Products > Test Equipment
Agilent 54835A scope (4 channel 1GHz / 4Gs/s) repair & uphack
eurofox:
--- Quote from: Converter on November 11, 2017, 05:13:34 pm ---
--- Quote from: Jwalling on November 11, 2017, 04:51:28 pm ---Thanks for the clarification. Have you thought about upgrading it to a 2.25GHz 54846A/B? :popcorn:
--- End quote ---
Yes, I want to follow your example. In any case, I will try. Has someone succeeded in the calibration procedure after changing 54845 to 54846?
I also have a couple of questions: how to get access to the Windows desktop in this device? What drivers are needed to use usb flash memory to save screenshots in it?
--- End quote ---
I did the removal of the resistor to change my 54845 to 54846 but many errors in test and crash finally the test program.
Calibration attempt fail immediately.
Windows function is easy just by "Ctl key" and "esc key" on the keyboard.
I got my usb working but don't think I used a special driver, I suppose it is available in Windows 98.
I collected a usb driver that I find just by google somewhere on the net but did not use it.
Jwalling:
--- Quote from: Converter on November 11, 2017, 05:13:34 pm ---
--- Quote from: Jwalling on November 11, 2017, 04:51:28 pm ---Thanks for the clarification. Have you thought about upgrading it to a 2.25GHz 54846A/B? :popcorn:
--- End quote ---
Yes, I want to follow your example. In any case, I will try. Has someone succeeded in the calibration procedure after changing 54845 to 54846?
I also have a couple of questions: how to get access to the Windows desktop in this device? What drivers are needed to use usb flash memory to save screenshots in it?
--- End quote ---
I think you'll be the first to upgrade to a 54846 successfully if it works!
Is this the right manual? http://www.elhvb.com/mboards/zida/manuals/CreatN10.zip
(Manual covers a slot processor version as well)
There is an "upgrade" for Win98 USB thumb drive support out there. It does work on these scopes.
It's been quite awhile since I did it, but IIRC it was this link that worked for me: http://www.technical-assistance.co.uk/kb/usbmsd98.php
The desktop on these is weird, I've never been able to customize it, but I didn't spend much time on it either.
I don't think you can minimize the scope app, only kill it with CTRL ALT DEL or possibly with CTRL ESC and end it from the taskbar.
Converter:
Jay, your manual seems to fit (page 14).
I tried to reset the jumper, as you described. It really does now show 54846B. However, the calibration was not successful for each of the 4 channels. I do not know what is the reason, I think there are hardware differences that do not allow to make an upgrade 54845 to 54846 (or fine-tune the input amplifiers).
eurofox, thanks, I'll try to do it. I correctly understand that now you have the opportunity to use a usb flash to save the screenshot files?
eurofox:
--- Quote from: Converter on November 11, 2017, 07:20:58 pm ---Jay, your manual seems to fit (page 14).
I tried to reset the jumper, as you described. It really does now show 54846B. However, the calibration was not successful for each of the 4 channels. I do not know what is the reason, I think there are hardware differences that do not allow to make an upgrade 54845 to 54846 (or fine-tune the input amplifiers).
eurofox, thanks, I'll try to do it. I correctly understand that now you have the opportunity to use a usb flash to save the screenshot files?
--- End quote ---
Yes I have replaced the floppy disk by 2 usb connectors and I can copy files.
Converter:
Agilent program is more convenient to close "CTRL" + "F4".
In the original set, Windows did not have a suitable driver for flash memory. I installed this driver: http://www.technical-assistance.co.uk/kb/win98fe-usb-mass-storage-drivers.php
Now there's a removable disk (:E) and it works great.
Maybe someone managed to upgrade to Windows 2K?
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