Cornerstone. NEC NP-P554U

3. Convenient Features

❺ Using 4-Point Corner to Correct Keystone Distortion

[CORNERSTONE]

Use the [CORNERSTONE] and [PINCUSHION] features to correct keystone (trapezoidal) distortion to make the top or bottom and the left or right side of the screen longer or shorter so that the projected image is rectangular.

Before performing correction

The KEYSTONE correction has features, KEYSTONE (HORIZONTAL/VERTICAL), PINCUSHION, and CORNERSTONE.

If the value of either CONERSTONE or PINCUSHION has corrected, KEYSTONE HORIZONTAL and KEYSTONE

VERTICAL are disabled. In this case, RESET the corrected values and restart to correct distortion.

Cornerstone

1. Press the KEYSTONE button with no menu displayed.

[P554W/P474W/P604X/P603X]

[P554U/P474U]

The KEYSTONE screen will be displayed.

• Press the KEYSTONE button when using the remote control.

• See page for PINCUSHION.

2. Press the ▼ button to select [CORNERSTONE] and press the ENTER button.

The drawing shows the upper left icon ( ) is selected.

The CORNERSTONE screen will be displayed.

3. Project an image so that the screen is smaller than the area of the raster.

4. Pick up any one of the corners and align the corner of the image with a corner of the screen.

Projected image

The drawing shows the upper right corner.

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3. Convenient Features

TIP: If either CORNERSTONE or PINCUSION is adjusted, the options KEYSTONE VERTICAL and KEYSTONE HORIZONTAL become unavailable.

In this case, RESET the corrected values and restart to correct distortion.

5. Use the ▲▼◀▶ button to select one icon (▲) which points in the direction you wish to move the projected image frame.

6. Press the ENTER button.

7. Use the ▲▼◀▶ button to move the projected image frame as shown on the example.

8. Press the ENTER button.

9. Use the ▲▼◀▶ button to select another icon which points in the direction.

On the Cornerstone adjustment screen, select [EXIT] or press the EXIT button on the remote control.

The confirmation screen is displayed.

10. Press the ◀ or ▶ button to highlight the [OK] and press the ENTER button.

This completes the Cornerstone correction.

Selecting [CANCEL] will return to the adjustment screen without saving changes (Step 3).

Selecting [RESET] will return to the factory default.

Selecting [UNDO] will exit without saving changes.

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