How do you eplace a bulb in a projector screen, and where would you purchase one?

unfortunately this suggest that either, one of the capacitors is leaking or resistor on the bulb supply... or bulb itself, in all cases will cost money to repair...

Most often color distortion is due to the bulb wearing out. Projector bulbs often fade or distort colors before they actually burn out. The other thing you can try is to reset the projector to it's factory settings, which sometimes fixes color issues. It's usually an option in the "settings" area of the menu.

i had, have the same problem i also replaced the bulb then shortly after the power went out no standby light or anything. From what i've read so far it seems like a power supply issue so i ordered two power supplys from optoma 1 for lamp 1 for the unit waiting on delivery from CA they were $ 99 each if this work i'll be one happy camper. Three years no problems it's a great machine with incredible picture using 106" screen

If its DLP projection the color wheel needs to be repaired. If its CRT projection the projection bulbs need some coolant refill.

If you take it to a shop the repair costs are around $350.00 color wheel and 150.00 for coolant on CRT's...

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You LCD optical engine is out of alignment. This will require an authorized service center to make the adjustment or even replace the unit if necessary. There are 3rd party companies that offer this service, perhaps in your own town or nearby. You may want to weight the cost of repair to purchasing a newer unit.

Sounds like bulb to me best way to check is take it to a service centere and they will use a replacement or test bulb to find out for you , it may not be your bulb it may be your ballast circuit . ... regards Vortash

replace the colorwheel.

It is using the colours to make the grey and the proportion is not correct. Do a calibration.

try setting your menu;s to adjust the picture settings

yr previous buld is it burn out or explode ?
if explode might be the tiny glass neeed to service (cleaning)
please do a tilt correction
do manually