Does the base detach from the Yamaha CVP-601 for transportation

A computer :>D

https://www.manualslib.com/manual/374549/Yamaha-Clavinova-Cvp-307.html?page=192

https://www.google.com/search?q=Yamaha+CVP-307+read+Midi+files

...

https://www.manualslib.com/manual/196689/Yamaha-Clavinova-Cvp-83s.html

strange and annoying

any power surges noticed

could be wall plug lead
or the 240 volt internal power transformer problem

David
What is the problem you are having?
I have some info on CVP85/87 which shares the same service manual.
Let me know and I may be able to pass on some info.

Contact Yamaha customer service in your country. They may have it on their site, but if not, they would have access to one top forward to you.

There is a well documented problem that occurs with the keybed on some of these models due to a manufacturing fault. Take a look at the keys that are sticking. Is the gap on either side of the key the same ? If not then the key normally leans slightly to the left rubbing on the adjacent key causing the sluggish action. The fixing tab at the back of the key breaks causing the spring pressure to push sideways.

You can just replace the offending key but the problem will eventually return. You could replace the whole keybed but this is a very expensive fix.

Keys are around £ 15.00 each.
Replacement keybeds around £ 450.00

Visit www.beckettsmusic.co.uk

Search for VU101 via the search box.

i have a broken cvp-85a but the pedals are ok so?

how opening yamaha cvp-700

I SUSPECT that the CVP 409 will ONLY talk to the Yamaha USB floppy drive, not a hard drive or memory stick.

The internal drivers for these musical instruments do not have the "smarts" to talk to the wide variety of peripherals that PC's are able to.

I can't solve the problem, but just wanted to sympathize because I have the same problem. My pedal is broken on my Yamaha Clavinova cvp85a. It worked wonderfully for years but finally it broke.
I'd be in the market for buying a new pedal or fixing the old one. But I've not found any suggestions in any of these forums for either solution.