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Yamaha Full-Size Keyboard - Page 6 Questions & Answers
Sustain Pedal Opposite Effect
I found that if I plug in the sustain pedal BEFORE turning the power on, it works fine. If I plug in the sustain pedal AFTER turning the power on, then it works in the opposite way. Probably just the design. So I would try playing with that before doing anything drastic.
How doI open a Yamaha P120 to fix sticky keys?
I've had the very same problem twice so far. The only solution I
figured is to simpy purchase an equivalent key (contact Yamaha service
in your country for this) and to replace the broken one. The reason why
the key doesn't work smoothly as the other one is not dirt therefore
any cleaning won't help. The key is cracked deep in the place where
it's attached to its 'axis'. So you'll need to remove all the screws
and unmount the cover (it needs a sideshift to open once the screws are
removed), be careful with the speaker wires. However you'll need firm
moves anyway. Opening is tricky and gets me surprised anytime I do it
so you'll need some courage :). Replacing the key is even more tricky.
You'll have to remove the broken one by pulling it horizontaly (use
some force, it's broken anyway). Placing a new key you'll need to
uplift the 'hammer' and then slide a new one. I'm sure you'll figure it
out once you see it with your own eyes (it's really hard to decribe but
not so hard to do it). Hope you'll do fine. I haven't tried glueing the
crack for I doubt it would work for long. Good luck!
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