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Erik Baigar

wrote:
I do have a couple of firmware floppies, v1.30 and 1.50 (16 March 94).
More recent firmware exists (with improvements to the FFT code and
perhaps more), but I have been unable to obtain it so far.
My HP54542a currently runs a 2.30 from July 95. But
unforuntately I do not have the firmware disks. I'd
be highly interested in getting one, too...

I would really like to get this working again. I looked at the
Yes, this is a very nice oscilloscope and I'd be
interested whether replacing the battery helps
in your case, too. Of course shorting the power
supply for a few seconds is a good idea to erase
all contents of the RAM!

It would be nice to get a copy of the schematics.
Yes, this would be great. There are some parts
inside which are not replaceable (apart from the
samping circuits) like the FPGA. I have got
empty ones but I do not have got a programmer
to copy the EPM5128 of the HP54542a...

John, please keep us up to date,

regards

Erik.