[sdiy] juno 106 (illogical) behaviour

[Bob Weigel]

On 2/22/2012 4:42 AM, Florian Anwander wrote:
> Am 22.02.2012 12:28, schrieb Antonio Tuzzi:
>> all the buttons are working but:
>> key 2 for the bank number and 4 for the patch number  are not working
>>
>> the keyboard is most defective part.
>> non working:
>> 12 keys octave 1
>> 12 keys octave 2
>> 10 keys octave 3
>> 7 keys octave 4
>> 3 keys octave 5
>> 0 keys octave 6  (is only the final C)
>>
>> I cannot find any "binary rule" (reading the schematics) that brings 
>> this defect
> How dirty is this 106 inside? May a drink was spilled on the 
> synth/keyboard pcb.
>
> Florian
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>
Check the contacts and see if the resistance with two probes lying side 
by side is around 700 ohm or less.  If it's a lot more then there's your 
problem.  My website covers both the cleaning/trimming possibilities 
which sometimes works, or the outright 'refacing' of the contacts with 
better than original material it appears.  The contact disks I sell on 
the site also.  sounddoctorin.com/synthtec/parts/key.htm has 'good news' 
links for keyboards that suffer this issue.

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