Someone on here might be in to fixing old games consoles. Basically I used to love my gamegear back in the day but the LCD screen broke like a lot of them did. So I dug it out today and performed heart surgery lol and got the screen to actually work again but it's got vertical lines down it and half sometimes goes black. So how do I fix this? All soldered joints look good. I got it working with a hair dryer and hitting it. Technical I know but it sort of worked. Any ideas??