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ECM-QB Users Manual
24 ECM-QB Users Manual
2.4.7 LCD Inverter Connector (CN3)
Signal
PIN
+12V
1
GND
2
BLKTEN_OVL
3
BRIGHT
4
+5V
5
Variation Resistor
(Recommended: 4.7KΩ, >1/16W)
Note:
For inverters with adjustable Backlight function, it is possible to control the LCD brightness
through the VR signal controlled by VR1.
2.4.7.1 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
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