EPROM programmer

Hi I've been using a PB-10 until just last week when it stopped programming 2716s :( I have a data I/O 19 with unipack but that requires me to dig up serial commands and such. I mostly used it for copies. I think my PB-10 problem is related to either the charge pump or regulation of the VPP. I only just figured out how they run the charge pump but the regulation doesn't make sense to me yet. I don't have schematic for the PB-10 so I need to trace wires. I suspect that I may have distroyed a couple of my 2716s. Someplace I have a simple parallel port programmer but I'd have to dig through boxes to find it again. I don't have the original software, any more, but it is simple enough that I could recreate it. Dwight _________________________________________________________________ Need to know the score, the latest news, or you need your Hotmail?-get your "fix". http://www.msnmobilefix.com/Default.aspx