My Picstart+ switch mode PSU wouldn't work properly (high current flow
to pc through 0 volt line) until I swapped phase and nutral of the PSU
AC volts input socket !
This tells me that the PSU is not properly isolated. My PSU has been
going strong since the swap for around 2 years now, 24 hours a day, 7
days a week. Checking it now I reckon it should run cooler, but it's
always been that way.
If you have to do my mod, then get a meter and check potential between
the
PICSTART+ RS232 ground and that of your PC.
regards,
Graham Daniel.
Caisson wrote:
{Quote hidden}>
> Hello all,
>
> I've got a Picstart+ programmer, and just now the power supply died
> (Microchip power adaptor, Model PTF09075I , Switched-mode type). That's
> the second one in less than a year. Does anyone else have this kind of
> problems with it ?
>
> Does anyone know what part died ? Maybe I can replace it myself ...
>
> I can ask another one from the local sales rep, but that means that I have
> to
> pay sending of the package (they first want to see the dead supply, before
> they send a repalcement) , resulting in a higher price than when I replace
> it
> with a standard adaptor in the first place :-(
>
> Greetz,
> Rudy Wieser
