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Standard Repair Process Detail Technical Manual
symptom
LCD TV
Content
For '10 models, there is no voltage out for st-by purpose.
When st-by, only 3.5V is normally on.
Edge LED
Edge LED
Copyright © 2012 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Error
B. Power error _No power
Check power input voltage and ST-BY 5V
Established
Revised
Check the DC 20V/24V, 12V, 3.5V.
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
Common
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
A18
LGE Internal Use Only
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