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(Topic ID: 212663)

Data East switch matrix issues

By metalkatt

6 years ago


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  • 14 posts
  • 4 Pinsiders participating
  • Latest reply 5 years ago by metalkatt
  • Topic is favorited by 2 Pinsiders

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#4 6 years ago
 
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terryb

Inactive member

US Banning, CA

11y 90,150 4,795 14

The issue is most likely with trough 3. It could be a reversed diode, diode shorted to ground or diode lead shorted to switch lead.

As DumbAss said you can also confirm the board is good with the post he linked. If it's the board you would have more problems, but sometimes the issues can be less than obvious.

1 month later
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#10 5 years ago
 
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terryb

Inactive member

US Banning, CA

11y 90,150 4,795 14

White wire should be towards the non-banded side of the diode (technically the diodes should be reversed). Also you really need to clean up some of that soldering and the extra wire/leads sticking out from the solder joint. That's an accident waiting to happen.

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