Press and hold the 'tone control' and 'info' buttons and press power. This will release the protect. The first thing that show on the display will be the protect code to tell you why it shut down.
Hi @wapakboy
I have a feeling it is going to a protect mode,
based on the link below. try this:
Press and hold the 'tone control' and 'info' buttons and press power. This will release the protect. The first thing that show on the display will be the protect code to tell you why it shut down.
https://www.badcaps.net/forum/showthread.php?t=74641
Get this downloaded also:
https://www.manualslib.com/manual/1308053/Yamaha-Rx-V673.html