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15) BL_SW (Back Light Switch)
The Back Light switch provides the function for screen back light adjustment.
1
16) FPD (Flat Panel Display Header)
The FPD is a high-speed interface connecting the output of a video controller in a laptop computer, computer
monitor or LCD television set to the display panel. Most laptops, LCD computer monitors and LCD TVs use
this interface internally. The header conforms to FPD specification.
8
1
17) GPIO_PWRSEL (GPIO Power Selection Jumper)
Move the jumper cap from the LPT_SEL jumper to this jumper to configure the LPT_GPIO header to support
GPIO device and also to specify the GPIO voltage.
1
1
Pin No. Definition
1
BL_DOWN
2
BL_UP
Pin No. Definition
1
BKLT_EN
2
BKLT_PWM
3
BKLT_PWR (FPD_PWR)
4
BKLT_PWR (FPD_PWR)
5
BKLT_GND/Brightness_GND
6
BKLT_GND/Brightness_GND
7
Brightness_Up
8
Brightness_Down
1-2 Close: Set GPIO voltage to +12V.
2-3 Close: Set GPIO voltage to 5V.
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