My infocus x1a has a black shadow on the right side projection

The light tunnel has collapsed. Google "infocus light tunnel." You can glue it, as I did, but it tends to break again. From what I have read nobody has a good fix and the manufacturer has ignored the problem which has alienated a lot of customers. They won't even sell a replacement tunnel. Good luck!

the tunnel is offset when you get a shadow realign, don't need to buy entire engine

Check lamp power supply

check the lamp. if it has bulges, black spot, fogging, or flaking, or dust is clogging the side vent screen, replace the lamp. if the lamop is ok, check the colorwheel. if you hear a high-pitched whir, the wheel is ok. if you hear grinding or chirping or nothing at all, replace the colorwheel. if both are ok, replace the power supply. you can get parts from an infocus service center or send it to one for repair. either way, try av solutions in ny. they're really good. www.avsolutionsny.com

if you have the dp6150 (lcd projector), you have a lens or mirror out of alignment, or something obstructing the light from the inside. if you have a dlp projector (not the dp6150), the light tunnel has collapsed and needs to be replaced. you can get the part from an infocus service center (like av solutions in ny), or send it to them for repair. they're really good. www.avsolutionsny.com

Sounds like the power supply is weak if it has to run for awhile before it functions. The control board could also be the issue. Does it make any grinding or buzzing noises?

if the lamp is new, it could be the power supply (the ballast is built in to the ps). but make sure you have the right lamp. the X1 and X1a have an sp-lamp-019 and the similar X2 and X3 have an sp-lamp-018. the lamps are almost identical except for the wire configuration on the lamp plug. make sure the wires in the plug match the positions in the socket. also, when you turn it on, if you don't hear a high pitch squeal, the colorwheel is not working. and if that isn't working, the lamp won't either. also check to see if the lamp door is closing properly and hitting the switch at the top of the opening.

the light tunnel is collapsing. that's causing the yellow bluring. as for the recognition, make sure that the resolution matches what the projector can handle (max 1024x768).

This is a very common issue with the Infocus projectors. Sounds like the mirror tunnel that sits right behind the Color Wheel and concentrates the light source onto the DLP chip. This tunnel which is shaped like a small prism is very fragile and can "fall apart" over time. Some have attempted to try and remove the tunnel and repair with limited success. Otherwise you may either need to send the unit in for repair or find a dealer who can order the part for you.

Here is another who had the same issue;
http://www.fixya.com/support/t401456-infocus_x3_video_problem

check the connector of DMD module. Service all projector and reinstall.
Viren