My Panasonic DMR-83EB DVD recorder has shown "U80" on it's display a couple of times in the last month. It has then gone into "self check mode" and after about a minute has been OK. 
What does the "U80" mean? Is it a problem? If so, it is still under warranty.
Thanks in advance.
Mikembe

What does the "U80" mean? Is it a problem? If so, it is still under warranty.
Thanks in advance.

Mikembe
