I bought a Sony SW7600GR a month or so ago and two weeks ago I bought the Sony power
supply adapter recommended for the radio.

Yesterday I unplugged the adapter to check and changing batteries if required, (Ni
Cads) and when I re-plugged the adapter into the radio it indicated no battery! I
thought that the battery was shot but as soon as I unplug the power adapter the radio
will kick right back in. It had me quite puzzled for a bit but then I noticed that
there was no metal positive socket on the tip of the adapter plugin. I had plugged
and unplugged the adapter several times before with no problem but this last time the
positive socket must have remained where it was on the positive pin when the plug was
removed.

I think that I can see the collar of the positive tip on the positive pin down in the
hole but I am not 100% sure.

Now the question I want to pose is: Is Sony responsible for getting the old positive
tip out of my radio, along with replacing the power supply adapter

PS Has anyone ever had this happen to them??