NEC NC1600C Service Manual page 205

ADJUSTMENTS AND INSPECTIONS ATTRIBUTABLE TO THE REPLECEMENT OF ELECTRICAL AND OPTICAL PARTS
5. Adjustment of lens, zero position (calibration), and shift range
1) Select "Cross Hatch" of the TEST Pattern.
2) Using "Lens Shift", adjust the center of the projector screen to the center position of the screen.
3) Write this point with the use of appropriative software. (Press the [Calibration Center] button.)
4) Move the lens to the top left position (0.13H/351mm, 0.34V/484mm).
Write this point with the use of appropriative software. (Press the [Calibration Left Upper] button.)
5) Move the lens to the bottom right position (-0.13H/351mm, -0.34V/484mm).
Write this point with the use of appropriative software. (Press the [Calibration Right Lower] button.)
6) Write the above-mentioned three points in the EEPROM. (Press the [Write Calibration Value] button.)
7) Turn the projector power OFF and save the written values.
8) Confirm the registered data.
• Turn the power ON.
• Display "Cross Hatch" of the TEST Pattern.
• Using "Lens Shift" (top, bottom, right, and left), try to move the projected image to an arbitrary position.
Execute "Lens Center" and confirm that the image center is returned to the screen center.
[MENU] → [Configuration] → [Installation] → [Lens Center]
"Confidential, Do Not Duplicate without written authorization from NEC."
Screen
Registered position of the lens center
Arbitrary position after movement
Screen
Registered position of the lens center
Arbitrary position after movement
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