LG 84LA980T-DC (CHASSIS:LT34E) Service Manual ▷ View online
Appendix : Exchange the Module (2)
Vertical Block
Vertical Line
S
TAB IC D f t
Vertical Block
S
TAB IC D f t
Source TAB IC Defect
Source TAB IC Defect
Source TAB IC Defect
Horizontal Block
Gate TAB IC Defect
Gate TAB IC Defect
Gate TAB IC Defect
Horizontal Block
Gate TAB IC Defect
Horizontal line
Gate TAB IC Defect
Un-repairable Cases
In this case please exchange the module.
In this case please exchange the module.
Gate TAB IC Defect
Horizontal Block
p
g
Gate TAB IC Defect
Gate TAB IC Defect
A - 5/5
Standard Repair Process Detail Technical Manual
Ch k f
t P
I di t
B. Power error _No power
A17
Established
date
Revised
Error
symptom
Content
LCD TV
2013.01.31
Check front Power Indicator
A17
date
Content
<XXLA9700-NA>
ST-BY condition: On or Off
Power ON condition: Turn Off
Power ON condition: Turn Off
A17
Established
date
Standard Repair Process Detail Technical Manual
Revised
A18
Error
symptom
Content
Check power input voltage and ST BY 3 5V
B. Power error _No power
LCD TV
2013.01.31
date
A18
Content
Check power input voltage and ST-BY 3.5V
Check the DC 24V 12V 3 5V
Check the DC 24V, 12V, 3.5V.
18 Pin
(Power Board ↔ Main Board)
1
Power on
2
INV ON
3
3.5V
4
PDIM#1
5
3.5V
6
PDIM#2
7
GND
8
GND
9
24V
10
24V
11
GND
12
GND
13
12V
14
12V
15
12V
16
24V
17
GND
18
GND
A18
Standard Repair Process Detail Technical Manual
POWER OFF MODE h ki
th d
B. Power error
_Off when on, off whiling viewing
A19
Established
date
Revised
Error
symptom
Content
LCD TV
2013.01.31
POWER OFF MODE checking method
<ALL MODELS>
A19
date
Content
Entry method
1. Press the IN-START button of the remote
controller for adjustment
controller for adjustment
2. Check the entry into adjustment item 3
A19
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