NEC NP-NC900C-A, Руководство по обслуживанию

Страница: 176 / 199

10-15
“Confidential, Do Not Duplicate without written authorization from NEC.”
SETTING & ADJUSTMENT
• Adjustment procedure
1. Moving the projector lens position to the optical center position.
2. Display the cross-hatch pattern for focus adjustment.
3. Adjust the lens focus till one or more sides of cross-hatch come into focus.
4. Loosen the locking screws (3pcs), following the indications in the example. The screws (a, b, c) to be
adjusted correspond to the out-focus sides of the image.
5. Turn the adjustment screws CW or CCW slightly till the out-of-focus sides are in forcus.
6. Readjust the lens shift position if needed. Refocus the image as in step 2 & 3 above.
Fine adjust the focus evennese as needed. as descriped in step 5.
7. When adjustment is complete, tightrn the locking screws (3pcs).
8. Adjust the image focus.
Relation between the adjustment place and adjustment screw.
V Top
(b)