Just as well archive.org still has an English language version of the
user manual, as only German,Polish or Dutch seems to be available from
the h-k sites now

http://www.harmankardon.com/resource...lish%20EU).pdf

22 nov 2010 version

I'd noticed this business , but thought it was normal, not familiar with
htese sorts of beasts
"Letters flash in the Channel
Indicator Display (14) "
then goes on to say
"and Digital
Audio stops
Digital audio feed paused €¢ Resume play for DVD/Blu-ray "

So perhaps the last useage was DVD and stopped mid-play and the AVR260
is too clever to realise that if it is switched off at the mains then an
owner is not interested in resuming play.
As I don't have that DVD and disc of last useage a "factory reset " of 5
sec press of OK while in standby mode, is called for to delete this guff
from memory