Sony 32" xbr trinitron trusurround T V picture is black

Most likely on a trinitron tube if it is dark is the high voltage capacitor has blown. This is the device that feed the 30,000 or so volts to charge the tube, it attaches at the back with a clip and ****** and a single cable coming from it.

You can check easily if it is definately that as you will notice if you power the tv on and off once or twice if you get that static charge feel from the screen, if there is none there then almost certainly that is the problem.