I was an authorised Sharp repairer for 19 years and developed a technique to bring these XV-Z91E DLP Projectors back to life.

** Warning do not try this at home, projectors omit serious uv and high voltages that can blind or kill, I have training and years of experience, leave this type of repair to the professionals ** 

Remove the top cover.

Remove the fan and wiring. 

Remove the main board to expose the power supply.

Remove the power supply to expose the lens unit.

Remove the lens unit.

The lens unit, this is where I perform my magic. 

The color wheel after cleaning.

Another satisfied customer.

(that line through the photo is my wall)