Cleaning keys

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Por mais1976

Master (169)

Imagen del mais1976

21-09-2011, 14:16

I got a yashica yc64 and a toshiba hx-10. The problem is, that the keys have turned yellow.

I want to try retrobright to get them all white again.

After having the look at this picture

, i realized that i've to remove all the keys, but i'm afraid, that I'll will break something.

What is the easiest way to remove keys from those keyboards?

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Por gamecast

Expert (101)

Imagen del gamecast

21-09-2011, 14:44

I do not know what kind of product you have used, but that picture of the link you see it all put on white foam plastic bodies.

For the keyboard keys, I do not know what to tell you, I'm sorry.

But I to remove the yellow plastic shells and turn it into a
new white, I used the nitro thinner, a diluent which is very strong,
and I recommend using it with gloves on hands on, because this
nitro solvent is corrosive and dangerous.

In conclusion, I removed all the yellow of the bodies of my Commodore VIC20 platic and white is back, or at least almost .....

The product that you've used, which makes the white foam, I do not know.

I hope someone will give them a hand on this forum.


Por cklayman

Champion (297)

Imagen del cklayman

21-09-2011, 15:08

I do not know anything about yc64 and toshiba hx-10. But just a week ago I was removing keys from my Yamaha YIS-503. Fortunately there is no glue inside and the keys can be taken apart quite easily. The caps can be removed simply by pulling on them. One problem though is that once you put the keys together they do not sit as tight as they did before. Again, this works for my Yamaha. I do not know anything about yashica and toshiba.

Por Sky_hawk

Champion (267)

Imagen del Sky_hawk

21-09-2011, 17:06

I've cleaned my VG8235/00 keys using glassex, the keys come off easily using a screwdriver to carefully pop them off, but in my opinion, it not worth the trouble to take them off, I just use a piece of cloth that doesn't scratch (not those micro-fiber thingies, any cloth you would use to clean a pair of glasses will do. Q-tips can be used too, but I use a small screwdriver with the cloth wrapped around it, dip it in alcohol 70% or 96%, dont use thinner or aceton, because i'll not only take off the staining, but also the letters.

Of course this is a very tedious job, but on the other hand, how ofter are you going to do this? Smile

Oh btw. the HX-10 button come off easily with a screwdriver too without damaging them, if you want to do that..

Por frits9164

Resident (64)

Imagen del frits9164

21-09-2011, 17:50

I've cleaned my MSX keyboard with "123"cleaner what nomal is used for Inside and Out side in Caravan business. Its cleans sowhat everything! And it's make plastic not rough!
And afterwards gives it a brillant shine! Maybe this helps.
Good Luck with it.

Frits 9164

Por Manuel

Ascended (15839)

Imagen del Manuel

21-09-2011, 18:40

Staining is different than yellowing, Sky_hawk and frits9164...

Anyway, usually you can take them off with a screwdriver or something. They shouldn't break, but be careful.

Por mais1976

Master (169)

Imagen del mais1976

21-09-2011, 20:07

Thanks for the tips guys. I'll try to take them off and use Retr0bright. Not a job i'm looking forward too, but the results i find on the Internet are promising. I'll post the pictures when i've finished the job.

Por Buleste

Master (158)

Imagen del Buleste

21-09-2011, 21:25

Retr0bright is a great product for cleaning yellowed plastics and it really can restore the plastic to it's original colour.
It's been a long time since I took the keys off my HX-10 but if I remember rightly they come off quite easily with a little gentle persuasion.

For those who are interested in Retr0bright here's a wiki page for it.

Por boss_msx

Champion (415)

Imagen del boss_msx

21-09-2011, 21:28

I've fixed a few HX-10 KB's. Easy enough. Just pop the keys off on 2 sides with something small and metal. Dismantel the switch. Clean the inside with alcohol and an ear-tip.

Por mais1976

Master (169)

Imagen del mais1976

26-09-2011, 11:42

First results with retr0brite. After mixing all the ingredients i decided to test it first on a white yellowd Quickshot and a couple of keys from the HX-10. The results are stunning (for me at least). This week i'll apply the retr0brite on the rest of the machine(s).

Por Manuel

Ascended (15839)

Imagen del Manuel

26-09-2011, 11:44

Thanks for the report! This will be exciting news for the Sony fans, as those have extremely yellowing keyboards...

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