Tobias,

under picstart+  there is a number starts with JIT97xxxxxx-R7
see if your revision is less then "R7" if not that means hardware need
to be modify.
locate R4 and solder 562 K 1% resister across R4 or replace it with
22,6k 1% resister. after that turn it on and measure the voltage across
C5 you should have exactly 13.00 volts.
 if your firmware is not updated version replace that too HEX file located
in your MPLAB.
I always use JW part and I keep the old one inside of  Picstart+.

Andre  Abelian



> Hello list,
>
> I have trouble programming the pic12c508A 04/PHBG chip. I am using same
hex
> file as I have used many times before (using PIC12C508A 04/PHBN). The hex
> file uses internal osc.
>
> I am programming using PIC start pluss and MPLAB 3.99
> I cant imagine what is wrong,
> Anyone have any clue...???
>
> best regards,
> tobias
>