Power On; 3.5V; Gnd; Pin (Power Board ↔ Main Board) - LG 43LF540Y Service Manual

Standard Repair Process Detail Technical Manual
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Power Board voltage measuring method
UHD
FHD/HD
Established
date
Revised
date
Check DC 3.5V, 12V, 24V
18 Pin (Power Board ↔ Main Board)

SMAW200-H18S5

1

Power on

3

3.5V

5 3.5V
7

GND

9 24V
11
GND
13 12V
15 12V
17 GND
12 Pin (Power Board ↔ Main Board)
SMAW200-H18S5
1
Power on
3 GND
5
13.2V
7 13.2V
9 GND
11 DRV_ON
A4
2

DRV ON

4

PDIM#1

6 3.5V
8

PDIM#2

10 24V
12
GND
14 12V
16 NC
18 GND
2
PDIM#2
4 13.2V
6
13.2V
8 13.2V
10 GND
12 PDIM#1
LGE Internal Use Only