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Tektronix TDS1000B and TDS2000B series hacks

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clodnut:
Thanks for your work on this, braikin.

Your efforts have given my aged TDS1001B (Mono, 2 Ch, 40 MHz, 500 MS/s) a new lease of life as a 100 MHz TDS1012B.

5 ns/division scaling has become available and FFT mode confirms 1 GS/s acquisition.

I tweaked your Python code to handle model ID 0x13 -> 0x12 for the TDS1000B series.  Your approach of clearing the LPF settings seems to work for the TDS1000B-series, whose max. bandwith is 100 MHz rather than 200 MHz like the TDS20xxBs.

I don't have the kit to measure the new bandwidth properly but the stock probe and a Rasberry Pi outputting a square(ish) wave gives a 2.12 ns rise time, suggesting comfortably over 100 MHz bandwidth.

The calibration seems fine by eye (no weird offsets or dodgy scaling cycling through various ranges) but, again, I'm not set up to do a full cal.

Thanks again!

vanbac:
hello clodnut.
Congratulations you've successfully upgraded can you guide me the steps to upgrade on YouTube thank you very much.

DogP:

--- Quote from: tautech on July 16, 2017, 05:40:30 am ---
--- Quote from: dav on May 15, 2016, 10:10:19 am ---If you should find how to entering the engineering mode, please post it on the forum!  ;)

--- End quote ---
In this new thread:
https://www.eevblog.com/forum/testgear/tds-1000-2000-3000-bw-hack/

--- End quote ---
I didn't see engineering mode in that thread... did I miss it?  In the case of the TDS 3000, the TDS3ENG hack is totally different, as it unlocks the available modules.  The TDS 1000s and 2000s didn't have those modules, and instead "Engineering Mode" looks to be an option in the menu (similar to Service Mode).

Any further progress on any TDS 1K/2K stuff?  I used to have one of these on my desk at work, and I just bought a 2024B for home.  Not the best scope I've ever used, but nice and doesn't take up a lot of bench space... and the deal was too good to pass up.  Since it's already the highest freq/sample rate 2024B, I guess there's no possible "upgrade".

I sifted through the firmware binary, and it looks like there are still some interesting mysteries to unlock.  Maybe not all of them are important - engineering mode (doesn't look that interesting), the code to enable memory pokes from service mode (again, probably not very useful)... but how about the section with "A:\PAUL", "\GEORGE", "\RINGO", "\JOHN", and "A:\POLLY\LITHIUM".  If I create one of those directories does it load up an XY plot of a Beatles or Nirvana album? :P

DogP

bootboot:
Hi! Can you share me the backup ROM file?
My TDS2022B Can not bootup, it dead at 3 LEDs light. :-[

vanbac:
Hello please help me I want to upgrade the bandwidth but I read data of ROM thank you.

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