Hello guys
So, my axiom 25(midi keyboard) pots are faulty. So After trying the cleaning method i opened the keyboard, desolder the pots, measure them (10k) and order some new ones (PTV111-1415A-B103) so i thought!
https://pt.mouser.com/ProductDetail/Bourns/PTV111-1415A-B103?qs=okKRLHKnSlan/x7xrUU2XQ==
Now, it is no working properly... the range is very short on both. when assembled in the keyboard instead of the 0-127 range i get 50-80.
Need to mention that the potentiometers when mounted on the wheel only use 1/3 of the total travel
You would expect them to have a lower resistance like 5k for example but they don't even exist in these models in the catalogs and in addition to that when measure the old ones they are 10k...
Either it's their resistance curve or I'm missing something?
I used those pots because they are linear and that made some sense to me. But now i'm wondering if they are logarithm??
A didn't found any schematics on web and even opened some tickets at m-audio support but nobody replied
Can anyone with knowledge of electronics help find the pots i need for the keyboard?
By the way...beside the "b103" number which i think that are the resistance number (10k) what are the other number reference? the pots that i've bought didn't had any.
i'll leave a photo of them (the olds and original ones) and the datasheet of the ones that i've bought.
Best regards to all
So, my axiom 25(midi keyboard) pots are faulty. So After trying the cleaning method i opened the keyboard, desolder the pots, measure them (10k) and order some new ones (PTV111-1415A-B103) so i thought!
https://pt.mouser.com/ProductDetail/Bourns/PTV111-1415A-B103?qs=okKRLHKnSlan/x7xrUU2XQ==
Now, it is no working properly... the range is very short on both. when assembled in the keyboard instead of the 0-127 range i get 50-80.
Need to mention that the potentiometers when mounted on the wheel only use 1/3 of the total travel
You would expect them to have a lower resistance like 5k for example but they don't even exist in these models in the catalogs and in addition to that when measure the old ones they are 10k...
Either it's their resistance curve or I'm missing something?
I used those pots because they are linear and that made some sense to me. But now i'm wondering if they are logarithm??
A didn't found any schematics on web and even opened some tickets at m-audio support but nobody replied
Can anyone with knowledge of electronics help find the pots i need for the keyboard?
By the way...beside the "b103" number which i think that are the resistance number (10k) what are the other number reference? the pots that i've bought didn't had any.
i'll leave a photo of them (the olds and original ones) and the datasheet of the ones that i've bought.
Best regards to all
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