FAMICOM WITH STRANGE RESET/CONTROLLER INPUTS

Hi everyone, I've got this famicom which seems to work ok with video and audio (did the rca mod) but at the moment is useless cos controller doesn't work, only thing it does is resettin the machine pressing select (!). I tried with another controller but with same result.
normal reset button is not working.
the pcb seems in good shape, anyone knows where the problem could lie?

thanks

 

Check all of your connections, make sure your mod is not touching the parts it needs to touch. See if the controller is wired correctly and cleaned. You might want to replace the button pads if possible.

 

it gave me same errors even before the mod (using the rf output)

I tried to change controller, resolder pins etc. but no luck