Avalue ECM-QM57 - Manual (Page 16)

ECM-QM57 Quick Installation Guide
16 ECM-QM57 Quick Installation Guide
2.3.13 LCD Inverter Connector (JBKL2)
Signal PIN
+12V 1
GND 2
BLEN 3
L_BKLT_CTRL_R 4
+5V 5
Note:
For inverters with adjustable Backlight function, it is possible to control the LCD brightness through
the VR signal controlled by JVR1. Please see the JVR1 section for detailed circuitry information.
2.3.13.1 Signal Description
– LCD Inverter Connector (JBKL2)
Signal Signal Description
L_BKLT_CTRL_R Vadj = 0.75V ~ 4.25V (Recommended: 4.7K Ω, >1/16W)
BLEN LCD backlight ON/OFF control signal