eprom programmer

[samib71]

hello all.
Ineed help with eprom programmer GP MOD XP 640 from GP industrial UK ,

http://matthieu.benoit.free.fr/pdf/GP%20XP640%20User%20Manual.pdf

I ve already took a look on the pdf but im not sure,i would like toknow if it is able to handle old
eproms that requires 25v 21v vpp, the ones we find on old computers , atari 2600 cartridges..
also i want to know if its worth to have it for doing old stuff, for the newest stuff i have my gqx4.
sorry about my poor english level , and thanks for any help.

 

[daver2]

Ot looks like it can program 12, 21 and 25V devices. There is a calibration procedure for each of the above voltages.

Dave

 

[samib71]

thanks for replay dave please can you explain more about calibration of the voltages, because i could nt find informations on the pdf.

 

[daver2]

There are six (6) adjustable potentiometers inside the unit (or in the manual I found there were at least).

Page 37 of http://matthieu.benoit.free.fr/pdf/xp640.pdf.

Dave

 

[daver2]

Incidentally, don't adjust anything without good reason!

I just identified that the relevant programming (and other) voltages required appear to be all present and correct...

Dave

 

[samib71]

Thanks again for all your help.

 

[daver2]

No problem.

Dave