TORMAT and selection SEEBURG 100 GOLDENJET

Hello to all,

i have an issue with the selections of my SEEBURG 100 SE GOLDENJET.
Basically the B sides - even numbers (a2 a4 a6... and so on) are not selected. The A sides work regularly.

I have tried with removing the jack and i have tried the battery method.

Do you have any other way to try and restore the selections?
Also, i could buy a new tormat but honestly i am not able to change it myself and i am not sure this will actually solve the problem.

Thank you very much for your help