Friday, my 6620N started shutting itself off while watching TV. This happened on several channels and appeared to be random. I eventually unplugged it for a couple of minutes and it seemed to work better. This does not happen if watching a recording.
Today, it started this again but only on channels 30-1 and 30-2. No amount of unplugging or powering up or down changed this behavior.
Here's the symptoms:
Watching TV, change to channel 30-1 or 30-2, TVIX shuts itself off in 5-40secs, happens every time I try, all other channels OK.
I noticed that if I look at the guide after selecting one of the problem channels, the guide says "No Channel." If I scroll through the guide from another channel, the info EPG appears normal until I select 30-1 or 30-2.
After restarting it from the unintentional power off, it restarts in the menu, rather than back on the tuner.
Things I have tried:
Unplugging and powering off/on - several times.
Starting a recording on a channel and then changing to 30-1/2 to force use of the second tuner.
Downgraded to 2.0.9 and reset to factory defaults.
Re-Upgraded to 2.1.0 and reset to factory defaults.
Re-scanned channels again.
All these changes have no impact. Unless someone has a bright idea, I may have to exchange my unit.