It is in an open cabinet so I don't think it is overheating. I have had that problem with other components in the past and it is always worth considering. It has not acted up for a week or more now so I am keeping my fingers crossed.

Thanks.

Wayne

System 1: 861v6+ID40, UHD722, DSP640x2, DSP520C, DSP320x2, DSWx2, Sony XBR-100Z9D, Oppo UDP-203, Kaleidescape, AppleTV 4K
System 2: 808.3 upgraded to 808v6, MC200, HD621, DSP8000.2 with SE Upgrade
System 3: F80
Currently unused: DSP3200x4, DSP33x2, DSP33C, D1500, DSP420x2, G68ADV, G98DH, HD421