Several Main Problems Caused by Laser Marking Machine D/A Card: acousto-optic power not open, garbled characters, dotted lines

in FAQs about Laser Marking,

1. There is no acousto-optic open signal (+5V) at pin 8, resulting in the acousto-optic power cannot be opened;

2. The analog signal output cannot accurately reflect the design content, that is, garbled characters appear;

3. AD7237 is not working properly and the marking lines are dotted lines.

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