| Solar Mike Guru
 
  Joined: 08/02/2015
 Location: New ZealandPosts: 1173
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        | Posted: 05:03am 05 Feb 2023 |  |  |  |  DC Power and AC Sense PCB's; both are on a 100 x 100 PCB, manually cut using a sharp knife to score both sides through the center of the small notches, then snap in half.
 They stack above each other and the main CPU board.
 
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 4-Layer CPU 100x100 Top:
 
  
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 Power modules next...
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