>I use the cheap  serial programmer device with one diode 1 capasitor and
>three resistors+7805 .I have conect a power supply between the capasitor and
>the diode. !!It do not work unless ....WHY ??.

Maybe the diode is the wrong way arround!

>Three of them are gone ,one left.
>I sure of  that  two are working (not able  to erase them.) One can I read ,
>and I can verify , but I can not programming them. I am not sure of that it
>is the firstly  code I have progammed.

>>Did the chips program before with the same programmer?
>>
>YES
>And i have testing the programmer with the chip I have left.

Arne, are you saying it worked?

>
>>What sort of programmer are you using?
>
>pgr84 pip-2


Does anyone have a circuit diagram for this in protel schmatic format?
Failing that what about a gif or jpg file. Can anyone tell me how the 13V is
regulated?

Arne, it is very hard to help or even guess what is wrong. I hope you can
recover some of the chips. To me it sounds that there is something  not
quite right with the programmer. Have you tried to messure Vpp on pin 4? it
should be between 12.5V and 13.5V during programming. Pin 5 is ground.

If it has gone much higher that will destroy a PIC chip quickly. This is the
weakest point on the PICs. If you put it the wrong way around still you
should have a good chance of the PIC surviving.

Also check the Vdd is at 4.75V-5.25V during programming.

You really need  a friend near by with a working programmer to check your
PICs. Why don't you ask on the PICLIST if someone is near by to you.

I would not keep trying to test the PICs until you have measured the
programmer voltage and made sure its ok.

Good luck and please tell us if you find the problem.

Regards


Jim