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Checking method: 
1. Check the signal strength or check whether the screen is normal when the external device is connected. 
2. After measuring each voltage from power supply, finally replace the MAIN BOARD. 

<ALL MODELS>

You can view 6 types of patterns using the ADJ Key
Checking item : 1. Defective pixel    2. Residual image    3. MODULE error (ADD-BAR,SCAN BAR..)

4.Video error (Classification of MODULE or Main-B/D!)

ST-BY condition: Red
Power ON condition: white

Front LED control :
Menu 

Æ Option Æ Power Indicator

Æ Standby light ON

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.

24 Pin

 

(Power Board ↔ Main Board) –

 

공통

SMAW200-H24S (YEONHO)

1

Power on

2

24V

3

24V

4

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

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