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HP8711A/12 Questions - Firmware Updating

Question asked by sreaves on Apr 17, 2015
Latest reply on Jun 18, 2015 by PMAX65
Hello,

I have a HP8711A SN 3212A00581 with Boot A02.00 and Firmware A.01.52 Dated Nov 3, 1992
The unit has 1.5MB DRAM and Option 1E1

I have on disk two versions of the firmware A.02.10 and A.03.52

I would like to know if I will be able to update the firmware to 2.10 or the 3.52 without bricking my unit. 

Also is there a way to back up the current firmware in the instrument before attempting an upgrade? I know that I have to make a backup of the calibration constants beforehand.

Also I would like at some point to update the unit to the functionality of the 8712A if that is possible. That would really be a nice addition to the ham shack.

I noted that the unit has 28F010 for boot and a mix of 28F010 and 28F010 parts.

Also does anyone have a CLIP of the schematics for the "A" version of these analyzers?

Thank you and 73,

Sam
W3OHM  

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