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Help! Channels 5-8 not working all others work.


steveV967
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This is my second kit I've put together. Didn't have any issues with the first one. Now the second one I've put together Channels 1-4 & 9-16 work fine, but Channel 5-8 won't power anything up.

 

- I've checked and resoldered ICs U11-U20 and resisters R15 & R16

- Reset the board.

- Unplugged cables 5-8 and tried one of them in a channel that worked and they worked fine.

 

Anyone have an idea on what would cause only 4 channels not to work?

 

Thanks,

 

Steve

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