Illustrated Diagram
HE-1920
PP1 - 12VDC power supply – input, Power header 4 ways 0.156” pitch
PIN DESCRIPTION
1 +12VDC
2 +12VDC
3 Ground
4 Ground
PP2 – Alternate 12VDC power supply – input, Terminal Block 2 poles
PIN DESCRIPTION
1 +12VDC
2 +12VDC
3 Ground
4 Ground
PP3 – 12VDC power supply to controller – Output, Power header 2 ways, 0.156” pitch
PIN DESCRIPTION
1 +12VDC
2 Ground
CNA1 - Inverter interface to controller, JST B4B-XH-A
PIN SYMBOL DESCRIPTION
1 NC
2 AUX_GND
3 AUX_GND
4 AUX_Vcc
CNB1 – Inverter interface to controller, JST B5B-XH-A
PIN SYMBOL
1 GND
2 BL_ON
3 BLCTRL
4 BVR_WIP
5 BVR_A
CNB2 – Inverter interface to backlight inverter, JST B4B-XH-A
PIN SYMBOL
1 VLCD12
2 AUX_GND
3 AUX_GND
4 AUX Vcc
46
No connection
Ground
Ground
+5V DC, 500mA max
DESCRIPTION
Ground
Backlight power
Backlight on/off control signal
Backlight brightness VR pin WIP
Backlight brightness VR pin A
DESCRIPTION
Panel power
Ground
Ground
+5V DC, 500mA max
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