Avalue Technology EBM-A50M, User Manual, Page: 27 / 79

User
’s Manual
EBM-A50M User
‟s Manual
27
2.4.9 LCD backlight brightness adjustment (JVR)
* Default
Signal PIN PIN Signal
+5V
1 2
DC
VR 3 4 VR
GND 5 6 PWM
Variation Resistor
(Recommended: 4.7KΩ, >1/16W)
Mode1: VR type
Mode 2: DC type*
Note :
DC: 0V ~5V
Mode 3: Pulse-Width Modulated type
Note:
For inverters with adjustable Backlight function, it is possible to control the LCD brightness
through the VR signal controlled by JBKL1. Please see the JBKL1 section for detailed circuitry
information.