Have a 4 year old Sony 36XBR250 that stills plays good. I noticed the down volume button on the set no longer works but still works with the remote. I have an extended warranty & called the service center, I was told by them that they must take the tv to the shop for it. My question is I am afraid that the moving & banging of the 200+lb set my do damage to the crcuitry, tube etc. Since the set is playing great otherwise would it be better to leave it alone or repair. I was told they have to take the whole set apart to get to the buttons.