LG PDP TV Training Manual
PDP TV Visual Troubleshooting Guide book
Version 1.0
Service Academy Part
Customer Service Operation
21.Apr.2006
PDP Visual Troubleshooting Index
No Power No Raster
LED Off
[ p.1 ]
Lots of ADD BAR
LED Green
[ p.2 ]
Lots of ADD BAR
[ p.5 ] [ p.5 ]
Missing Specific Color
[ p.9 ]
Missing Specific Color
[ p.9 ]
Red
Color ADD BAR Black ADD BAR (2~3cm)
[ p.3 ] [ p.4 ]
Color ADD BAR
Black ADD BAR
Black ADD BAR (2~3cm)
[ p.4 ]
[ p.6 ] [ p.7 ] [ p.8 ]
Screen Distortion
[ p.10 ]
Screen Distortion
[ p.10 ]
[ p.8 ]
Reddish
Mosaic
Screen Distortion
[ p.12 ]
Screen Smear
[ p.12 ]
[ p.14 ]
Flicker
[ p.15 ]
Flicker
Many BAR Same distance
[ p.16]
PDP Visual Troubleshooting Index
Flicker
[ p.18 ]
Curtain Bar [ No Signal ]
[ P.21 ]
Many BAR Same distance
[ P.17]
Flicker
[ p.18 ]
Curtain Bar [ Signal ]
[ P.21 ]
Dark Screen &Mal discharge
[ P.23 ]
Flicker
[ p.19 ]
Horizontal Bar [ No Signal ]
[ P.22 ]
Dark Screen & Mal discharge
[ P.24 ]
Flicker
[ p.20 ]
Horizontal Bar [ Signal ]
[ P.22 ]
Dark Screen & Mal discharge
[ P.24 ]
[ P.13 ]
No Raster
No Power
No Power
No Power
(LED OFF in ST-BY Mode )
Check
PSU
Check the Power Supplying status and Main Power
S/W ON
Check EMI Board Fuse
Fuse should be 15A
[ 1 ]
Fuse 15 A
No Raster
No Raster
Check
Y-B/D
After Power On 2 ~ 3sec Automatically Off
( Green LED Turns to Red )
• Applicable Model : ALL
• Main Check : Check the B+ Voltage at Each Port ( VS, VA, V-Setup )
• Symptom : After Power on 2 ~ 3 Sec, Automatically Power Off ( LED Turns to Red )
• Remedy : Replace Y- B/D
Normal Screen
[ 2 ]
Color ADD Bar
Color ADD Bar
Check
Module
ADD Bar with Specific Color
• Applicable Model : ALL
• Main Check : Check One-Line with a specific color when changing R,G,B
• Symptom : One-Line ADD Bar ( Specific Color ex. Magenta, Cyan, Yellow )
• Remedy : Replace Module
ADD Bar with Specific Color
[ 3 ]
Black ADD Bar
Black ADD Bar
Check
Module
Black ADD BAR width 2 ~ 3 ㎝
• Applicable Model : ALL
• Main Check : Check 10 Ω register in front of COF IC
• Symptom : Black ADD BAR width 2~3 cm
• Remedy : Replace Module
[ 4 ]
Black ADD BAR width 2 ~ 3 ㎝
Lots of ADD Bar
Lots of ADD Bar
Check
Module
A Series of ADD BAR
• Applicable Model : ALL ( KK Module )
• Main Check : Check Film connection in front of COF IC
• Symptom : A Series of ADD Bar
• Remedy : Replace Module
A Series of ADD BAR
[ 5 ]
Color ADD Bar
Color ADD Bar
Width 5 ~ 6 Cm
Magenta, Cyan, Yellow
Check
Film Connector
Color ADD Bar
• Applicable Model : ALL
• Main Check : Check Film connector between X-B/D and Control B/D
• Symptom : ADD Bar width 5~6 cm(specific color, magenta, cyan, yellow)
• Remedy : Replace Film Connector
Check the Film Connector between X-B/D and Control
B/D
[ 6 ]
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