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Re: Yamaha ycl 250 f/c and e keys

Author: clarnibass
Date: 2017-08-12 10:58

It's not clear what the issue is...

If you are talking about the F/C and E/B keys (i.e. the parts with pads on them) not closing together, meaning one of them is open when you press just the E/B key, then that is out of adjustment. This is what your last post suggests.

Your first post suggests you are talking about the distance between each of those keys (or actually the pads) to its respective tone hole. In that case yes those are not the same for the two keys. Actually they are never the same when open. This is because they need to have essentially the same distance from the holes when they are closed (excluding slight flex in the pads and mechanisms themselves), but they lever from different hinges, so the distance will change at all other positions.

This difference will get larger and larger the more open these keys are i.e. the more you move from the position where they have the same distance (closed). I'm wondering if you are just guesstimating 1mm-2mm? 2mm is much more than it would be. Even 1mm is more than it usually is.

It's possible you have some free play somewhere causing a larger difference than there should be. Either in the start of the motion, the end of the motion (if they don't close together), or both.

Post Edited (2017-08-12 11:08)

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