Any ideas on what the problem might be?

Hello,

I've had a Technics SX-P26 for (I think) about the last 8 years.

It's been fine until last week when all of the c and e keys stopped playing - all other keys are fine.Any ideas on what the problem might be?

I suppose I am wondering whether this sounds like something very final with the mainboard or whether it is possible to get it fixed.