New Hantek DSO2X1X models?

[DavidAlfa]

Leg fix. Drilled the 3d print, melted a M3 insert in and used a large washer to spread the tension evenly.
(Yeah the printer needs some retraction tweaking, this is petg not pla).

Seems pretty solid!

[TheQuentincc]

Hi, I have the DSO2D15 and some button aren't working properly, for instance the single button can trigger all of these other buttons :

I updated the firmware but it didn't help, I'm gonna contact the seller I bought it from... In case they don't want to fix or replace my scope, do you guys have any idea how to fix it ? I never opened it before but this type of issue looks like a bad ribbon somewhere ?
Thanks for your help

[DavidAlfa]

The buttons are all sampled using three wires (Scan reset, Scan data, Scan clock), it might be a bad ribbon  onnection or a solder defect, luckly for you the button board is very simple, there're only 3 ics and few resistors.

I don't think it's the ribbon, otherwise you would get nothing or random input, not exactly the same buttons everytime.

Thanks to @Pcprogrammer (He fully reverse enginneered everything) we have schematics:
https://github.com/pecostm32/Hantek_DSO2000/blob/main/Schematics/User_Interface/BUTTONS.png

Looks like only one column is working? (See attached picture).
Thus, I'd start by checking U2 and its connections, specially pins A,B,C (9,10,11).
Then check U1 (Ripple counter) and ensure all its outputs are toggling on/off at several KHz.
I recall seeing a 600kHz signal in key master clock.

[unicornio]

hi, there!...

i want to add a fan to my hantek oscilloscope dso2d10, so please, if any one know the size of fan that fit, please let me know...
i want to buy one whitout teardown it...;-)

many thanks and electronics greeting from spain

[DavidAlfa]

Not required and possibly another source of electrical noise for an already wonky design, I wouldn't do it, but you only need to remove the 4 screws holding the back to check the dimensions, no need to put it to pieces.

Or use the search button!
https://www.eevblog.com/forum/testgear/new-hantek-dso2x1x-models/msg3896411/?topicseen#msg3896411

[TheQuentincc]

Thanks for your answer, so I dismantled it a bit but it doesn't look that bad, I mean traces of flux shouldn't be an issue for a button... I'll clean that and reflow Ux IC, otherwise I don't have tools to measure the 600kHz signal... could I use the scope itself, half dismantled to check it ?
Thanks again

edit : so I reflowed all the IC, it seems a bit better but I still have the issue sometime...

[unicornio]

i make a test with my hantek awg of the dso, and a wandel&golterman spm15, and my hantek 6,5 digit multimeter, at 1khz, 0dbm, and the results are perfect...;-)

[unicornio]

thanks so much,

i find that the fan is 50*50 mm, so i can buy it without teardown my dso!...

so many thanks and electronics greetings from spain

[DavidAlfa]

Following this, the new display arrived, fits exactly like the original and the image quality is just as good.

Leaving the AT070TN94 link for everyone:
https://www.aliexpress.com/item/32918916584.html
(It's the 5mm model)

[vistorik]

Leaving the AT070TN94 link for everyone:
https://www.aliexpress.com/item/32918916584.html

Page Not Found 

[geostep]

Link worked for me.

- George

[blackbile]

Why did you have to change the LCD?

[GraemeG]

You can see in the second picture on this post https://www.eevblog.com/forum/testgear/new-hantek-dso2x1x-models/msg4985563/#msg4985563 that he had dead pixels on his original display.

[DavidAlfa]

Yep, the scope freezed, toggled the power off/on and one line appeared!
Few days later I got another 

[nokin]

Hello, long time no see you guys 

I've "upgraded" my scope to Rigol Ds1102z-e and I found the analog feeling again. Much faster, more realtime feeling, more reality more sensitivity especially for audio analog calibration such as tape decks. No longer laggy.

The output waveform from these machines is not steady like function generator so DPO (Siglent) or Ultra Vision technology of Rigol is much more suitable.
 
I've got mine $180 for mint unit, look like brand new with all catalogue and calibration certification.
Quite happy purchasing.
 

