I've got backup and backups for my backups.

But, seldom carry them to jobs, unless I am playing out of town. Most problems I have experienced, like worn out contact strips, show up gradually.

Here in Florida, during spring and parts of summer, we have little, itty-bitty bugs called "No See-ums". And, really, you can't see them, but the little buggers bite. They are so small they fly right through screens.

While playing in a screened in patio at a pool party years ago, I was playing a double set up with a PSR 5700 and Roland E20. The PSR suddenly quit. All the lights were on...but no sound. I limped thru the night on the E20...but those old E20 styles drove me nuts.

When I got home I opened the 5700 and there were literally thousands, maybe tens of thousands of No See-ums in the casing which apparantly shorted out the wiring. It looked like a large accumulation of dust..but it was definately No See-ums. And they were all deceased.

A good once over with the vacuum cleaner and all was well again.

Plugging the 5700 into circuits that were used for coffee pots, refrigeration, etc also used to knock out the KB. A USP with battery back-up solved that.

None of the above has been a problem with my PSR 2000, 740 or 9000. (knock on wood.)

Eddie