Lvds Backlight Control Selection (Jp2); Lvds Backlight Enable Selection (Jp3); Table 36: Pin Assignment Jp2; Table 37: Pin Assignment Jp3 - Kontron 3.5"-SBC-WLU User Manual

7.18.2. LVDS Backlight Control Selection (JP2)

The 2.0 mm pitch "LVDS Backlight Control Selection" jumper (JP2) can be used to select by which mode the brightness
level in the LCD panel is controlled.

Figure 31: LVDS Backlight Control Selection JP2

Table 36: Pin Assignment JP2

Jumper 1 Position
Pin 1-2 Pin 2-3
X -
- X
"X" = Jumper set (short) and "-" = jumper not set (open)

7.18.3. LVDS Backlight Enable Selection (JP3)

The 2.0 mm patch "LVDS Backlight Enable Selection" jumper (JP3) can be used to select voltage level of backlight
enable signal.

Figure 32: LVDS Backlight Enable Selection JP3

Table 37: Pin Assignment JP3

Jumper 1 Position
Pin 1-3 Pin 3-5
X -
- X
Jumper 2 Position
Pin 2-4 Pin 4-6
X -
- X
"X" = Jumper set (short) and "-" = jumper not set (open)
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Description
PWM Control Mode
Voltage Control Mode
1
5
Description
Backlight Enable Level = +3.3 V
Backlight Enable Level = +5 V
Description
Backlight Enable High Active
Backlight Enable Low Active
1
2
3
2
6
3.5"-SBC-WLU - User Guide, Rev. 1.0
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