Avalue ECM-QB - Manual (Page 13)

ECM-QB Quick Installation Guide
ECM-QB Quick Installation Guide 13
2.3.7 LCD Inverter Connector (CN3)
Signal PIN
+12V 1
GND 2
BLKTEN_OVL 3
BRIGHT 4
+5V 5
Note:
For inverters with adjustable Backlight function, it is possible to control the LCD brightness
through the VR signal controlled by JVR.
2.3.7.1 Signal Description – LCD Inverter Connector (CN3)
Signal Signal Description
BRIGHT Vadj = 0.75V ~ 4.25V ( Recommended: 4.7KΩ, >1/16W)
BLKTEN_OVL LCD backlight ON/OFF control signal