P-121 problems

[Keys on the seas]

My 2yr old P-121 lives in a pretty harsh environment, on my boat. Recently it started to behave a bit strangely- firstly one key began only sounding if played very hard, then I started getting a very weird thing where certain combinations of notes would make an extra note play, very loudly clashing. Extremely off-putting.
I've opened it up and found signs of corrosion and dirt around the key that wouldn't sound out properly. A careful hoover and a blast of contact cleaner and that's all working again.
But the weird discordant note thing is still happening.

I can replace the middle circuit board under the keys fairly easily. Is this likely to be where the problem lies? I didn't spot any damage or corrosion anywhere else.

 

[happyrat1]

How long have you had it on the boat. High humidity and corrosive salt can destroy a keyboard in less than 5 to 6 years.

My advice is to sell it off as a fixer upper and buy something new.

This is just the beginning of your board's problems.

 

[Keys on the seas]

It's been a little over two years.
Unfortunately the only place I can set it up is right under a hatch which is usually open unless we're sailing, and although we're pretty sharp about closing it when rain threatens, it's vulnerable.

Makes me really glad I didn't buy a Nord

I only expect to be living aboard for another couple of years so it doesn't make much sense to buy a new instrument.

The only damage I could see was limited to the middle PCB under the keys, and I can a replacement for £25. But I'm wondering if the 'weird random note' problem could be caused by a fault elsewhere.

 

[happyrat1]

My advice for a life at sea is to take up a brass instrument

Sorry man, I'm fresh out of suggestions.

 

[happyrat1]

If you do manage to fix it, get a waterproof dust cover.

 

[Keys on the seas]

Yeah I do keep it under a plastic cover when not in use... and when I remember!!

I would have just brought my baby grand but, you know, space...

 

[happyrat1]

Anyway weak points in salt air.

Ribbon connectors, switches, pots, cold solder joints.

Eventually it will cost more to fix than it's worth.

Maybe one of these?