DOWNLOAD LG 42PQ301R-ZB (CHASSIS:PP91B) Service Manual ↓ Size: 11.25 MB | Pages: 70 in PDF or view online for FREE

Model
42PQ301R-ZB (CHASSIS:PP91B)
Pages
70
Size
11.25 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
42pq301r-zb-chassis-pp91b.pdf
Date
PREV: LG 42PQ300R-ZA (CHASSIS:PP91B) Service Manual

LG 42PQ301R-ZB (CHASSIS:PP91B) Service Manual ▷ View online

Making 
Revision 
2009. 2 . 1
PDP TV
Symptom
A. Picture Problem
Defect type cause by PDP Module
Repair Process-Reference data
A19
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
(Y-Sus B/D ↔Panel)
2. Check Y-Sus B/D
3. Replace Y-Sus B/D
Horizontal Line or Bar
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
Regular vertical lines
To action
defects description
Symptom picture
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
Making 
Revision 
2009. 2 . 1
PDP TV
Symptom
A. Picture Problem
Connector Type on PDP Module
Repair Process-Reference data
A20
96 Out Put
COF Type
1. Check foreign & Connection status
2. Check bad soldering 
on Chip resistance
▣ Defect symptom 
192 Out Put
TCP Type
TCP (Tape Carrier Package) is film
for IC connect with Electrode pattern
(Direct Bonding) on X B/D
FPC Type
Connector to connect between
Electrode PAD Of PANEL and
Y Drive B/D,Z-Sus B/D
A20
Making 
Revision 
2009. 2 . 1
PDP TV
Symptom
A. Picture Problem
RF Signal level Checking method
Repair Process-Reference data
◆ MENU 
Æ SETUP Æ Diagnostics
1. Check whether Signal Strength, Signal Quality is over 50% or not.
2. If Signal Strength, Signal Quality is under 50%,install the Booster to increase signal level.
A21
A21
Making 
Revision 
2009. 2 . 1
PDP TV
Symptom
Repair Process-Reference data
Check voltage on Power board 
A22
B. Power Problem
Checking Order
Checking Order
Pin Map
Power B/D↔Main B/D
(P813)          (P1100)
7
6
5
4
3
2
1
No.
Mechanical switch on
Low 
(GND Value)
KEY-ON
High(3.3V~5V)
RL_ON
High(3.3V~5V)
AC DET
5V
STBY 5V
Check the other pin’s output
High(3.3V~5V)
Vs-ON
High(3.3V~5V)
M5V_ON
Remark
Spec
Checking 
Point
A22
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