Matsui 42" Plasma Tv Spares or Repair ?

For sale is a Matsui 42" Plasma Tv which is working but has a couple of faults. Firstly the tv has two black lines running down the tv as you can see from the pictures and there is also a thin blue line running along side the black lines this is not that much noticeable as much as the black ones are. Secondly there are no speakers with the tv however you can attach any random stereo speakers to it and it will work. I have attached a dvd player speaker which works perfectly. The final thing is that the power button doesnt work although the tv can still be turned on and off from the power socket. Someone with more knowledge maybe able to repair it as i am no expert. I will accept no returns. Cash on collection only in Huddersfield.