There are various forms of arrays. SOme have a common pin at one end, and from that common a resistor drops to each other pin. Others have individual resistors between aqdjacent pins. And then still others can have more than one indpendent groupings. It is also possible you might have a bunch of resistors in series with a tap at each junction. That last type would be useful in voltage divider trees for example.
A bunch of individual resistors can be substituted, but you do have to know what arrangement they were in.
A bunch of individual resistors can be substituted, but you do have to know what arrangement they were in.
Thank you. When I look again with your support, it makes sense that it is a common. Markings on the PCB highlight one end. I made a resistor tree. Believe me! It looks like a resistor tree. It fixed the noise but gave me one key chords instead of individual notes. I am going to try the common end end with 8 parallel tonight.
Thanks
Thanks
Wow! Thanks so much! I bought this synthesizer for a good price. It had been deemed unrepairable. I looked everwhere on the web for exact part number and found nothing. When I wired it the second way, one common and 8 resistor branches, it worked.
I have no velocity sense. This keyboard uses 3 matrixes. One for the left half of keyboard, one for the right and one for sensitivity.
I decided to check the other two resistor arrays out of curiosity and found open, 5k and 15k where all should be 15k. Thanks for the awesome tips and for sharing your knowledge
I have no velocity sense. This keyboard uses 3 matrixes. One for the left half of keyboard, one for the right and one for sensitivity.
I decided to check the other two resistor arrays out of curiosity and found open, 5k and 15k where all should be 15k. Thanks for the awesome tips and for sharing your knowledge
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