I took the back off my Toshiba CE30C10 Tel...

i am sorry that happened to you, but the best way is to get a schematic and find it. you could also just take your time and look for a socket that could accept this connection in your set. if you only have one loose connection then you look for the socket that does not have any dirt inside of it. it will be this way because it was plugged in and no dirt could get inside. blowing it out might have been the way you could have found your problem.