LG 55EM970V-ZA (CHASSIS:ED23E) Service Manual ▷ View online
Appendix : Exchange the Module (2)
A - 2/2
Un-repairable Cases
In this case please exchange the module.
Angle view Color difference
Brightness dot noise
Half dead
Green Noise on power on/off time
Line Defect
Mura
Brightness difference
Standard Repair Process Detail Technical Manual
Check front display OLED
B. Power error _No power
A17
Established
date
Revised
date
Error
symptom
Content
OLED TV
A17
ST-BY condition: Light On or Turn Off
Power ON condition: Turn Off
LG Logo control :
Menu Option LG Logo Light
Off/Low/Middle/High
<55EM970V>
2013. 01 .26
Standard Repair Process Detail Technical Manual
Check power input voltage and ST-BY 3.5V
B. Power error _No power
A18
Established
date
Revised
date
Error
symptom
Content
OLED TV
A18
Check the DC 12V, 3.5V.
Power ↔ Main
1
12V
2
12V
3
12V
4
GND
5
GND
6
GND
7
GND
8
GND
9
GND
10
3.5V
11
3.5V
12
3.5V
13
NC
14
NC
<55EM970V>
2013. 01 .26
Standard Repair Process Detail Technical Manual
Checking method when power is ON
B. Power error _No power
A19
Established
date
Revised
date
Error
symptom
Content
OLED TV
A19
Check “RL_ON” pin is high
Power ↔ Module
1
RL_ON
2
EL_VDD_ON
3
GND
4
GND
5
GND
6
20V
7
20V
8
20V
9
GND
10
12V
11
GND
12
3.5V
13
GND
<55EM970V>
Check the DC 20V, 12V, 3.5V.
2013. 01 .26
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