Products > Test Equipment
Agilent 54835A scope (4 channel 1GHz / 4Gs/s) repair & uphack
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Gandalf_Sr:
I just put a low offer in for an Agilent 54835A on eBay "parts or not working" status - screen shows nothing.  Maybe they'll accept, maybe not.  What should I be looking for?  Is the Agilent 54845A a whole lot better?
nctnico:

--- Quote from: Gandalf_Sr on February 23, 2018, 03:15:55 pm ---I just put a low offer in for an Agilent 54835A on eBay "parts or not working" status - screen shows nothing.  Maybe they'll accept, maybe not.  What should I be looking for?  Is the Agilent 54845A a whole lot better?

--- End quote ---
You can uphack the '835A to an '845A by changing a few resistors. You get double the samplerate on all channels and 1.5GHz bandwidth if you only use channel 1 and 3.
Jwalling:

--- Quote from: osiris2099 on February 23, 2018, 01:43:24 pm ---Hello dear members, I currently have an issue with the GAL16vd8 chip on the scope. Next to the BIOS and RTC. Its fried and I cannot retrieve any info. Nor would the scope boot. Does anybody have the option to get the code from this chip labeled 1996 ami 73xx PODxxx and email it to me. thanks for your reply,
If you need pictures or else, please let me know, Best regards,
Nicolas

--- End quote ---

I may be able to help if it's not protected, and my programmer supports the device (I think it does). I'll follow up tomorrow...
In the meantime, please post the VIN # from the rear of the scope.
Gandalf_Sr:
My low ball offer was declined, so be it.  I'm not paying $900 for an as-is broken scope + $100 shipping.
TheSteve:

--- Quote from: Gandalf_Sr on February 23, 2018, 06:41:15 pm ---My low ball offer was declined, so be it.  I'm not paying $900 for an as-is broken scope + $100 shipping.

--- End quote ---

Run fast and far at $900.00.
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