11/12/2022 0 Comments Cant retrieve synthesia key![]() ![]() I don't know, but it's a good input, and it would surely make it much simpler to do this both now and as regular maintenance. But you first have to remove the fallboard piece (the horizontal wood piece that bears the Kawai logo) - iirc, that requires to disconnect the cables of the tweeters (which is not too difficult) and another wooden strip beneath it that is screwed horizontally over all keys and prevents them from falling out.Īll of this is doable (I know, because I did it with no ill effects), but should be done with care and forethought. It also discusses this ptfe bit, iirc.īTW, you don't need to take out the whole action to fix this. If you plan to do that, see the "GF clinic" thread I linked above. Or you can do it yourself, but then you need to source a replacement for the ptfe from somewhere. If that is the case, then it can be fixed by putting a new ptfe bit into place on the cushion.Ī technician can certainly do that. My guess is, that this adhesive has failed in some way (maybe it got warm, or just old), and the pfte film has slipped, so the capstan is now no longer moving against the ptfe bit (with low friction), but is instead moving directly against the rubber cushion, at least partially, with high friction - or even worse, is even slightly sticking to the cushion, if there is a residue of the adhesive left. In other words, it is glued to the rubber cushion below with some adhesive. The ptfe bit is like an adhesive film, like a bit of scotch tape (only ptfe). between the cushion and the metal capstan, there is a thin ptfe (teflon) film, to reduce the friction between the cushion and the capstan. What you cannot see is, that on top of that cushion, i.e. Between them you can see a thin black rubber cushion. You can see in your video the wooden part of the key at the bottom and the metal, screw-like part at the top (it's called a capstan). My guess is a problem with the Ptfe tab of the affected key. Of course once the action is accessible, then the question is, if it is possible for the layman to see or fix the problem. All quite doable as long as you proceed carefully and with forethought. At some point you may have to cut or untwist some cable ties, but that's about the worst you need to do to remove enough panels to get access to the action. Then you can remove that panel, and so on. ![]() ![]() First you remove the panel on the back, then you see which wires go to the speakers in the top panel, so you unplug those. It's really not complicated if you are a bit handy with a screwdriver. I've opened my CA97 (just out of curiosity, not because I had a problem) when I still had it without a service manual. very complete in all respects, including diagrams for disassembly. I can't speak to the content of Kawai service manuals, but I'm betting they're similar to those from Yamaha. If not I'd want to have the service manual before continuing. If the piano is in warranty I'd seek warranty service. That's an old thread, but it contains lots of good information. Now one of my daughters are starting lessons, so it sort of has to work. well, years, so I've just left it for a good while and the warranty is long gone, I think. I've tried searching for repair manuals, but either Kawai keep them close to their chest or my google skills suck. Secondly: Anyone know how to disassemble it without breaking anything so as to have a look? So, firstly: Anyone got any idea what might be wrong? I've tried "breaking them in" by playing them lots and lots, but it doesn't fix anything. I'm very meticulous about that and my children ought to be too (but you never know). I don't know if something was spilled, but I doubt it. It started out as them being slightly stuck and has progressed into them being unplayable over the course of some months (without use). The effect lasts for a couple of seconds, then they're stuck again. ![]() The keys are stuck, but the stuckiness can be temporarily broken, after which they just have higher resistance than normal. I have two stuck keys (E4, G4) on my CA-97. ![]()
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