Page 1
PDP TV Visual Troubleshooting Guide book
Version 1.0
Service Academy Part
Customer Service Operation
21.Apr.2006
Page 2
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]
Page 3
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
Page 4
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
Page 5
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 ]
Page 6
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 ]
Page 7
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 ㎝
Page 8
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 ]
Page 9
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 ]
Page 10
Black ADD Bar
Black ADD Bar
Check
Module
Black ADD BAR
• Applicable Model : ALL
• Main Check : Check Film connector between X-B/D and Control B/D
• Symptom : Black ADD Bar
• Remedy : Replace Module
Check the film connector between X-Board and Control Board
Broken Film
[ 7 ]
Page 11
Reddish
Reddish
Check
Wrong VSC Board DATA Reddish Screen
VSC-B/D
• Applicable Model : M(X)-42PZ90
• Main Check : Check the Data at White balance mode
• Symptom : Reddish screen
• Remedy : Change the Data
[ 8 ]
Page 12
Color Missing
Color Missing
Check
VSC-B/D
Missing Specific Color
• Applicable Model : ALL
• Main Check : Check Cable at VSC B/D and Settop Box
• Symptom : Missing Specific Color
• Remedy : Replace VSC B/D
Missing Specific Color
[ 9 ]
Page 13
Distortion
Distortion
Check
VSC-B/D
Screen Distortion
• Applicable Model : ALL
• Main Check : Check the Oscillation of VSC B/D
• Symptom : Normal OSD and Picture Distortion
• Remedy : Replace VSC B/D
Screen Distortion
[ 10 ]
Page 14
Mosaic distortion
Mosaic distortion
Check
VSC-B/D
Mosaic Screen
• Applicable Model : ALL
• Main Check : Check the Oscillation of VSC B/D
• Symptom : Mosaic Picture
• Remedy : Replace VSC B/D
[ 11 ]
Mosaic Screen
Page 15
Distortion / Smear
Distortion / Smear
Check
VSC-B/D
Screen Distortion
• Applicable Model : ALL
• Main Check : Check the Oscillation of VSC B/D
• Symptom : Distortion Picture
• Remedy : Replace VSC B/D
[ 12 ]
Smear
Page 16
No Raster
No Raster
Check
VSC-B/D
NO RASTER
• Applicable Model : ALL
• Main Check : Check the Location of VSC B/D ‘s SVC S/W
• Symptom : No Raster
• Remedy : Change the S/W location ( S/W upgrade)
Check the Position of SVC S/W
[ 13 ]
Page 17
Flicker
Flicker
Check
VSC-B/D
Flicker
• Applicable Model : ALL
• Main Check : Check the VSC B/D
• Symptom : Mal Discharge of Specific Color
• Remedy : Replace the VSC B/D
[ 14 ]
Flicker
Page 18
Flicker
Flicker
Check
Module Control B/D
Module Control Board Flicker
• Applicable Model : M(X)-42PZ90
• Main Check : Check the Control B/D and Micom Version
• Symptom : Flicker
• Remedy : Replace the Module control B/D
[ 15 ]
Page 19
Same Distance Bar
Same Distance Bar
Check
Module Control B/D
BAR with same distance
• Applicable Model : All
• Main Check : Check the Control B/D and Micom Version
•Symptom : Bar with same distance
•Remedy : Replace the Module control B/D
BAR with same distance
[ 16 ]
Page 20
Same Distance Bar
Same Distance Bar
BAR with same distance BAR with same distance
Check
Module Control B/D
• Applicable Model : All
• Main Check : Check the Control B/D and VSC Connection cable
• Symptom : Bar with same distance or Normal OSD with Mosaic picture
• Remedy : Replace the Module control B/D
[ 17 ]
Page 21
Flicker
Flicker
Flicker Flicker
Check
Y-B/D
• Applicable Model : All
• Main Check : Check the Vs, Vset-up, Y-B/D
• Symptom : No picture with Mal discharge
• Remedy : Replace the Y-B/D
[ 18 ]
Page 22
Flicker
Flicker
Flicker Flicker
Check
Y-B/D
• Applicable Model : All
• Main Check : Check the Vs, Vset-up, Y-B/D
• Symptom : No picture with Mal discharge
• Remedy : Replace the Y-B/D
[ 19 ]
Page 23
Flicker
Flicker
Flicker Check 15V LINE B+ Voltage
Check
Y-B/D
• Applicable Model : M(X)-42PZ90
• Main Check : Check the 15V Line falls to (8~9V) supplied to the module control B/D
• Symptom : No picture with Mal discharge
• Remedy : Replace the Y-B/D & Z-B/D
[ 20 ]
Page 24
Curtain Bar
Curtain Bar
Check
With signal status No signal status
Y-DRV
• Applicable Model : All
• Main Check : Check the Diode of SUS-UP port and SUS-DOWN Port
• Symptom : Curtain Bar’s position may move depended on
NO SIGNAL OSD
• Remedy : Replace the Y-B/D
[ 21 ]
Page 25
Horizontal Bar
Horizontal Bar
Check
Y-DRV
Horizontal Bar
• Applicable Model : All
• Main Check : Check the Y-B/D or connector status for module
• Symptom : Horizontal Bar
• Remedy : Replace the Y-B/D or Dust of connection film
between Y-B/D and Module
With signal
[ 22 ]
Page 26
Dark Screen & Mal Discharge
Dark Screen & Mal Discharge
Check
Poor connection of Connector Z-B/D and X-B/DDark Screen and Mal discharge
Z-B/D
• Applicable Model : M(X)-42PZ90
• Main Check : Check the Cable or B+ port of Z-B/D
• Symptom : Dark Screen and Heavy Noise
• Remedy : Check the Z-B/D and Cable
[ 23 ]
Page 27
Dark Screen & Mal Discharge
Dark Screen & Mal Discharge
Check
Z-B/D
Dark Screen and Mal discharge
• Applicable Model : All
• Main Check : Check the Cable or B+ port of Z-B/D
• Symptom : Dark Screen and Heavy Noise
• Remedy : Check the Z-B/D and Cable
Dark Screen and Mal discharge
[ 24 ]
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