User manual
ARK-3389 User Manual 10
2.2.4 LCD Backlight On/Off control Connector
The ARK-3389 comes with a D-Sub 9-pin connector which provides a 
BKLTEN signal as well as +12V, +5V and Ground Pin signals that allow 
applicants to connect these signals to LCD Inverter to implement the 
LCD On/Off control. 
• Provides BKLTEN signals that inverter Module requires for controlling 
the on/off
• Provides 12V, 5V as the Inverter Power Source
The additional VBR signal pin could be connected to LCD’s Inverter 
which allows users to implement brightness adjustment through cus-
tomer’s software utility.
9 LVDS_YAP3 22 LVDS_YBM0
10 LVDS_YBP0 23 LVDS_YBM1
11 LVDS_YBP1 24 LVDS_YBM2
12 LVDS_YBP2 25 LVDS_YBM3
13 LVDS_YBP3 26 GND
Table 2.2: LCD Backlight On/Off control Connector
Pin Pin name
1 +12V
2GND
3 BKLTEN
4 VBR
5+5V
6 LVDS_DCLK
7 LVDS_DDAT
8 Reserved
9 Reserved
15
9
6
324
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