Lexicon MC-1; DC-1 Power supplies

Just joined the ranks (again) of a blown PS on a MC1. HINT --- LEAVE THEM ON STANDBY AND NEVER EVER UNPLUG THEM for as long as you can. The cold start is what kills them - but I am sure people have figures this out.

My first issue was repaired in Singapore and I have no idea what they did. Now, 5 yrs later. It has died again.

There is an earlier comment that installing the new PS (from Mouser or Lexicon) is like putting in a new HD. I read that to mean plug and play.

Can anyone confirm that? e.g. no soldering etc.?

Thanks.

Crwilli - you're correct on both counts - my PSU failed when I had a power outage and it came back on. You'll also notice that when first powered on there's a hi frequency squeal that it puts out for probably 20-30 minutes until it warms up I assume. This may be a hint.

Second - replacement is very my like replacing a hard drive except there's a few more screws to deal with. It any even it's a piece of cake unless you're a total DIY klutz.

Yes, and Yes. Two times I have lost the PS on my MC1. Most recently two weeks ago. However, it is an easy repair you can do with a phillips head screwdriver. Go to Mouser.com and buy this. Delivered it cost $49.

826-NFS40-7610J
NFS40-7610J
40W +5.1 +15 -15 OUT
04/08/13

How does one know if it's the Power Supply or not? My MC-1 suddenly won't power on at all. No lights - nothing. Is this the symptom? Thank you.

If it's not a fuse (check that first), it's very likely the PSU. You can verify with a VOM meter if you know how. I don't recall exactly what the connections are, but you should be able to trace where the PSU power output connects to the main board and measure if you have any voltage there.