Very muffled sound on Korg M3

[jwisener]

Hi there,

Am having an issue with a Korg M3. Have had the keyboard for a year now with no problems (bought 2nd hand), but the sound yesterday evening suddenly became very muffled. This was the case regardless of what output it is playing out of. I bought a new midi cable today thinking this may be the problem but it didn't make a difference. I then linked the brain of the M3 to a midi controller, and the sound was still muffled. This has led me to assume the problem is with the brain itself?

Any help really would be much appreciated! Am at a loss as to what it could be

Lisa

[Bobcat22]

What was the outcome of the problem, I have the similar problem.