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4-2-1 Function Description:
Main Board
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Main board connector
Power connectors (CN1)
CN1
Pin number
Signal name
1
+12V
2
+12V
3
BL
4
DIM
5
GND
6
GND
7
SW
Notes:
CN1-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.
System board will use this pin to control system power.
CN1-Pin 4: 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
CN2
CN3
Pin number Signal name
Pin number
Signal name
1
SB5V
1
GND
2
IR
2
AD1
3
LED_R
3
AD2
4
LED_G
5
GND
Keypad and remote connector (CN2,CN3)
14
Speaker Connector (CN4)
Pin number
Signal name
1
L+
2
L-
3
R-
4
R+
Service Manual
Model No.:HL24XSLW2a
Содержание HL24XSLW2
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