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- Casio Keybpard - 2 Updates
| chuck <chuck@deja.net>: Jan 20 09:45AM -0600 >But this might turn into REAL troubleshooting, and I might find a one meg resistor open or some shit. Like the old days. >Any info you got is appreciated. Even comments unless they are, well you know. >Thanx in advance. A quick test which might help your troubleshooting is to disconnect the VT connection to the tuner. Gradually raise the voltage from 0 to 12 volts from a well regulated power supply to the VT terminal. If stations come in during this range, set a voltage for a particular station and then remove the connection to VT. If the station disappears immediately, there is leakage on the VT line: probably a varicap. If the tuner is good, the frequency won't drift for about 10 seconds. Chuck |
| "Dave Barnicoat" <dave.barnicoat@btinternet.com>: Jan 20 02:20PM Hi, does anybody have any info of repairs to the Power Supply of this receiver, Thanks |
| N_Cook <diverse@tcp.co.uk>: Jan 20 03:31PM On 20/01/2015 14:20, Dave Barnicoat wrote: > Hi, does anybody have any info of repairs to the Power Supply of this > receiver, Thanks I suspect you'll have to seach on the ps makers number on the overlay and hope. |
| jurb6006@gmail.com: Jan 19 07:50PM -0800 Not sure of the model as it is not in front of me. Anyway this is a full 88 digital piano with pressure sense, or whatever you call it that makes it play louder when you hit the keys harder. More than an electric organ with a piano voice. Might be worth fixing. Three keys do not work. I got the thing apart and can see how it is, there is a rubber thingie under the keys and a circuit board. In the begnning I was hoping for a piece broken off the key and maybe I could do something with glue and grinders. Nope, that thing underneath is defective. It has an overlay made out of the same shit as the buttons on a remote control it appears. Howeever of course there is more to it than just a simple set of contacts and a carbon inpregnated rubber pad. Bigger too. And it does not want to come off. Can't seem to get a print on it. I THINK the model is WK-200 but that is completely from memory, not my strong suit. Without a print there are no part numbers so even if the parts are available there is no way to get them. Has anyone had any luck fixing these things ? Another thing is IF I can get parts, should I just change them all ? It occurs to me now to note the three keys, are they part of a chord ? Maybe the previous owner played that chord so much he wore it out. Or maybe it just went bad from age. It the latter is the case it might be better to change them all. Really it looked like a D major but I simply was not paying attention to that at the time. I'll find out next time into it. Are there any standard parts, to some extent ? I know it's dounbbtful but I figurre I would ask anyway. Someone said that Radio Shack's keyboards are made by Casio. I wonder if it is worth a shot to approach them for parts as much as I hate to do it. Money is money. Decent digital pianos for for money, I payed $500 for mine and that is considered cheap, especially that is has the weighted keys. It feels like playing a piano. This model here does not have weighted keys but it seems to have everything else. It's probably not worth ridiculous money, but something. And they do seem to sell. What's more, this is a little like practice now. There are alot more expensive units laying around that I will eventually be into. Korgs, Rolands n shit like that. In fact they got a polysynth there. I'll try to get a picture of it, it is neat. Literally probably from about 1970. I don't now if it works, but I am the "electric dude" so if it doesn't I guess I will be on that sooner or later. |
| Mike <news@mjcoon.plus.com>: Jan 20 04:23AM -0600 On Mon, 19 Jan 2015 19:50:33 -0800, jurb6006 wrote: > ... > Has anyone had any luck fixing these things ? Not a Casio but a Yamaha. Four keys did not work (out of 61). Nothing wrong with the keys. But the electronics consisted in several PCB connected by plugged-in cables. I just gave all connectors a good clean and wiggle and all keys have worked since... Worth trying? Mike. |
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