Hi I have a minolta

Question

Hi I have a minolta dimage A1, which has been working fine, but when I know turn it on, the screen, same through the view finder, just flickers, with no image shown, then white bars flicker on and off on the screen. This then clears after a while but the image is like a sorta washed out image, you can see a image but it is purple in colour and although you can pick out shapes you can't actually see anything???