if you take off the plate that surrounds the plug socket and look on the underside of the plug socket you will see a peice of metal with a bend at the top, push that so it lines up with the hole no the plate, this will hold the plug in for you.
fatrocky
January 2010
The socket is defective - it should grip the end of the jack plug - Relatively easy and cheap to replace but you may need a soldering iron.
Peccavi
January 2010
I can answer this question...
my jack lead just falls out of my electric guitar?