How to mend Sony Projection Tv

I show a dark spot when I have a blue screen?

Multimedia Projector?

eiki projector?

Infocus 777 comes on wont project light?

Projector bulbs?

replacement bulbs in plc-sw20 projector are not working?

how can I fix my projector?

How do I fix my SONY color reaqr video projector, KP-53S70?

is it worth fixing or buying a new tele?

Qualcast performance power mower?

my over head light bulb burn out?

Hitachi cp-x430 projector picture is dim/faded?

help in finding used projector lamps for cheap?

lost power?

Panasonic password reset?

is about a overhead projector?

Explain fixing damaged or broken tapes?

projector has green spots?

What would cause bulbs not to work?

error in auto iris appear on my epson EX30 projector screen?

Projector Panasonic PT-AX100 power supply fix?

how can i fix temperature erro on my projector NEC LT150Z??

philips 60 inch projector tv?

reset lamp hours?

sony wega lcd projector tv kf-42sx300u?

Dell MD115HD projector?

Infocus 2102 projects green color?

barco graphics?

i replaced the bulb followed step by step and still nothing happens any?

How can i fix my Hitachi CP-SR55 Projector?