Advantech ARK-1550 - LCD Backlight Control Connector (Optional)

ARK-1550 User Manual 16
2.4.12 LCD Backlight On/Off Control Connector (Optional)
ARK-1550 comes with a D-Sub 9-pin connector which provides BKLTEN signal as
well as +12 V, +5 V and Ground Pin signals that allow the user to connect these sig-
nals to the LCD Inverter to implement the LCD On/Off control.
 Provides BKLTEN signal that the inverter Module requires for inverter on/off
control
 Provides 12 V, 5 V as the Inverter Power Source. The additional VBR signal pin
could be connected to LCD’s Inverter that allows the user to achieve brightness
adjustment through the customer’s software utility.
Figure 2.14 LCD Backlight connector
Table 2.13: LCD Backlight Connector Pin Assignment
Pin Signal name
1+12 V
2GND
3 BKLTEN
4 VBR
5+5 V
6 LVDS_DCLK
7 LVDS_DDAT
8GND
9 Reserved