LG 55UB820T Service Manual page 84

Standard Repair Process Detail Technical Manual
symptom
LCD TV
Content
Error
B. Power error _No power
Check power input voltage and ST-BY 3.5V
Check the DC 24V, 12V, 3.5V.
Established
date
Revised
date
P_main
Maker : Yeonho
28Pin SMAW200-H28S5K
28Pin map (LPB)
1 PWR ON 2
3 P_DIM #1 4
5 3.5V 6
7 3.5V 8
9 GND 10
11 12V 12
13 12V 14
15 12V 16
17 GND 18
19 24V 20
21 24V 22
23 GND 24
25 SCLK 26
27 SIN 28
A18
2014.02.05
A18
DVR_ON
PDIM #2
GND
3.5V
GND
12V
12V
GND
24V
24V
24V
GND
GND
VSYNC