EEVblog #1146 - New Low Cost Rigol MSO5000 Oscilloscope

[danosimo]

Just so people can see it before downloading and printing, here are a couple of snapshots of what it looks like. And please be kind, I know I am not the best designer by far...... I do what I can.

And can anyone help with being able to read the internal temps via SSH in the command line? I am sure we can get some more accurate temp inside this way. My Siglent bench unit can only handle 1 temp probe and I have also used an infrared for external temp reading, but it would be good to see the temps at the core of the CPU at least. But again, after 1 hour of continuous sampling (two channel @4GSa/s) it shows stable at 43c approx. in a 25c degree room, so it is a very effective solution. Huge improvement no doubt.

Anyone?

[oliv3r]

I did a IC Identification for the back side of the Main PCB of this device:

Thanks CChin254, I guess I like your style a bit better then what I did here: https://gitlab.com/riglol/rigolee/-/wikis/MSO5000-teardown

Though as I want to keep it as one picture, I'll have to see how that can be done; but some new items here is good!

Btw, the reason my picture looks so 'weird' is that it's very high-res close ups and double sides overlayed. But for the chip identification, using a clear single sided picture probably works better

Also, I'm in agreement with

Hi CChin254 I do not understand why they use Spartan 6 for communication between Kintex and Zynq the both Kintex and Zynq have a Gigabit Transceivers the more efficiently would be use GTX for sending data between Zynq and Kintex...
Probably Spartan 6 placed for other purposes...

I don't think the Spartan sits there exactly like that, as we can very clearly see the high speed communication lines between the Zynq and the Kintex7 (especially on X-ray). So are you certain that the Spartan6 is not some sort of 'controller'. IIRC the spartan6 only has a (slow) SPI link ... It's been too long since looking at the architecture, and sure want to pick it up again

[CChin254]

Yeah I need to figure this thing out, I'm just too busy now of days since school started (last year of High School). Hopefully I can figure this out and fix the block diagram soon enough. Thanks for letting me know anyways!

[ktro]

Any progress on line thickness in XY mode?
Thick marker line is terrible

[ktro]

Latest firmware (01.03.00.01) fixes XY line thikness.
 Now it is perfect!

[Alekkomi]

Just so people can see it before downloading and printing, here are a couple of snapshots of what it looks like. And please be kind, I know I am not the best designer by far...... I do what I can.

And can anyone help with being able to read the internal temps via SSH in the command line? I am sure we can get some more accurate temp inside this way. My Siglent bench unit can only handle 1 temp probe and I have also used an infrared for external temp reading, but it would be good to see the temps at the core of the CPU at least. But again, after 1 hour of continuous sampling (two channel @4GSa/s) it shows stable at 43c approx. in a 25c degree room, so it is a very effective solution. Huge improvement no doubt.

Anyone?

I will share a very successful struggle with the problem of high heating of the oscilloscope. I decided to power the fans from a separate 12V power supply, shielded with copper foil, the supply wires from the native power supply to the main board were also shielded and put on a common screen on the case.
The casing covering the heating elements was made without holes, the fan was turned around, the casing around the fan was raised close to the crate of the back cover to exclude the capture of heated air again, installed an additional fan on the second crate on the intake of cold air, and reduced its speed, because it is too noisy than native.
There are also thermal images after 20 minutes of work before and after modernization.

[Martin72]

Man, your warranty is surely void...

Notes:
-I would take thermal images from the back with a grain of salt.
There is only metal/aluminum behind it and that reflects and the measurements become inaccurate or say nothing.
-If the temperatures inside have really dropped so "drastically", a new calibration is definitely due.

Interesting work though..

[Alekkomi]

Man, your warranty is surely void...

Notes:
-I would take thermal images from the back with a grain of salt.
There is only metal/aluminum behind it and that reflects and the measurements become inaccurate or say nothing.
-If the temperatures inside have really dropped so "drastically", a new calibration is definitely due.

Interesting work though..

My guarantee was conditional. The pictures from the back show the hot air outlet and the heating of the casing, it is plastic. As for calibration, thank you, I will definitely do this procedure.