Yamaha HTR-6030 Receiver "nd stands" Questions

Onkyo TX-DS575X, remote intermittend malfunction Hi, On my TX-DS575X is the following problem: Most of the times the remote is not working (Yes, I pressed audio button first). Sometimes when it works,

...stands for Speaker. Could possibly be due to thermal or overload protection. Was it playing loud when it shut off? On all channels at the same time? Are you speakers particularly low impedance? If ...