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Agilent 54835A scope (4 channel 1GHz / 4Gs/s) repair & uphack
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Xtremexp:
Hello all,

I also joined the club to repair 54845A. Thanks to the forum members, My unit was failing ADC and FISO tests on one channel, I removed the ADC and found one pin supressed, I cleaned and reinstalled ADC module and the error went away.
I have VIN:025, motherboard has two USB port header, enabled USB in BIOS and installed drivers for USB mass storage. Now I can use USB. this is good.
I cloned HDD, if someone needs anything then I can provide it.

My next goal is to replace HDD so that I have backup plan if I mess something and break software.

I want to add USB test option, has anyone tried to add USB test option on these units? How to install it? I feel like this instrument is very basic, I am looking if there are any way to make this machine worth these days.

Thanks!
BoscoLab:
Hello,

I have an HP 54845A with software revision A.02.51 and an Agilent 54832B with software revision A.01.10. I am looking for the latest software revision for both. Preferably a direct image which I can copy to a CF card. Who can provide me with a ready installed image for 54845A and 54832B?
 
I have tried to install the ISO I found here on 54832B. Always with the error 0x0B read fault, the ISO is corrupted.  :( On the 54845A I can't find a way to boot from CD.  :(

It would be a great help if someone can provide me with a suitable image with the latest revisions for both devices.  :)

Thank you!

Tony_G:
I can't help you with a CF card image but I was able to boot and upgrade my 54845A using the images in the OneDrive link I shared earlier by getting a MicroSolutions Backpack Parallel Port CDROM drive:

https://www.ebay.com/itm/204549289902?hash=item2fa01677ae:g:1QMAAOSws7NlXS6X

Note: I have no idea who this EBay user is or if the drive works, I just grabbed the link as it was the same as the one I bought.

You might also be able to boot it using an IDE CDROM drive but I didn't have one of those and, at the time, the cost was the same for the parallel one as an internal IDE one.

As for the 54832B, I can't really help there as I don't have one and so I never checked those ISO files when I grabbed the folder off the HP FTP site

I'm sorry that I can't be more helpful.

TonyG
alpher:
Here's a link to my images of my 54845A , windows ME images are based on Intel I810 chipset mobo installs.
Theres one with the version 45 (latest that I know of) but I think it's win98 on an original AMD mobo, I did not like it as far as I remember.
Hope it will be of some help.
https://drive.google.com/drive/folders/1w3_B7vnozDZKYdfuwL9VvBMuRDxwnoF2?usp=sharing
BoscoLab:

--- Quote from: Tony_G on November 28, 2023, 09:21:23 pm ---I can't help you with a CF card image but I was able to boot and upgrade my 54845A using the images in the OneDrive link I shared earlier by getting a MicroSolutions Backpack Parallel Port CDROM drive:

https://www.ebay.com/itm/204549289902?hash=item2fa01677ae:g:1QMAAOSws7NlXS6X

Note: I have no idea who this EBay user is or if the drive works, I just grabbed the link as it was the same as the one I bought.

You might also be able to boot it using an IDE CDROM drive but I didn't have one of those and, at the time, the cost was the same for the parallel one as an internal IDE one.

As for the 54832B, I can't really help there as I don't have one and so I never checked those ISO files when I grabbed the folder off the HP FTP site

I'm sorry that I can't be more helpful.

TonyG

--- End quote ---

Hello Tony,

can you tell me how you updated your 54845A? Which files did you have to use and in which order? Maybe you can document the update process?

Thank you!  ;D
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