HP Draftmaster II 7596A: EPROM dumps needed, urgent :-(

Martin, I might be able to help you as I think we have a 7596A. Are these EPROMs from the processor PCA? Are you able to tell me which 'U' numbers they are in the PC board? I haven't looked at the plotter itself, but the service manual we have shows the following part numbers for the processor PCA 07595-18039 07595-18040 07595-18041 07595-18042 So I'm not sure if my manual is old and the plotters at that time had 4 EPROMs and yours is newer and has 2? Or are they on another PCA somewhere? Let me know. If the plotter we have is in the main museum facility I can possibly help you, I will check. David Collins Curator HP Computer Museum. -----Original Message----- From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Martin Peters Sent: Sunday, 22 May 2016 7:21 AM To: cctalk at classiccmp.org Subject: HP Draftmaster II 7596A: EPROM dumps needed, urgent :-( Hello, the EPROMs are labeled 07595-18045 and 07595-18046. Can anyone do a dump for me? It's really urgent. Our local hackerspace wants to get rid of it, if there is no chance to get the Firmware again. greetings, Martin