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ECM-QB User’s Manual

24 ECM-QB User’s Manual

2.4.7 LCD Inverter Connector (CN3)

Signal

+12V

GND

BLKTEN_OVL

BRIGHT

+5V

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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