Hi guys,
i finally bought a fantastic DS2072 oscilloscope.
After an initial inspection, I updated the firmware to the latest version and installed all options thanks to this blog:
https://www.eevblog.com/forum/testgear/sniffing-the-rigol 's-internal-i2c-bus /The only flaw I found is that the fan is very noisy, my lab is very quiet.
To solve the problem, I purchased a quiet fan NOCTUA 60x60mm model NF-A6x25 FLX :
http://www.noctua.at/main.php?show=productview&products_id=48&lng=enIn order not to void the warranty, I removed the seal without damaging it.
I used the hot air station to heat the seal without damaging it.
The first step is to remove the 4 screws that hold the lids.
After removing the screws, start to heat seal the lid away slowly ....
the seal will remain attached to the lid.
Remove the nut of the BNC connector and all the screws that hold the shield
Here is the Noctua.
It provides as an option, the use of 3 speed settings for full flexibility
Providing 3000, 2400 and 1600 rpm speed settings via the supplied Low-Noise and Ultra-Low-Noise Adapters.
I have not used adapters.
Remove the connector on the motherboard and the fan screw.
The noctua involves the use of a fixing system in silicone to reduce vibration and therefore decrease the noise
here is the fan fixed with silicon supports
I had to get a plug adapter for the electrical connection.
Here is the fan installed :
At the end of the installation, I approached the cap carefully, leaning against the seal and gently pressing to adhere the adhesive.
Et voila changes you make with success!
Now the noise is acceptable
and the fan still guarantees a good ventilation.
I hope this guide will be of help to people like me who has the sensitive hearing!
Thank you and congratulations for the contribution given to the forum.
Bye
ilcibernetico