LG 55LM8600 Service Manual page 105

Standard Repair Process Detail Technical Manual
symptom
LCD TV
Edge LED
Edge LED
Copyright © 2012 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Error
B. Power error _No power
Content
Checking method when power is ON
Established
Revised
Check "power on" pin is high
24 Pin (Power Board ↔ Main Board) -
SMAW200-H24S (YEONHO)
Power on
1
24V
3
GND
5
GND
7
3.5V
9
3.5V
11
13 GND
15 GND
17 12V
19 12V
21 12V
23 GND/P_DIM2
• Lamp SCANNING Model
: PWM Dim #2
2010. 12 .14
date
date
공통
24V
2
24V
4
GND
6
GND
8
3.5V
10
3.5V
12
GND
14
GND
16
Inverter On/off
18
Lamp : A-Dim
20
LED : N.C
22 PWM Dim #1
24 Error-out
A19
LGE Internal Use Only