Products > Test Equipment
Tektronix TDS1000B and TDS2000B series hacks
braiden:
Wow, nice work making the color display work!
Its good to know your scope works after the upgrade. It means what I've done here should work for b/w models too. I wasn't sure it would, when I accidentally programmed a model id with a channel count mismatch i got a brick. Sounds like display mismatch is more forgiving.
I still haven't been able to find affordable hardware to do a cal, but I did pick up a 500mhz freq synthesizer. Results are: frequency response is not as flat as i'd like. Everything's good through the original 60mhz. After that the sin wave amplitude creeps up (as high as 125%) before coming back to 100% at 350mhz and dropping off pretty sharply after that.
If there's interest in what you'll get with the hack I can draw a bode plot. With caveats: I assume my signal source is level (spec is +/- 0.5db). I'm using cheap cabling and termination, maybe that's adding some induction(?).
I'd like to play with the attenuation setting in cal more, but the socket i got for rom doesn't fit.
braikin:
For what its worth, here's a plot of a nominally 3 VPP sin wave from 1-499mhz. Different test setups result in very different results. I'm using the stock P2220 probe with a BNC tip adapter plugged into a 50 \$\Omega\$ passthru terminator connected directly to signal source output.
oaba:
I have an TDS2002. I got the firmware out of flash Am19DL162 . How can I find the model numbers?
Hence the different firmware and flash size. Or dou you have firmwares to compare?
Thanks in advance.
braiden:
I've only looked at TDS2002B, not the TDS2002 which may be totally different? If you're looking at a non-B model, there is this thread: https://www.eevblog.com/forum/testgear/tds-1000-2000-3000-bw-hack/
If its a "B" model, the model id is at 0x7f0007 in the physical ROM dump, and you should expect to find 0x0D corresponding to TDS2002B. Other model numbers are documented in patch_tds1k2kb_rom.py.txt linked above.
Within the "B" series there are no firmware differences between modules, they all run the same binary, the only relevant difference is the model and calibration data stored at the end of ROM, 0x7f0000 and 2546 bytes long.
vanbac:
--- Quote from: Argiros on April 29, 2018, 09:42:54 pm ---I am glad that you made it! Maybe I give it a try later.
I want to say that I make a BW model to a color. I figure out the pinouts and after many search I finaly did it. I saw the red the cyan all the colors.
Unfortunately my color lcd had two spots it came with that and I put again my b/w lcd. But I finaly did it. I ordered a new color lcd and finaly i will have a color model!
--- End quote ---
hello you.
modele: Tds1012b mono.
I see you've made a successful switch form screen color can you give me detailed instructions how to do thank you
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