LG 55LV5500-DD (CHASSIS:LT12E) Service Manual ▷ View online
ⓒ LG Electronics. Inc.2009
Appendix : Exchange the Module (1)
Panel Mura, Light leakage
Press damage
Crosstalk
Crosstalk
Press damage
Panel Mura, Light leakage
Press damage
A - 4/5
Un-repairable Cases
In this case please exchange the module.
ⓒ LG Electronics. Inc.2009
Vertical Block
Source TAB IC Defect
Horizontal Block
Gate TAB IC Defect
Gate TAB IC Defect
Gate TAB IC Defect
Vertical Line
Source TAB IC Defect
Vertical Block
Source TAB IC Defect
Horizontal Block
Gate TAB IC Defect
Horizontal line
Gate TAB IC Defect
Gate TAB IC Defect
Horizontal Block
Gate TAB IC Defect
Appendix : Exchange the Module (2)
A - 5/5
Un-repairable Cases
In this case please exchange the module.
ⓒ LG Electronics. Inc.2009
Standard Repair Process Detail Technical Manual
Check front display LED
B. Power error _No power
A17
Established
date
Revised
date
Error
symptom
Content
LCD TV
A17
ST-BY condition: Red
Power ON condition: white
Power ON condition: white
Front LED control :
Menu
Menu
Æ Option Æ Power Indicator
Æ Standby light ON
2010. 12 .14
ⓒ LG Electronics. Inc.2009
Standard Repair Process Detail Technical Manual
Check power input voltage and ST-BY 5V
B. Power error _No power
A18
Established
date
Revised
date
Error
symptom
Content
LCD TV
A18
For ’10 models, there is no voltage out for st-by purpose.
When st-by, only 3.5V is normally on.
When st-by, only 3.5V is normally on.
Check the DC 20V/24V, 12V, 3.5V.
SMAW200-H24S (YEONHO)
Error-out
24
N.C
• Lamp SCANNING Model
: PWM Dim #2
23
PWM Dim #1
22
12V
21
Lamp : A-Dim
LED : N.C
20
12V
19
Inverter On/off
18
12V
17
GND
16
GND
15
GND
14
GND
13
3.5V
12
3.5V
11
3.5V
10
3.5V
9
GND
8
GND
7
GND
6
GND
5
20V (24V)
4
20V (24V)
3
20V (24V)
2
Power on
1
24 Pin
(Power Board ↔ Main Board) -
공통
ALEF LED
Edge LED
2010. 12 .14
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