[sdiy] Chemtronics Rubber Keypad Repair Kit, was: Roland JP-6 / juno 60 LFO trigger button

Bob Weigel sounddoctorin at imt.net
Mon May 4 20:27:12 CEST 2009

Florian and all.  I am almost ready to deliver materials...I actually 
just got in the first production today!  I just have to  install the 
contacts in another polysix and give it a good test to make sure nothing 
funny happens with the new way they are punched out (ie. the adhesive 
not holding for some reason)  But this material is AWESOME!  You can 
reface old contacts with material I'm having manufactured that has been 
fairly rigorously tested now.  Excellent conduction characteristics just 
like the original contacts.  And extremely stable materials.  Very thin 
so that it can be faced between the .015" or so gap in most contacts 
with no problem.  I'm figuring something like 40.00 per 61 key set. -Bob

Florian Anwander wrote:

> Hello
> Thanks for the hint. But finally I'd like to keep the look of the button.
> Meanwhile I found several hints to the "Chemtronics Rubber Keypad 
> Repair Kit":
> http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=CW2605-ND 
> Can anyone share his experience with it?
> Florian
> dragons schrieb:
>> Hi,
>> I had to replace a similar button on a juno 60.
>> the switch is " I think " similar to those used on the tr808 ( the 
>> start stop buttons ). I did hear that they can be cleaned if you can 
>> get them apart. ( i couldn't ).
>> Farnell components do something that fits ( but you have to carefully 
>> connect the switch tags to the pcb) but this also means using a 
>> different switch cap. this will work but looks different from the 
>> original.
>> part numbers    switch  118-0016
>> cap  152-0545
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