• Please review our updated Terms and Rules here
  • Exhibitor application for VCF West 2022 is now open! If you are interested in exhibiting, please fill out the form here.
  • Here are the results of the VCF East 2022 Post Event Survey: Survey Results

M900, 4004

Marty

Veteran Member
Joined
Jul 26, 2009
Messages
3,119
Location
Boulder , Colorado USA
Hi All;
I today got out my old Pro-Log M900 Eprom Programmer, which has a 4004 CPU.. Right now there isn't any thing on the Led/disply, except for when it is first turned on.. I see an "F" in each Display, before it goes to nothing.. Looking at the 4004 with my scope, it looks like I have activity on most all of the lines.. So I think it may be functionally ok, I just found information on the 4008 and 4009, and will look at then and on the 1702 Eproms, after this posting.. What I am wondering is What would I be looking for, to asert the this may be running, and not a Dead chip set..
THANK YOU Marty
 
Top