Solution is to replace the DSP chip with newer revision chip.I've had this Yamaha RX-A2020 for a few years now - purchased new from BB. I have not used it myself much for the past 2 years since my teenage son has taken over the basement as his appt. He has used it every day and night for quite a while now. Lately when powering it on it takes a long...forums.audioholics.com
solution is the heat in the chip DSP.
Temporary workaround is to heat the chip. It will fail again. Quicker and quicker.