Unitl now I used a Raspberry PI of the First Generation Model B with OSMC Jarvis and everything was fine with an old CRT TV, however this device is very slow - Composite Video and Analog Audio.
So I purchased a new Rasp Pi 3 and installed OSMC Krypton and connected the device with the combined audio/video cinch adapter. Moreover I'm using the same power supply (2A, 5V):
What can I say. The video qualitity seems to be much better, however I've problems with the audio signal.
Some videos seem to be ok and others noise pretty much. Also the noise is getting worse by time. If I pause the video its ok, but if I stop the video also the osmc desktop noise really much.
The same videos watching on the old Raspberry Pi device didn't noise in any way.
Also I've tried out different cinch adapters with the same result.
One idea is changing the power supply. What do you think is a good solution?