> The voltages on C6/7/8's positive terminals are 8, 9.5, and 9V
> respectively while the pump is active.

Measure again without the target circuit removed (no load) to check
whether the load is to blame. Re-check the polarity of your caps, it
looks like you might have revesed for instance C7.

The 16F648A, 16F628A or 16F628 can be used in a Wisp628, but I doubt it
is the chip that is to blame.

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products

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