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Question 8 The upper and lower positions of the text coming out of the display are misplaced

Reason: not connecting lines in order.

Solution: connect the first port of the control card from the top of the display, such as the P10 monochrome board, connect 12x1, 12x2...;P4.75 board, connect 08x1, 08x2...

The phenomenon is as follows:

image.png

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Huidu Asynchronous LED Controller