DOWNLOAD LG 50PZ550-ZA / 50PZ550A-ZA / 50PZ550N-ZA (CHASSIS:PD11A) Service Manual ↓ Size: 12.89 MB | Pages: 73 in PDF or view online for FREE

Model
50PZ550-ZA 50PZ550A-ZA 50PZ550N-ZA (CHASSIS:PD11A)
Pages
73
Size
12.89 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
50pz550-za-50pz550a-za-50pz550n-za-chassis-pd11a.pdf
Date
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LG 50PZ550-ZA / 50PZ550A-ZA / 50PZ550N-ZA (CHASSIS:PD11A) Service Manual ▷ View online

ⓒ LG Electronics. Inc.2010
Making 
전자 - 6-2
Revision 
PDP TV
Symptom
A. Picture Problem
PDP Module Rom Ver. Checking method
Repair Process-Reference data
A15
▣ Check by using Rom Label on control board
Rom ver. Label
▣ Check by using SVC Remote controller
Press “In-start” →Press ”0413”
→ Select Panel Control → Check Module Rom ver.
※Refer to the Module Rom upgrade manual 
for Rom upgrade.
USB Type Jig
A15
2010. 11. 16
ⓒ LG Electronics. Inc.2010
Making 
전자 - 6-2
Revision 
A16
PDP TV
Symptom
A. Picture Problem
Y Drive B/D Checking method(50R1)
Repair Process-Reference data
A16
▣
Y drive board
※ Check all output pins of scan IC (connector) using DMM.
Input signal connector
Scan IC
※ DMM (Digital Multi-Meter)
2010. 11. 16
ⓒ LG Electronics. Inc.2010
Making 
전자 - 6-2
Revision 
PDP TV
Symptom
A. Picture Problem
(Half picture) X- B/D Checking method(50R1)
Repair Process-Reference data
A18
A18
▣
Half / partly display (or abnormal display)
※ Check connections (TCP - X board, CTRL board - X board)
-. Check Va input voltage.
(P121, P120, P220, P221, P320 : Power connector of the X board)
-. Check cables between CTRL board and X board.
-. Replace the X B/D.
-. Check TCP connection after X B/D replacement. 
▣
Connections between panel and X B/D
-. Right display (Picture 1.) ↔ Check/replace right  X B/D
-. Both ends display (Picture 2.) ↔ Check/replace center X B/D 
-. Left display (Picture 3.) ↔ Check/replace left X B/D
Picture 1.
Picture 2.
Picture 3.
Half 
display
(abnormal)
Partly 
display
(abnormal)
abnormal
abnormal
Va
Va
Va
from CTRL
from CTRL
from CTRL
2010. 11. 16
ⓒ LG Electronics. Inc.2010
Making 
전자 - 6-2
Revision 
PDP TV
Symptom
A. Picture Problem
Defect type cause by PDP Module
Repair Process-Reference data
A19
Symptom picture
defects description
To action
Regular vertical lines
1. Check connection
(CTRL B/D, X B/D)
2. Check CTRL B/D
3. Replace CTRL B/D
Vertical lines or Bar
1. Check connection
(CTRL B/D, X B/D)
2. Check CTRL B/D
3. Replace CTRL B/D
Many irregular vertical lines
1. Check connection
(CTRL B/D, X B/D)
2. Check CTRL B/D
3. Replace CTRL B/D
Horizontal Line or Bar
1. Check connection
(Y-Sus B/D ↔Panel)
2. Check Y-Sus B/D
3. Replace Y-Sus B/D
First of all, Check whether all of cable between board was inserted properly or not.
Next, Check whether there is foreign material on connector.
A19
2010. 11. 16
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