6022BE defective. Question about diode

Can · Post time 2017-8-10 12:00:18

Hello there,
I was using my 6022BE yesterday and accidently shorted out the probe with mains voltage (230V) which fried the oscilloscope. After opening it up and measuring some components I found out that the diode D1 was shorted in both directions, which results in a short to ground. I was wondering if I could get a part number for this diode so I could replace it with a new one.

Best Regards

Can · Post time 2017-8-10 19:13:31

Ok that did not work. Would it be possible to get a schematic so I could check some power rails etc.?

Can · Post time 2017-8-12 16:10:34

Yes I replaced it and the short was fixed, but I have a feeling that the usb controller might be damaged. I will check for other shorts to ground today and see if I can find anything.

Can · Post time 2017-8-16 17:02:21

Edited by Can at 2017-8-16 17:27

Yes they are all shorted out. Is the USB Connector fried?

EDIT: OK I just checked again and it is indeed not shorted. One of them is connected to ground the others are not. I got these results in diode mode:

1. 0,942V
2. 0,629V
3. 0,175V

I also connected the scope with another USB cable and checked some voltages. By doing that the computer registered a device, but did not recognize the scope properly.

This is the device manager. As you can see the computer can not recognize the usb device

Can · Post time 2017-8-17 16:11:59

Is there a way for me to check the usb controller for functionality?

Here are some screenshots:

Can · Post time 2017-8-28 05:18:17

Could I get some help please?