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)
Service Manual
Model No.: HL24XP1
14
Speaker Connector (CN4)
Pin number
Signal name
1
L+
2
L-
3
R-
4
R+
Summary of Contents for HL24XP1
Page 10: ...Service Manual Model No HL24XP1 9 2 2 External pictures four faces Front Side Left Side ...
Page 11: ...Service Manual Model No HL24XP1 10 Right Side Back Side ...
Page 18: ...Service Manual Model No HL24XP1 17 Panle LVDS Connector CNC3 ...
Page 51: ...9 2 Power Supply Board Failure Check Service Manual Model No HL24XP1 50 ...