Suggestions for old - bad scope Wittig W2022 - Page 1
Forum section: electronics / testgear

author: geek66
author_rank: Newbie
timestamp: April 10, 2018, 12:47:13 am
content: So a few years ago I picked this without doing much research, maybe $300? -- IDK.It works, but all of the issues are there ( SLOW, noisy, etc) . I was able to find a firmware upgrade, but all of the info was in German, and not wanting to brick it, I did not get far ( Regardless the sourceforge site is now gone:https://sourceforge.net/projects/welecw2000a/)So any ideas what to do with this?If anyone wants it make an offer.I am thinking of building a HV curve tracer, and then I could use this as the dedicated display.

author: thm_w
author_rank: Super Contributor
timestamp: April 11, 2018, 12:11:10 am
content: I have one that I dumped at work as I didn't need it at home anymore. Trigger on channel 1 is bad on mine, but channel 2 works ok.The firmware upgrade works, I used BF version which is what you linked to it looks like. Site is still up. It improves things quite a bit but there is only so much you can do, the base hardware is still limited and noisy.It might be good for a secondary display as you say. The roll mode works OK. Maybe try to trigger it off a two channel scope to use as a 3/4th channel, as it has an extern input.

author: geek66
author_rank: Newbie
timestamp: April 11, 2018, 03:15:52 pm
content: Thanks - I would feel guilty selling it to anyone that did not know what they were getting.As for the FW upgrade - It does seem to be there now - I was getting a failed page. Amazingly they did an update a month ago?... but I still do not know the procedure. Do you have any thing like that or know where it might be?

author: thm_w
author_rank: Super Contributor
timestamp: April 11, 2018, 08:29:25 pm
content: Download and extract the firmware:https://sourceforge.net/projects/welecw2000a/files/Open%20Source%20Firmware/1.2.BF.7.x/1.2.BF.7.14C2.zip/downloadCheck in the doc folder for documentation like how to upgrade.Will require a serial cable connected to the serial port.It may take a few tries to get the programming timing right, if I remember.Quote

author: tsman
author_rank: Frequent Contributor
timestamp: April 11, 2018, 09:01:52 pm
content: I remember these scopes. Somebody I know bought one. The Wittig brothers stalled him with vague answers until the return window slammed shut and then they ignored him after that.You have to use the RS232 port to do the update. The USB port won't work. The open source public firmware does make it better than the stock firmware but the actual hardware is incredibly noisy IIRC.

author: Hydrawerk
author_rank: Super Contributor
timestamp: April 11, 2018, 09:15:43 pm
content: I think that this scope is a load of crap.https://www.eevblog.com/forum/testgear/welec-w2000a-another-weird-oscilloscope/msg362581/#msg362581

author: simone.mannori
author_rank: Newbie
timestamp: April 12, 2018, 06:40:41 am
content: Hi,I have a W2022 too. Before the firmware upgade it was _unusable_. I bought it "second hand" (practically new) for 200 bucks (including accessories). After the firmware upgrade (Google traslate helps) the scope is slow & noisy but usable.The original sourceforge project page is gone (it was full of interesting info).The project is now available here:https://sourceforge.net/projects/welecw2000a/?source=navbarCheers

author: IvanX286
author_rank: Newbie
timestamp: October 16, 2019, 05:01:28 pm
content: Hello!!!i need help with my oscilloscope Wittag W2022after my update with new firmwire oscilloscope after power on not show boot screens.... what is wrong?germs on - workrs232 update - workaltera usb programing - work - after updating demo programs show picture - after power off and poer on nothing bootHelp!

author: Telegiangi61
author_rank: Newbie
timestamp: December 06, 2024, 03:18:41 pm
content: Hello, try to resume old question, me too have same problem, after upgrading to flash 1.2.BF.8.6C2 version (previous installed, 1.2.BF.8.1 works for years), i'm no more able to use ther DSO, only a black screen at boot.GERM works, cause if a try to load tomcat.ram firmware, all is fine, DSO works, but is not persistent, so at new restart i have balck screen.Every try to reload tomcat.flash firmware stops after some a while to address 00000000.Someone can help me how to rewoke the flash boot procedure?Thanks in advance