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ECB-862/862L
ECB-862/862L User’s Manual 39
3.9.32 LCD Contrast Adjustment Connector (VR1)
Signal PIN
+3.3V 1
VCON 2
GND 3
3.9.33 LCD Backlight Brightness Adjustment Connector (VR2)
Signal PIN
+5V 1
VBR 2
GND 3
VCC
CN23
pin 4
VR2
1
2
3
Variation Resistor (Recommended: 4.7KΩ , >1/16W)