Avalue EBM-CX700 - Manual (Page 9)

Quick Installation Guide
ECM-CX700 Series Quick Installation Guide 9
2.3.5 LCD Inverter Connector (JBKL1)
Signal PIN
+12V 1
GND 2
ENBKL 3
VR 4
+5V 5
Note:
For inverters with adjustable Backlight function, it is possible to control the
LCD brightness through the VR signal controlled by JP5. Please see the
JP5 section for detailed circuitry information.
2.3.5.1 Signal Description – LCD Inverter Connector (JBKL1)
Signal Signal Description
VR Vadj = 0.75V ~ 4.25V (Recommended: 4.7KΩ, >1/16W)
ENBKL LCD backlight ON/OFF control signal