What "black screen" are you talking about? Please describe the problem further - it does not happen here.
You might want to
- change hdmi cable and tv hdmi socket to test for a bad connection
- put a little pressure on the hdmi plug in your android box (with a small rubber band or some weight) - there are quite a few reports of badly soldered hdmi sockets
- check the kodi settings for "adjust output frequency" and set them to "at stop/start" and add a time delay of 2-3 seconds so your old tv can catch up with the frequency change