Wish me luck, I may be at this for a while! When I read that I couldn’t believe it. Jaja, pues no iba desencaminada: I had attempted to fix this problem a few months ago. Then the problem is that due to using the keyboard the pieces end up leaving their mark on the golden contacts. And I was right on that –there wasn’t dust.
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Fixing the keys of my Edirol PCR-M50 | Blog | supersole
It’s very time consuming: Seeing this blog has re-kindled my interest in getting it going again! I know it sounds confusing, and it won’t help that I haven’t taken a picture when I removed the bands, but I’ll try to explain: After getting a few keys back I used it some more after all it has quite a good key action and flexible MIDI controlling but more key fatalities and another brand of USB keyboard meant I retired it for a while.
I then went for the second suggestion, which implied opening the case and cleaning the internalsjust in case there was dust or something blocking the contacts. It couldn’t be worse; this time there were even more failing keys than the first time I tried to fix it, so it was either attempting this or starting a search for spares.
De todas formas muy buen trabajo y que lo disfrutes mucho. Cleaning the contacts with a rubber eraser?
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Thanks so much for this, worked like a charm! I did the same for the rest, even if not all had failed, but just in case. In a bad case I could always use the octave up and down keys –the lower octave worked perfectly! It somehow worked, but a few minutes after it stopped working again. Then tested them again, pressing with a ballpen over the rubber contacts to avoid getting accidentally electrocuted by pressing some of the metal surfaces and connections you can see in the picture.
On the Rubber bands I found that if you poke the larger rubber posts through with a lead pencil, line up the smaller ones, then take needle nose pliers and gently pull them through on the other side. It seems this particular brand and model has this defect; there are several posts and threads mentioning it, and some of them even suggest that the manufacturer would replace some piece or cover the cost of repairs, if under warranty. Took the Contact Cleaner approach.
But as I have found today after disassembling the 49 keys with its 14 screws, it’s not dust we want to remove from the contacts, but the remains of the rubber contacts.
Lo de los contactos pasa con muchos modelos de teclados. I was really hesitant to attempt this but The first suggestion I tried was the easier and also the least effective: Had the same key problem i try this solution and it worked better then i had before.
SO I decided to use aluminium tape, I had to cut it in round pieces with puncher and stick them to all the contacts in the rubberband. D keep up the good work. I spent quite a lot of time dissasembling the keyboard itself.
Only one button works now after 2 years of not using it. What’s next, drawing circuits with indian ink?
Enhorabuena por la experiencia positiva ; Yo tengo pccr cambiar un pote a mi Roland Fantom y me da una pereza terrible. It took me few hours, at least 3 hours but now my keyborad is alive again!
When I reassembled everything I found that the keys were still not working. Each of those circles has a black round piece which deals with closing edirl circuit when the key is pressed. P Tambien me pregunte si no seria un bote, pero no se donde lo podrias poner Man I have similar situation with my PCR keyborad. Now many keys have the same issue as before. Rub firmly until contacts are clean. Thanks a lot for the publication.