Adjustment procedure reguired when the lamp has been replaced and you can see ununifomity. (Case of Right and Left have ununifomity on the screen) (1) Let the lamp light up. (2) Receive the white pattern signal at 100%. (3) Loosen the lock screws of the lamp duct. (4) Looking at the white image on the screen, turn the lamp duct until the uniformity comes to best point on the screen. (5) Tighten the lock screws of the lamp duct. (Tighten torque is 10±2kg·cm)