On 4/9/06, John Nall <jwnall@gmail.com> wrote:
> (Topic changed to [PIC])
>
> David Corrigan wrote:
> > > I bought the EasyProg kit from embedinc (http://www.embedinc.com/EasyProg/)
> > and had it working for a short time. Right now the Vpp pin is stuck at 10
> > volts. (I checked all the lines with pic_ctrl) Does anyone know specific
> > traces on the programmer that could cause this?

http://www.embedinc.com/EasyProg/prog7.pdf

Unfortunately this is a very good example about how simple things
could be done amazing complicated. For example generating the Vpp from
a 17V line with dozens of transistors, OA and so on, when 13.5V is
already on the board near another chip. Guess which one ?

greetings,
Vasile

> .
> Mine works fine, and has been for quite some time now.  (Which is not
> any help to you, of course, other than to convey the message that you
> most likely did something wrong in assembling  the kit.  :-)  I've found
> it to be very helpful to use a magnifying  glass and a strong light, and
> examine all the solder joints in great detail.  But it is,
> unfortunately, just going to be a matter of tediously going through and
> examining  the construction, more than likely.
> .
> John
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