Where is JP2 on CFA-631?


New member

I have a CFA-631 w/ the SCAB module. I'd like to power the display using the 3.5" floppy connector, which means I need to open JP2 on the 631.

However, I can't seem to locate JP2 on the 631 board at all.

I checked the v1.0 data sheet, but could find no mention of it. In the v2.0 data sheet, it shows where JP2 is, but on my board, there's nothing there. :confused:

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CF Tech

I assume you have a V1? If that is the case, there is no way to open JP2 because it does not exist.

It should not cause any trouble, JP2 is really only a precaution, I have never seen any trouble having it closed, we just did not like the idea of the possibility of current flowing from the floppy connector back through the USB.


New member
Yes, I have a V1. I plugged in a floppy connector to the SCAB, and it seems to be a-ok. :)

Thank you for your prompt reply!