[aleph0]

I recently purchased DSO2D10 oscilloscope and it worked fine for a couple of days.
Today it began to lock up after boot and none of the buttons work.... Note that the button LEDs are all lit and no channel signal is displayed either.
I spent hours searching this forum but all of the "locks/freezes" I found were easily resolved by turning the scope OFF/ON which in my case does not help.
I have already contacted Hantek but given their record, I'm not expecting much.

I'd appreciate any help in debugging this.
Here are some pictures and a video of the problem: https://mega.nz/folder/peQBVASI#DWsjU1AMZSFBskD4B_fbeA

[BillyO]

I recently purchased DSO2D10 oscilloscope and it worked fine for a couple of days.
Today it began to lock up after boot and none of the buttons work....

I hope you didn't see this thread before you made your purchase .. or see any of the negative reviews on the internet.

I honestly can't understand why anyone would buy one of these when Siglent and Rigol (and other manufacturers) with great reputations build fantastically better instruments for about the price of a Big MAc dinner and a 6-pack more.

Sorry this happened to you and I hope you discourage any you know of thinking to buy one.

All that said, you are in the right place to get help but you will need to do A LOT of work.

Good luck.

[nokin]

The trace of Ultra Vision technology is much difference from Hantek or others normal DSO.

If you need real digital scope but affordable so any Rigol (must have UltraVision) is my recommendation.

[DavidAlfa]

Today it began to lock up after boot and none of the buttons work

Check the FAQ in my signature, "Recovering" section.
First try to make a Factory reset without flashing platform-tools, so you don't lose the calibration data.

[aleph0]

Thank you for the replies.

I found a windows box to try DavidAlfa's suggestion and here's how it went.

First I attempted a preliminary backup just to be safe. Put the scope in FEL mode, installed PhoenixSUite and zadig, confirmed that the USB device showed up properly in the device manager and ran "read.bat" from DSOFlash, but that failed. (1st image)

I then installed the Keysight IO Lib package and restarted the scope in normal mode. The software recognized the scope and I sent it the PRIVate:FACTORY:RESET command. The command "worked" in the sense that the scope immediately rebooted and the signal stats I had configured earlier, before the lock up, disappeared. Unfortunately the buttons are still all lit up and none of them work. And there's still no channel signal being drawn. (images 2 and 3).

I remember that when the scope was working, right after booting there would be some clicking noises (relay? for the AWG?) and then if memory serves me right the WAVE GEN and other lights would go OFF. Now there's no clicking and the lights stay ON. Maybe there's something wrong with the hardware?

edit: I should also add that before the factory reset the stats "count" would continuously increment as can be seen in the video in my post above, indicating that the phoenix process is probably running fine. this would be consistent with a the hardware error hypothesis where a relay that was supposed to switch never did, leaving all the lights ON and the phoenix process "waiting" for a signal that never arrives.

[DavidAlfa]

It's strange, should be working.
Are you properly setting the scope in FEL mode by pushing the button at the bottom? Nothing should appear in the screen.
This is the device you should install WinUSB driver to, using Zadig.
Then, you must start DSOflash only when the scope is already in FEL mode and connected to the computer.
Give it some more tries.

Maybe the flash is corrupted. The only priority now is to backup the generator calibration, everything else can be easily restored.
Might sound dumb, but had this happening several times, got some fixed by simply pressing Default Setup button, so try that!

[aleph0]

I tried installing the zadig/winusb driver again and now DSO flash is reading! I think my previous error was that I installed zadig before phoenixsuite..
Anyways. in about 20 minutes I should have a backup of the flash.

Thanks DavidAlfa! Was DSOflash written by you? Is the source code available?
edit: d'oh, I see the source code up on your drive.

[DavidAlfa]

Yes, it's based in xfel.
So the buttons don't work at all?

[aleph0]

nope, not even "default setup"

you can see the behavior in this 30s video: https://mega.nz/folder/peQBVASI#DWsjU1AMZSFBskD4B_fbeA/file/sb5U0TiT

[DavidAlfa]

Now you made a backup it's safe to do anything.
Download platform-tools and flash the latest version.
As always,
 it's in the FAQ.