Hitachi CP-WX1100 Lens Replacement Manual - Page 3

Flange-back Adjustment (USL-801 only) (The two blinders and two protectors are not supplied with the USL-801 lens.) 1. Check the surrounding focus When an image is projected onto the screen after the USL-801 lens has Surrounding area been installed in the LCD projector, the surrounding area may be out of focus in Center relation to the center. If this happens, adjust the flange-back (FB) of the lens. The surrounding focus can be corrected by adjusting the flange- back. Caution: ■ As the flange-back has already been adjusted at the factory prior to shipping, do not adjust more than necessary. 2. Remove the lens Place the detached lens on a soft cloth or similar. Caution: ■ Be sure to turn off the LCD projector before changing the lens. ■ Return the lens shift to the center position. Refer to the user manual supplied with the LCD projector for instructions on how to return the lens shift to the center position. 3. Remove the fixing ring Using the small hexagon pin supplied with the lens, loosen the setscrew on the fixing ring and unscrew the fixing ring. Fixing ring One setscrew 4. Loosen the setscrews Using the small hexagon pin supplied with the lens, loosen the three setscrews for fixing the lens body. Three setscrews Lens body 5. Loosen the temporary fixing screw (1) Using the large hexagon pin supplied with the lens, loosen the temporary fixing screw on the underside. Caution: ■ Do not loosen the temporary fixing screw on the top until the lens is installed in the LCD projector. Temporary fixing screw (underside) Temporary fixing screw (top) *Do not loosen. 6. Install the lens Follow the procedures in Attaching the Lens and install the lens in the LCD projector. Position the LCD projector at the desired projection distance or desired projection size. 7. Insert the FB adjustment pin Insert the supplied FB adjustment pin in the FB adjustment window on the lens. Insert the narrow end of the FB adjustment pin. FB adjustment window FB adjustment window FB adjustment pin 8. Loosen the temporary fixing screw (2) Using the large hexagon pin, loosen the temporary fixing screw on the top. Temporary fixing screw (top) FB adjustment pin 9. Prepare for flange-back adjustment Project the image for adjustment from the LCD projector onto the screen. Move the FB adjustment pin slowly clockwise or counterclockwise and adjust the flangeback while checking the projected image, until the center of the image comes into focus. Counterclockwise Clockwise FB adjustment pin 10. Adjust the flange-back If the surrounding area in the near screen is in focus while the center of the image is in focus, follow the procedure below to adjust the flange-back. (1) Use the LCD projector remote control or control panel to adjust the surrounding focus in the + (plus) direction. (2) Move the FB adjustment pin slowly counterclockwise until the center comes into focus. (3) Check the surrounding focus. (4) If the surrounding area is still not in focus, repeat steps (1) through (3) above. If the surrounding area in the far screen is in focus while the center of the image is in focus, follow the procedure below to adjust the flange-back. (1) Use the LCD projector remote controller or operation panel to adjust the surrounding focus in the - (minus) direction. (2) Move the FB adjustment pin slowly clockwise until the center comes into focus. (3) Check the surrounding focus. (4) If the surrounding area is still not in focus, repeat steps (1) through (3) above. Surrounding area Center 11. Fix the flange-back adjustment (1) To fix the focus after flange-back adjustment, use the large hexagon pin to tighten the temporary fixing screw on the top. 12. Fix the flange-back adjustment (2) Remove the lens, which is fixed temporarily with the screw on the top, and place it on a soft cloth or similar. Tighten the temporary fixing screw on the underside in the same way. Temporary fixing screw (one on the top) FB adjustment pin Temporary fixing screw (underside) 13. Fix the flange-back adjustment (3) Using the small hexagon pin, tighten the three setscrews on the lens body. Lens body Three setscrews 14. Fix the flange-back adjustment (4) Mount the fixing ring on the lens and screw on. Mount the fixing ring with the threaded side facing down. Fixing ring 15. Fix the flange-back adjustment (5) Tighten the setscrew on the fixing ring. Fixing ring One setscrew 16. Install the lens Follow the procedure in Attaching the Lens to complete installation of the lens in the LCD projector. (The two blinders and two protectors are not supplied with the USL-801 lens.) QR77621A