Standard Repair Process Detail Technical Manual
Check power input voltage and ST-BY 5V
B. Power error _No power
A18
Established
date
Revised
date
Error
symptom
Content
LCD TV
For ’10 models, there is no voltage out for st-by purpose. When st-by, only 3.5V is normally on.

Check the DC 20V/24V, 12V, 3.5V.

Edge LED
2010. 12 .14
Edge LED
24 Pin

(Power Board Main Board)
SMAW200-H24S (YEONHO)
1Power on 224V
324V 424V
5GND 6GND
7GND 8GND
93.5V 10 3.5V
11 3.5V 12 3.5V
13 GND 14 GND
15 GND 16 GND
17 12V 18 Inverter On/off
19 12V 20 Lamp : A-Dim
LED : N.C
21 12V 22 PWM Dim #1
23 GND/P_DIM2
Lamp SCANNING Model
: PWM Dim #2
24 Error-out
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