New Rigol dho804 oscillocope

I use  the power adaptor provided in the accessories box and I connect it to the AC power source (220 V, 50 Hz ).

No.  You already have a 15v 3A supply but something isn’t working properly.  You may need a 12v 4a supply but it must be a USB-C PD3 supply as the scope will tell the power supply what it needs.  Don’t just plug any old supply into it: go back to your seller and tell them it doesn’t work

The main question is, what is the power input on his scope. Is it USB-C or a circular bayonet connector ?
Can the OP post a photo of the power input on his scope ?

It’s USB-C

OK, than you need an USB-C power supply.
In this case, I do not understand the photo, which Jan Cumps posted couple of hours ago - https://www.eevblog.com/forum/testgear/rigols-new-dho800-oscilloscope-unbox-teardown/msg4965181/#msg4965181

where at the adapter is clearly indicated as a the circular bayonet connector with + inside and - outside.

But, I am almost sure, that the power source is not a problem. If the scope is able to display a Rigol logo for five minutes and do a restart after that a go to loop, it really looks like a firmware problem.

PavelKCZ  Can I do something to reset firmware before start up operation? To make sure it's not a charger problem.

Yeh, that’s confusing: the referenced PSU has a circular connector according to the datasheet, but the text with that message implies it has USB-C and same poster’s picture of the back of his scope shows a USB-C socket.

I would not recommend any reset or any similar operation.
If the instrument is under the warranty, the only proper way is to contact the vendor and ask for exchange for working instrument or money back.

PavelKCZ You are right , the cost of purchase, shipping and taxes was exorbitant, about $500.

I ask for why this pin is exist although that the USb type C is the same for two directions

I ask for why this pin is exist although that the USb type C is the same for two directions

 .

 Hi  ahmedfotoh  you need a 15V 3A DC power supply with THIS USB C connector.

Please look on the back side on your scope:

So, if you have another device this is wrong. May be that Rigol provide a universal power supply.
But the cord with such USB connector AND with this coding pin must be mounted into the power supply.
In the manual is a caution (page 13) that you do not use the PS for other devices.

Here the official website:

https://www.rigolna.com/products/rigol-digital-oscilloscopes/dho800/

Please read careful the manual.

Well USC C has power wires that are "normally" mounted mirrored on the plug, but not a universal power supply.

So, you can rotate ("normally single voltage"), but not this for the Rigol. 

Regards

Gerald

---

 geralds  Ok , Thank you very much for this clarification, I understand that the my adapter i not the proper one and I need another one has 15V 3 A but it has the same terminal of Rigol no the universal Type C one?

How can I update its firmware without turn on the device ?

It is possible that the DHO8xx is different from the DHO9xx - but as you can see from the picture above my DHO924S is being powered and working with its own PSU plugged into the FNB58 USB meter and a standard (but good quality) USB C cable connecting the FNB58 to the Rigol scope.

MK

Hi  michaelkellett 

TOP!!! Yes, your tip is right.

Both scopes use the same PSU, USB C / 15V 3A.  

for ahmedfotoh: Which power supply do you have, recommending, and where can he buy it?

...the USB meter FNB58 looks good.

...what are your experiences with your DHO924s?

Regards

Gerald

---

I'll try to get round to a mini road test of the DHO924 in a couple of weeks.

MK