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Agilent 54835A scope (4 channel 1GHz / 4Gs/s) repair & uphack

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Tony_G:
From the upgrade PDF these models at some point supported XP:


--- Quote ---For models 54830B, 54830D, 54831B, 54831D, 54832B, 54832D, 54833A, 54833D

These models were originally released with the Windows 98 operating system. Newer units and
upgraded older units run Windows XP.

--- End quote ---

You could try copying the drivers from the ghost image locations for the Win98 bits(c:\windows\system32\drivers and c:\windows\inf directories). If the driver is a full 32 bit driver then there is a chance that it will work under Windows XP. Alternatively you could do the same thing with the WinXP image (c:\windows\system32\drivers )assuming acquisition card didn't change much (the driver might include support for the older cards)

TonyG
[Edited for clarity and my misreading of the PDF]

nctnico:
You can't use Win98 drivers on XP because the driver model is completely different.

Tony_G:

--- Quote from: nctnico on November 27, 2017, 08:24:13 pm ---You can't use Win98 drivers on XP because the driver model is completely different.

--- End quote ---

That isn't completely correct.

Windows Driver Model (WDM) was introduced in Win98. The previous driver model was VxD and it is also supported in Win98. That said, the driver in the WinXP image may be based on WDM and may be able to be used on Win98 - WinXP introduced new WDM features so a WinXP WDM driver may not work on Win98/Win2K but a Win98/Win2K WDM driver will work on WinXP.

Of course the driver could also be based on Windows Driver Foundation and thus be basically XP and up (ignoring UMDF & KMDF distinctions).

So there is a chance that the driver from the XP image will work on the Win98 one.

TonyG

dogbert:
I think the naming scheme used by Agilent/HP for the 54XXX series are confusing (546XX and 548XX has some models that might be mistaken as the other series).

For Infiniiums, 54830 series means 5483X where X is 1 or 2. They are the ones using VP22 motherboard that you can modernize to Win XP.

548X5 is the high bandwidth old Infiniium with the same PC software as the 5481X, 5482X that are hopelessly Windows 98. The 54835 you are talking about belongs to the same class as 54845 and 54855, which has nothing to do with the so-called '54830' series.

Hope it helps.

Jwalling:

--- Quote from: dogbert on December 04, 2017, 09:20:40 am ---I think the naming scheme used by Agilent/HP for the 54XXX series are confusing (546XX and 548XX has some models that might be mistaken as the other series).

For Infiniiums, 54830 series means 5483X where X is 1 or 2. They are the ones using VP22 motherboard that you can modernize to Win XP.

548X5 is the high bandwidth old Infiniium with the same PC software as the 5481X, 5482X that are hopelessly Windows 98. The 54835 you are talking about belongs to the same class as 54845 and 54855, which has nothing to do with the so-called '54830' series.

Hope it helps.

--- End quote ---

That's not quite correct. The 54850 series (54853A, 54854A, and 54855A) use the newer VP22 motherboard as well and came with XP. I know, because I just finished a repair on a 54855A for a  customer.

EDIT: I think a good way to tell whether they are first or second generation (or later) Infiniiums, is if it says "Megazoom" on the front panel.

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