I'm using a Panasonic Phone. I used an ordinary/un authorised for it . The adaptor by fault, somehow have the output as reverse of Mains voltage (AC) so the system is not working now. I think only the transmitter is gone. I'm not sure about what inside is burnt. Please tell me the possibility of repairing this system. Also tell me what wrong could have happened. And how to check for falls inside the system.