Possible PSU failure, two options really, if you feel comfortable with replacing the PSU yourself do a Google search of the forum for G68 or G61 PSU replacement, if not contact Marc Koval who is US based on this forum and he will quote.
Russ
Last edited by Carl; 2014-12-0103:22. Reason: Added link
Have to second the recommendation for Marc. Just had my G68 power supply replaced and it is a VERY reasonable cost for either a direct replacement or moving up to the LPSU. This is especially true when you consider the Meridian specific technical expertise you are getting with Marc. He thoroughly tested every function and ended up replacing a few capacitors that I didn't know where burned out when the supply failed.
I can PM his estimates for mine, since it was just a week ago, if you would find it helpful to get a general ballpark.
Living Room: TV-->Sonos Arc with Symfonisk rears and twin Sonos subs. Also, a set of DSP8000SE with a MiniDSP SHD for stereo listening. Listening Room 1: G65, DSP7000SE, DSP3300, DSP3200 Roon Core: NUC7i7