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Damon - KJ7E <damon.stewart@...> added the photo album Damon_KJ7E photos ( /g/HP8924-Family-Spectrum-Analyzers/album?id=291779 )

Thanks, John. The battery is OK of 2.9V measured by my DMM. Will try firmware update first. Regards, James

Hi John, Thank you! John: First, try firmware update. John: Second, try to troubleshoot Processor board and SA board. Roger that, I'll do above and let you know. I have downloaded EEPROM 28C256

The HPIB card is the easy bit.? ?:-) It would be interesting to "sniff" the commands the software uses. Robert

Due to a combination of several posts needing either editing and/or me emailing the poster to establish clarity, there has been more than a day to get them posted. I've been very busy with several

I found my former issues with my unit was good after repairing the PSU (bad Rica safety caps blew the switching circuit) and replacing the Memory Unit. It was causing a Non-Recoverable Firmware Error.

Hi James, Lots of clever things in these instruments. One I found very useful in fault finding is the TEST Button. That opens a screen to select the ROM part of the memory where the test programs

Hi Bill, Thanks for reply. I didn't change that battery and I measured it and it was 2.9 V. It's very weird that everything goes normal except Spec Ana. That error message only pops out when accessing

Used an HP-IB card for the communication so I believe you need that as well. Not sure a generic card would work but who? knows ...haven't tried it

doubt very much the battery will fix anything but keeping the stored settings and setups in NVRAM everything critical is in EEPROM and ROM on the 892XA ...went to flash instead of ROM on the 8920B and

Does anyone have a copy of the 83224A IBASIC Developers Tool Kit software? It runs on a PC. It appears to include a utility to transfer files from a PC to the test set memory. As the test set memory

Hi James, I suppose you have changed the 3V Memory back up battery ??? on the board that the Card reader is attached to. It may be nearing failure. I believe they last about 3 years. They do not

usually " Non recoverable Firmware Error" is a HW issue. You can try and update the firmware on the 8920A's to a later version ...depends on the memory card you have installed but 18.X or 14.X IIRC.

if you still cannot locate one, try contacting Paul Zeppa at RF Imaging & Communications. https://rfimagingandcommunications.com/product-category/hewlett-packard/ Terry Gillard - NX7R TTG

Hi William, I met the exactly same problem! This HP8920A pops out that error message every time when I'm trying to get into Spec Ana screen: " Non recoverable Firmware Error" the two lines below read

one on ebay right now

Don't get confused on that.? The 8920a and the Epson cards can have a different file system.? The Epson cards can come as "Read Only" for programs and updates you buy from HP or as Read/Write cards

Bill, Thanks for the info. I am new to the 8920a. I did find the NA_FM files in the files section on this forum. I'm not sure how to transfer them to an Epson memory card. And, as you suggest, the

Hi Andy,! I found one on Ebay. It has the HP Part Number 85700A and is 32Kilobyte capacity. Looks New!. It does work and I was able to write and read to it. So far, I have not been able to back up any

Thanks for the reply Tony, The HP8920B uses a PCMCIA card which is more common than the Epson memory card. Where did you find the flash code?