The picture above shows the v1.0 aluminum substrate without copper laying. . . Summarize experience and add conditions to make v1.1 double-layer board
Version V1.1 replaces the protection board components with self-use protection modules. If necessary, you can use the schematic diagram to generate a new PCB and then replace it. Directly replace the existing pcb and many things will disappear.
I didn't find it before. The touch pins of 8022ws do not have connection pads, but it does not affect the use. It has been added in 08-07.
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