I have a Sony KPR-53EX20 RPTV that's worked fine for me up until recently. The problem is that the red part of the image is rotated and it's very noticable. I adjusted the alignment, but this only shifts the image horizontally or vertically. I heard about the service mode from other posts, but I was unable to access it on my TV. Maybe I'm just doing it wrong. Any ideas how to fix this?