Yamaha FS1-R Problem

[rjt]

I bought a Yamaha FS1-R years ago when they were being discontinued (got a very good price). It worked well for about a year, then started to have problems. Sometimes, when I power it up, the controls either do not work, or the display comes up "washed out" or blank. Letting it sit (powered up) does no good. Turning it off, letting it sit (sometimes for a minute or two, sometimes an hour or two) and then powering up, it usually works.... sometimes (often), it stops working mid-session.

I took it in to an authorized Yamaha repair shop (they had never seen one and had to order the manual). I thought it sounded like a battery, but they said the battery was fine. They were unable to reproduce the problem.... except for one time, when it messed up for them... They said as long as the problem was intermittent, they could not fix it.

It happens (at home) a lot more frequently now. But, it still acts (to me) like a power problem.... ie, bad battery. Anyone have any ideas? Does this sound like a battery? Heard of a similar problem? Thoughts about what to try next?

Thanks in advance

Take Care

[brzilian]

Battery problems only affect volatile memory areas, in other words, if it were a battery problem, you would only be loosing user patches, etc.

Sounds more like a loose wire connection someplace or maybe a bad chip. Possibly it could be that your power supply isn't providing the adequate voltage intermittently.

[rjt]

Good info.... bad news.

It would seem like there is not a good way of tracking that down. When it was in the shop (about 1 1/2 years ago for about 3 months) they couldn't find anything and it was only one time that it crashed for them. Hmmmmmm

Any suggestions?

Thanks for your time

Take Care