LG 49VM5C Service Manual page 45

Standard Repair Process Detail Technical Manual
symptom
Signage Monitor
Content
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Only for training and service purposes
Error
B. Power error _No power
Check power input voltage and ST-BY 3.5V
Established
Revised
date
Check the Main Power Voltage (2,3,4 9,
10,11,12,17,18, 19, 21Pin)
24 Pin (Power Board ↔ Main Board)
Type : SMAW200-H24S5K (BLACK)
Maker : YEONHO
Pin No. Signal
1 PWR
3 24V
5 GND
7 GND
9 3.5V
11 3.5V
13 GND
15 GND
17 12V
19 12V
21 12V
23 A-DIM
A6
date
Pin No. Signal
2 24V
4 24V
6 GND
8 GND
10 3.5V
12 3.5V
14 GND
16 N.C
18 INV-ON
20 N.C
22 P-DIM
24 ERR
LGE Internal Use Only