I have a 5 year old SONY kp-53hs10 rear projection digital TV, which primarily works as 4:3 but can switch to 16:9. Yesterday it started showing a blue shade over texts and on the outlines of moving objects in the picture. However, if I switch the TV to 16:9 mode, it goes away and picture appears OK i.e. without any Blue Color. Any suggestion on what kind of fix is needed. Can I attempt to do it myself? Thanks in advance.