Products > Test Equipment
Conversion of 500MHz TDS744A to 1GHz TDS784A
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Jwalling:

--- Quote from: oaba on August 31, 2018, 11:04:30 pm ---I got it.
Is it possible to modify the firmware? Is that in the NVRAM.
Have you replaced it or saved it?
To prevent future problems.
Thanks.

--- End quote ---

It's possible, but I wouldn't try it. Google Tekfwtool. You may brick your scope trying...
Alfons:
I did it now and it worked immediately. My TDS744a with firmware version 1.1e is now a TDS784a. However, in the first test, signals recorded at 4GS / s showed strong distortions, switched to 2GS / s (two channels turned on), everything was normal. I then ran SPC, which ended with "pass". After that everything was back to normal, the distortions were gone. The bandwidth has doubled and it looks quite accurate even without calibration.

strick:
Alfons,
would you mind sharing how you updated the firmware on your 744A?  I've updated the 540A series and the 500/700C series, but I haven't seen a tool that worked on the 744A.  All the 744A boards (except one) had the 2F008SA flash and the normal Tektool was built for the 2F016.  Tektool5 is around and works ok for the 500A series but is for the 2F010 and 2F020 chips.

thanks,
Strick
radioguy123:
Is it possible to convert a TDS540C into a TDS580C ?
Alfons:

--- Quote from: strick on November 06, 2019, 01:46:01 am ---Alfons,
would you mind sharing how you updated the firmware on your 744A?  I've updated the 540A series and the 500/700C series, but I haven't seen a tool that worked on the 744A.  All the 744A boards (except one) had the 2F008SA flash and the normal Tektool was built for the 2F016.  Tektool5 is around and works ok for the 500A series but is for the 2F010 and 2F020 chips.

thanks,
Strick

--- End quote ---

Maybe I did not express myself correctly? I did not change the firmware, but the hardware (remove one resistor and few C's). But that is synonymous here everything in the thread. I have not read anything yet that somebody managed to put up another firmware.

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