Chosen Solution
There is no colour only a blueish tinge to the picture?
@evelfritz make sure that you try a different TV as well and try different inputs on your TV. This could be a bad DVD (try others) as well as a bad cable. Try others as well. If none of that works, you want to consider cleaning the laser. For that you buy a commercially available lend cleaning kit. If cleaning etc. does not help you may consider a bad laser assembly. This should help to disassemble your 3_2_1 and test it. Let us know what you get. Bose 3_2_1 Disassembly and Test Procedure