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Standard Repair Process Detail Technical Manual
Error
symptom
LCD TV
Content
Copyright
2015 LG Electronics Inc. All rights reserved.
Only for training and service purposes
B. Power error _No power
Checking method when power is ON
Established
date
Revised
date
Check "power on(Pin 1)" pin is high(about 3.3V)
18 Pin (Power Board ↔ Main Board)
SMAW200-H18S5
1
Power on
2
3
3.5V
4
5
3.5V
6
7
GND
8
9
24V
10
11
GND
12
13
12V
14
15
12V
16
17
GND
18
A13
DRV ON
PDIM#1
3.5V
PDIM#2
24V
GND
12V
NC
GND
LGE Internal Use Only
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