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Standard Repair Process Detail Technical Manual
symptom
LCD TV
Content
Direct LED
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Error
A. Video error_No video/ Audio
Power Board voltage measuring method
g
g
Check the DC 24V 12V 3 5V
Check the DC 24V, 12V, 3.5V.
24 Pin or 18Pin
1
Power on
3
3.5V
5
3.5V
7
7
GND
GND
18pin
9
24V
11
GND
13
12V
15
12V
17
GND
19
GND
21
GND
23
L/DIM0_MOSI
Established
2013. 11 .30
date
Revised
date
date
(Power Board ↔ Main Board) -
SMAW200-H24S5
2
4
6
8
8
10
12
14
16
18
20
22
L/DIM0_VS
24
L/DIM0_SCLK
A5
공통
INV_ON
PDIM #1
3.5V
PDIM #2
PDIM #2
24V
GND
12V
24V
GND
GND
LGE Internal Use Only
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