i have a thomson tv 50DWL617 AND WHEN I TURN IT ON IT MAKES A HIGH PITCH NOISE AND THE COLOUR FLASHES GREEN AND PURPLE AND WE HAVE TO TURN IT BACK OFF, THEN IT WONT COME ON AT ALL AND THE ON SWITCH FLASHES RED AND GREEN. WE HAVE JUST PUT A NEW LAMP IN COULD IT BE A FAULTY LAMP
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