I don't have a service manual for this receiver but I checked the 6V
standby voltage and the 15V line from the standby power supply and
they both are at the correct voltage and have low ripple. I've heated
and cooled the boards with no change of symptoms. The problem began by
the receiver turning on in the middle of the night. Reset the micro
but it happened again 2 hours later. Now it clicks off when on from
anywhere from 2 seconds to hours. Is there a common fault for this
receiver causing these symptoms? Thanks. Chuck