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Standard Repair Process Detail Technical Manual
LCD TV
IOP 47"/Edge LED 55"
Edge LED 32/42/47"
Copyright ⓒ 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Error
B. Power error _No power
symptom
Content
Checking method when power is ON
IOP 55"
Established
date
Revised
date
Check "power on" pin is high
Pin layout (24P)
24V
Power
1
2
on
20V (
3
24V
4
5
GND
6
7
GND
8
9
3.5V
10
11
3.5V
12
13
GND
14
15
GND
16
17
12V
18
Inverter ON
LE : NC
19
12V
20
IOP : PWM Dim #1
LE : PWM Dim #1
21
12V
22
IOP : NC
23
NC
24
A19
2010. 2 .19
A19
(IOP & Edge 55")
)
Edge 42/47
24V
GND
GND
3.5V
3.5V
GND
NC
Error-out
LGE Internal Use Only
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