replace printed circuit board

[Montis]

Hello,
someone put accidentally wine over my Nord Stage. I cleaned everthing, also the contacts and the printed curciut board with KONTAKT LR cleaner-especially for prinited curcuit board. I'm happy that the Nord still works but 2 keys are silent and 2 keys are verry quite ore sometimes to loud (some contact Problem?).
anyone kows what to do or do I get somewhere a single PCB to replace the old one? or can I fix the contacts with something?
I'm from Germany by the way...

2014-04-30 14.13.36.jpg (1.2 MiB) Viewed 3658 times

[whitenoise]

Try this
http://www.syntaur.com/3155.html

http://www.syntaur.com/3156.html

[Montis]

@ whitenoise: no, no! this is completely different. The pcbs at syntaur are for conventional contacts, not for rubber contacts.

@ Montis:
Try to clean the board, especially the black dirt on the traces. It seems to me that this black dirt is the graphite from the rubber pads, mixed with vine.
You may try alcohol (isopropyl, ethanol) or even Video90 spray from KontaktChemie, but if it doesn't work, try aceton.
But beware of the (black) contact pads. Don't touch them with chemicals.
After cleaning, you have to prepare the rubber strip contacts with new graphite (also Kontaktchemie).
Because you're German, this posting may help also:
http://www.sequencer.de/synthesizer/vie ... 89#p201289
The difference are the pads on the pcbs, it looks the nord pcbs have also graphite pads, while the roland keys have only simple metals pads on the pcb side.

Good luck!
Bernard

[Mr_-G-]

@ Bernard: it looks like whitenoise might be right. Those seem to be the parts for the 88/EX88 Nords. Perhaps the carbon contacts are on the opposite side. Look at their catalogue.

[Bernard]

Thank you, Mr_-G-, sorry if I was wrong. You're right, they are listed for Stage 88/EX88.

However, I think cleaning the board should be easy.

Bernard

[Mr_-G-]

However, I think cleaning the board should be easy.
Bernard

Yes, of course I agree with that suggestion.

[Montis]

Cleaning is usually a good idea, but those surfaces will only take so much "cleaning" before they become too worn to function. In my experience if the slightest glint of copper is visible in any of the black ovals, forget it, but it may be that skilled application of the correct graphite formula may restore this. They're not really all that expensive to replace though...and when you're talking about reliability during performance...how much is it worth to you to avoid looking/feeling like an idiot onstage?

Replacement PCBs should be available through your national Fatar distributor, and come with rubber contact strips mounted. ALL Fatar actions used by Nord employ the same rubber contact strip / PCB design for switching.

In Deutschland sprechen mit Doepfer für diese Teile.

Bless,

Pablo