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Service Manual
Model No.:
3-2-1 Function Description:
Main Board
Process signal which incept from exterior equipment then translate into signal that panel
can display.
Main board connector
Power connectors (J 16)
Notes:
J 16-Pin 3: Backlight on/off:
The system can turn on or turn off the backlight of TFT LCD Panel through the power
supply unit path.
J 16-Pin 6: System power on / standby
System board will use this pin to control system power.
J 16-Pin 2: Control the luminance of backlight
The system can generate the PWN signal to control the strength of TFT LCD Panel's
backlight through this connector
J16
Pin number
Signal name
1
GND
2
BL-ADJUST
3
BL-ON/OFF
4
+5V
5
POWER ON/OFF
6
+5VSTB
7
+5V
8
+5V
9
GND
10
GND
11
GND
12
+12V
13
+12V
- 09 -
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