Television and Home Theater

I am reparing the above Sony TV there is a 4 inch black bar across the bottom of the screen so the picture is pushed up, I do not see any vertical adjustment controls on the circuit board. Any suggestions as to where to concentrate is appreciated.

Evil, Thanks for your responses. When I press the ON  button with the remote the green light rapidly blinks for a few minutes(more than 2) and goes off , then the TV actually turns on. Sometimes it only blinks for a few minutes and does nothing.  I am aware blinking for a minute after plugging it in is normal. This isn't the case as the tv has been plugged in for days when trying to power it on. It used to be that I had to push the reset button with a paperclip for ten seconds and release and it would blink for a minute and then I could turn it on.

Hey all, I have done a search and cant find anything to help so I am hoping one of you good people may be able to oblige

When I turn on my Panasonic Viera tv (TX-32LMD70A), usually I get the RED light flashing in the bottom left hand corner and then a picture flashes up for a mili-second before the screen goes blank again (with the RED light back again).

It usually takes a few presses ON and OFF before the picture stays.