Hi Steve

I would like to PM you and get as much help/advice as possible but attempting to do so results in a "We Encountered A Problem
swpnt is over their Private Topic limit."

My very first question is: How to check outputs on suspect psu? - an ECM40UT31 with a light coating of dust in a few places especially around the large brown capacitor.
Using a multimeter I have found 2 x 5v, 1 x 11.93v and 1 x 12.23v outputs - presuming the multimeter is reasonably accurate. Are those values for the 12v outputs within tolerance?

If "No" where do I find an ECM40UT31 (or ECM60UT31 if that is a replacement)?

If "Yes" what else would cause a G61R in standby mode to start flashing the "Boothroyd Stuart Meridian" startup logo?
I tried power off, left it for about 15 minutes then powered on: the startup logo is displayed and nothing else happens - system fails to boot?

A quick visual inspection does not show anything obviously amiss ... except for some uncertainty over a capacitor on the backplane which looks a little "domed" on the top - I probably should move power lead out of the way and have a really good look. It is the lowest capacitor on the backplane situated behind the mains power input/switch area. Is it meant to be slightly domed?

Thanks