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

ⓒ LG Electronics. Inc.2009
Making 
Revision 
2009. 2 . 1
PDP TV
Symptom
A. Picture Problem
Check 5V, 12V on Power B/D
Repair Process-Reference data
A12
▣ Measure 5V voltage
Power Board
Pin Map
Power B/D↔Main B/D
(P813)          (P1100)
P813
P1100
P813
▣ Measure 12V voltage
A12
ⓒ LG Electronics. Inc.2009
Making 
Revision 
2009. 2 . 1
PDP TV
Symptom
A. Picture Problem
Control Board Checking Method(42G2/50G2)
Repair Process-Reference data
A13
① Check input voltage(5V of P101) on Control B/D
② Check LED On
③ If LED light doesn’t appear, check Crystal X101 output
④ Check 3.3V, 5V,1.8V FET
⑤ Check MCM at VS_DA by using Multi meter
▣ Checking Method
③ Check Crystal(X101)
3.3 V
5 V
1.8 V
② Check LED On
① Check Input voltage
GND
④ Check Crystal(X101)
Check oscillation of Crystal
(Normal: 100 MHZ, 1.6v)
MCM Check point
(+)VS_DA / (-)  GND 
(Normal: 3.3V )
⑤ Check MCM
A13
Making 
Revision 
2009. 2 . 1
PDP TV
Symptom
A. Picture Problem
Mal discharge Symptom
Repair Process-Reference data
▣ Dark picture caused by Mal-discharge
A14
▣ Dot type Mal-discharge symptom
▣ Scan type Mal-discharge symptom
A14
Making 
Revision 
2009. 2 . 1
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 Remocon
Press “In-start” →Press” 0000”
→ Select Panel option → Pop up Module Rom ver.
※Refer to the Module Rom upgrade manual 
for Rom upgrade.
USB Type Jig
A15
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