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Standard Repair Process Detail Technical Manual
Checking method when power is ON
B. Power error _No power
A19-1
Established
date
Revised
date
Error
symptom
Content
LCD TV
A19
Check “power on” pin is high
2011. 12 .14
ALEF LED
24 Pin (Power Board ↔ Main Board) - Common
SMAW200-H24S (YEONHO)
1
Power on
2
20V (24V)
3
20V (24V)
4
20V (24V)
5
GND
6
GND
7
GND
8
GND
9
3.5V
10
3.5V
11
3.5V
12
3.5V
13 GND 14
GND
15 GND 16
N.C
(Only LPB : V-sync)
17 12V 18
Inverter On/off
19 12V 20
N.C
(LPB, Lamp : A-dim)
21 12V 22
PWM Dim #1
23 N.C
(only Lamp SCANNING Model
: PWM Dim #2)
24 Error-out
Edge LED
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