M audio key station not changing led color when moving octaves

SOURCE: EWI4000s only plays one note

Hello a_marechalro,

You can try to reset your instrument.
Turn off the EWI,
Press the LEVEL, FX, SETUP and TRANS buttons.
Then turn on the EWI.
This is a Factory reset.

I hope for You this is the solution.
Kind regards,
Fred Roubos.

Scott Frye

• 1175 Answers
• Posted on Jan 12, 2009

SOURCE: Yamaha clavinova won't play C natural in any octave

Hi ...
There are flexible cables that connect the keys to the main electronics. The connectors for those cables sometimes age poorly..
It is fixable. But dont "get taken" on a repair.
If it's just resoldering a few points,it shouldnt be more than $100.00
to fix

SOURCE: Wurlitzer organ, highest key plays note one octave too low.

If this is the kind of organ with the wire sticking out of the key that makes contact with the bus bar to create the note you will have to make sure that key is operating the same as adjacent keys. The busbars have to be clean and the contact wires have to be clean. Sometimes when cleaning the wires they will spring out of place and not make contact with the appropriate bus bars. Check that key against the rest and see what you find. Hope this helps.

SOURCE: my akai ewi 4000s kind of froze

When I play my akai 4000s with piano/keyboard i have to change to key of 'd'. Is this normal.

SOURCE: Yamaha PSR S900 keyboard failure, in touch

That is NOT touch response, but velocity sensing. Each key has two contacts and one closes before the other to facilitate measuring the key velocity. In your case, it sounds like the key you are holding down has a bad disconnect diode in the key matrix and is holding the "first contact" signal true so the next key senses max closure speed. If you are not electronically adept, you need to take it in for servicing... however first tip the thing and vibrate it as some contamination MAY be shorting a line in the key matrix. Staples and paper clips are notorious problems with keyboards when they get into the key area.

Testimonial: "Thanks, I'll try shaking the keyboard as this suggestion is more consistent with the symptoms...the failure is not permanent. It come and goes. Thanks"