TU300 Power
5V(C304), 3.3V(C302),
1.2V(C300)
Check Voltage
5V : IC605 Output
3.3V : IC600 Output
1.2V:IC301 Output
Y
N
Check Video color
Check Monitor Out Video
(Scart out)
Check other input / OSD
Check IIC Line
Check TU_SCL/SDA Line
N
Replace Tuner
N
Y
N
Y
Check Module
N
Y
Change MSTAR(IC400)
Y
A6-1
Repair Process-Reference data
A6
Click on the first or last page to see other 50PT490-ZD (CHASSIS:PD11K) service manuals if exist.