Hi Aimef,
Sorry i cant be of more help here, but i dont have a Meteor in the collection or any other Stern for that matter.
In all honesty....1.3V is an odd voltage to have and i wouldnt really expect to see this. Are you sure that you have ground at these switches also? Im wondering if you have a short and ground is at 1.3V... if the rest of the switches are at 3.5V then you only have a signal of 2.2V to the board... its not enough for a logic voltage and so the closure wont register.
Also make sure ALL switches on the bank are closed when they should be ( use your meter)... is there a 5th switch that closes on Stern drops when all 4 are down??
If all this is OK then you need to follow the switch closure right up to the board and beyond
