LG 55UJ634 Series Service Manual page 73

Standard Repair Process Detail Technical Manual
symptom
Content
Error
B. Power error _No power
Check power input voltage and ST-BY 3.5V
Established
date
Revised
date
Backlight
Forward Symbol
Min
Voltage
65UJ63 -
60UJ63 -
55UJ63 126.1 132.6 143.2
49UJ63 -
43UJ63 -
Check the DC 13.2V line for ST-BY Voltage
1 DRV_ON
3 GND
5 A13V
7 13V
9 GND
11 PWR_ON
A18
Values
Unit
Typ Max
192 216
175 195
113.4 122.4
65.94 71.4
2 P-DIM
4 GND
6 A13V
8 13V
10 13V
12 P-DIM2
A18