LG 42LB5800-SB - Page 68

B Power error No power
Established
Error
t
2014 1 2
Standard Repair Process Detail Technical Manual
Checking method when power is ON
B
.
Power
error
_
No
power
A19
date
Revised
date
symp
t
om
Content
LCD TV
Check “power on” pin is high
2014
.
1
.
2
Edge LED
18 or 24 Pin (Power Board ↔ Main Board) -
공통
FREE LGP-14PL1-IT
1 PWR ON/OFF 2 INV ON
Edge LED
3 3.5V 4 PDIM #1
5 3.5V 6 GND
7 GND 8 PDIM #2
9
24V
10
24V
9
24V
10
24V
11 GND 12 GND
13 12V 14 12V
15 12V 16 24V or N.C
17
GND
18
GND
17
GND
18
GND
19 GND 20 GND
21 GND 22 L/DIMO_VS
23 L/DIMO_MOSI 24 L/DIMO_SCLK
The Wafer,18Pin and 24Pin, is used by operating LocalDimming or not LocalDimming
- 24Pin wafer is applied operating L/D at power and main B/D
- 18Pin wafer is applied not operating L/D at power and main B/D
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