Stanley might be a very good idea. The 54100s were dated 1984 and by golly thats kind of the life expectancy of a eprom. Granted if I erased and reprogrammed them they would be good for quite a while. Unfortunately though I have been capturing the eproms of new gear I have picked up and putting them on Diddiers site, I kind of did not go into this particular unit. Sloppy I started gathering this info when I purchased a nice modern usb eprom programmer a year ago. Makes it all very easy. I suppose the only real excuse I have is I dislike messing with working older equipment. Cause more trouble that way. Good news is the 54100 does work but there are 3 functions I need to stay clear of. Two I can recover from by powering off. The 3rd was a real tough one. Had to pull the memory board and let the charge drain off so it was very very reset. Won't be trying that function again. But the scope basics are indeed still all there. Trigger timbase verticals etc. Just missing several fancy functions that I actually never used. So a 54501 must be a really nice scope I will have to look it up. Only other thing is that the 54100 service manually really does not help you find the bad eprom out of the 12 in the unit. Though I have a hunch. These special functions may live in the last 2 eproms. I may simply pull them and see what happens. Regards Paul.
On Sun, Dec 26, 2010 at 7:00 PM, Stanley Reynolds < [email protected]> wrote: > Don't guess it would help if I open my HP 54501A and backup the eproms ? > > Stanley > > > > ----- Original Message ---- > From: paul swed <[email protected]> > To: Time-nuts <[email protected]> > Sent: Sun, December 26, 2010 4:24:45 PM > Subject: [time-nuts] HP 54100 scope eproms images to Diddiers site Ko4bb > > Though I have a bad eprom and its unclear which one. I have uploaded the > eprom images to Diddiers site. > Much of the 54100 still works just need to stay clear of some functions > that > lock the scope up. > Not perfect but better then nothing. Also have to say the HP service > manuals > not great. "Change the eproms till it works". > There you go. It would be nice if the trouble code gave you a clue as to > which of the 12 eproms it is. > Can still compare timebases with the scope. > Regards > Paul > WB8TSL > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
