blue patch

[rdread]

I have a Sanyo PLC-XP45L rear projecting, using RGB cable. There is an area in the lower right corner about 18-inches wide and extending up for about half the screen that is blue if there is a color image in that area. If the area is projected with a white background the blue patch is not visible. It is visible only if a color image is in that area. I have changed lamps, cleaned etc. with no change. Does anyone have any ideas?

 

[brian4]

Hello
Have you checked the alignment of mirrors and colour filter glasses.
It sounds like the blue filter is not sitting right or maybe faded.
check them all.
Regards
Brian.