Hello.
The oscilloscope was bought on ebay, model SDS1202x-e, serial number SDS1ECDD2R****, the latest firmware 1.3.26 (picture 1). Channel X when connected to the built-in generator shows such a picture (picture 2). The probe is set to 1 to 10. Although the first time it was turned on, it was like this (picture 3). And here is 1 to 1 (picture 4). For comparison, channel Y 1 to 1 (picture 5).
Lowered sensitivity. Now channel X has a very poor sensitivity, it does not always register the frequency on all ranges, but only at 5 mV - 10 mV. The warranty seal is not damaged, no one opened the case.
I did the compensation of the probe, interchanged it, flashed to the previous firmware. It is flashed quickly, the file is being unpacked and then asks to reboot. The reboot time after this is like a normal boot. Calibrated, reset to default. Nothing helps.
Is this a hardware problem? Or the problem of calibration, firmware? Is the power for each channel separate or common?
@ "Taking a screenshot with "SDS 1202X-E" using the blue Print button that saves the file to USB pen drive."
Is it a known issue that the newest FW 1.3.26 makes the scope to freeze completely and therefore useless, when trying to save an image more than once?
The display reacts, but no button or anything else, even the lights are frozen. I have tested it with several USB models, however, no problem at all with the older FW, but always (!) with the new one...
I have read in another Siglent thread, with similar problems on other devices than a scope, because of more than one file on it...?!
At the moment I stay on 1.3.23, as 1.3.26 is too annoying as you have to pull the cable again and again, because of the missing on/off switch.
"Is there any specific setup when the scope freezes ?"
No, nothing special. First of all I thought that the scope is gone, (it is 13 months old +/-) but to be sure, I went back to the former FW and suddenly I could take snapshots without any issues any longer. I tried to povoke a mistake taking several snapshots one behind the other, but all went fine! So, I tried to upgrade again, having the same issue after the next reboot and first picture made. When I was happy to catch a spike and this happened again, while pressing the print button and anything was useless - totally frozen, I was fed up with 1.3.26 and stay now with 1.3.23. Never had any problem again, despite provoking a crash from time to time, but nothing freezes!
"Could you provide a link to that thread/post please ?"
It was in the Benchtop DMM-Thread.
Hello,
I have a new SDG6022X with firmware 6.01.01.35R5B1 and hardware 03-00-00-76-38.
I want in each channel a 20MSample arbitrary waveform. That does not work. The SDG6022X freeze.
It is possible to do a 19000000 sample large waveform in each channel but with a 20000000 sample large waveform it is only possible to load it in one channel. If I try to load it in the second channel than the SDG6022X freeze.
Is my SDG6022X damaged?
If this is a firmware bug I hope a new firmware will correct this.
Best regards
egonotto
Can someone from Siglent let us know when EasySpectrum will be upgraded to support the SVA series?
I am a bit confused by your "X" and "Y" channels. I assume you are referring to input channels 1 and 2?
Did you do all tests with the same probe (plugging it into channels 1 and 2 in turn), or with two separate probes? In either case, please try to exchange your probes between the channels, to see whether the problem lies in the probe or in the scope's input.
Picture 2 looks like the signal was AC-coupled via a very small capacitor, which could be a bad connection somewhere. You could try to wiggle the 1:10/1:1 selection switch on your probe, and wiggle the BNC jack at the scope too, to see whether one of these is fishy.
It seems Ch1 has a problem however we cannot see your settings. Please take a screenshot using the blue Print button that saves to a USB pen drive. Please set the scope exactly as this one is and nevermind is ch1 signal is something weird. Check both probes are set to 10x and the channel inputs 10x too.
Upload your screenshot into the Attachments when you make the post.
It seems Ch1 has a problem however we cannot see your settings. Please take a screenshot using the blue Print button that saves to a USB pen drive. Please set the scope exactly as this one is and nevermind is ch1 signal is something weird. Check both probes are set to 10x and the channel inputs 10x too.
Upload your screenshot into the Attachments when you make the post.Uploaded.
Thank you for your quick reply. I did it the exact way as you suggested and had two freezings within 5 minutes with 1.3.26. It is obvious that this occurs only from time to time and is probably not really reproducible. But as this never happens with FW 1.3.23 - at least to me - with always nearly the same procedures, it makes no fun at all having to cope with such a sporadic appearance...
Hello,
@tautech: thanks. I have in this C:Local several waveform files.
Among them a 19000000 sample large file (36.2MB) and a 20000000 sample large file (38.1MB).
I use this files for my tests.
EasyWave says 2<= #Samples <= 20971520=20*1024*1024
Just I have the 19000000 sample large file in both channels. As I try to recall the 20000000 sample large file in channel 2 it freeze.
Best regards
egonotto
I see you have ten times the sensitivity dialed in for ch 1, without this is the signal too small to trigger on ?
Can you please do another with the same settings for both channels but triggering on ch 2 ?
Can you please do another with the same settings for both channels but triggering on ch 2 ?Pics...
Hi tautech,
thanks for the update. Unfortunately, the latest Firmware still has the display bug. ei: Choose Scope, then display and set the screen to Black background. When you restart the scope it will sometimes be correct, but 90% of the time you get a wierd unreadable white screen that only goes if you press Scope / Display and set the screen to black background again. See attachment.
McBryce.