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11. Circuit Diagram and wire sequence
Standard connector wire sequence:
Connecting end with controller Connecting end with buttons
Standard connector wire sequence table
Standard Wire Color of standard Wire Function
1 Red (VCC) Display power wire
2 Blue(K) Power control wire of controller
3 Black(GND) Instrument Ground wire
4 Green(RX) Data receiving wire of display
5 Yellow(TX) Data transmission wire of display
Note: waterproof connector is used for the lead wire of some products, so the user can't see the color
of the lead wire in the harness.
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