User Manual

ECM-QM57
ECM-QM57 User’s Manual
30
2.4.13 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.
2.4.13.1 Signal Description – LCD Inverter Connector (JBKL2)
Signal
Signal Description
L_BKLT_CTRL_R
Vadj = 0.75V ~ 4.25V (Recommended: 4.7KΩ, >1/16W)
BLEN
LCD backlight ON/OFF control signal