After many years of fantastic service the ol girl has finally started playing up. After being on for 15-30 mins the digital display will show "power off" and then the amp will switch off and back on again. Once it is back on it usually will show the same message and go through the same cycle again after a couple of seconds and would continue to do so unless switched off.
I have googled but found little helpful info about the subject and a call to Pioneer yielded a "take it to one of our authorised service centres".
Before I do so, has anyone here serviced this model before or have any clues on what might be causing the problem?
Thanks for any help offered.
ps. if anyone has a pdf of a service manual or schematic could I please have a copy?