NEC XT9000 user manual Ref Adj, Lens Memory, Keystone, Volume

Lens Memory

The Lens Memory function stores the adjusted values when using shift, focus* and zoom buttons on the projector cabinet or the remote control for a specific signal.

Example of usage:

When a signal with 4:3 aspect ratio and a signal with 5:4 aspect ration both need to be displayed on the 4:3 screen.

Normal Condition (for the above example)

Perform shift, focus* and zoom adjustments to the signal with 4:3 as- pect ratio first since it is the native resolution of the projector. Both sig- nals with 5:4 and 4:3 aspect ratio can be displayed, however the signal with 5:4 aspect ratio will not fit properly on the screen.

To eliminate this size change, optimum values for shift, focus* and zoom can be stored separately for the two signals. This can be done also for two signals with the same aspect ratio. Memory (storage) of these val- ues allows projected images to be optimum upon signal switching.

Follow the procedure below to accomplish this.

Lens Memory

1)	Select "Projector Options" → "Setup" → "Page 4" → "Lens Memory" and
	insert a check mark in the Lens Memory check box.
2)	Set the projector to no-signal condition or project a signal (in the above
	example a signal with 4:3 aspect ratio) and adjust shift, focus* and zoom.
3)	Select "Adjust (Source)" → "Lens Memory" → "Reference/Custom" and set

to "Reference".

4)Press "Store" to store the lens values for this signal into memory.

5)Project a different signal (in the above example, a signal that is not 4:3 aspect ratio or a signal with 4:3 aspect ratio that you wish to adjust with

different values) and adjust shift, focus* and zoom.

6) Select "Adjust (Source)" → "Lens Memory" → "Reference/Custom" and set to "Custom

7) Press "Store" to store the lens values for this signal into memory.

The difference between "Reference" and "Custom"

"Reference" is a memory with adjustment values stored for either a no- signal condition or a newly input signal. Usually a signal with 4:3 aspect ratio would be used since it is the native resolution of the projector. "Reference" is a one-time only memory location.

"Custom" is a memory for a signal that would need adjustment values stored that would be different from the values stored in the "Reference" memory. "Custom" can be stored for each individual input signal.

Note that when "Reference" is stored, all values will be overwritten since they are not adjustments that change with each signal.

In the example above, signals with 4:3 aspect ratios are recommended for "Reference", but signals having other aspect ratios can also be used.

Another method to store is to press the INFO button while holding the CTL button of the remote control.

Note that when using the remote control for storing, storage will be in "Reference" when the "Lens Memory" setting of the menu is "Refer- ence", and storage will be in "Custom" when the setting is "Custom".

Defaults such as newly input signals are "Reference".

*See "Tips on Adjusting Focus for Lens Memory Function" on page E- 46 for more information.

Switcher (available only when used with ISS-6020)

Switcher Gain

This feature adjusts the input level of the signal. This must be done to each color:R, G, and B.

Volume

This feature adjusts the volume of the audio output. Adjust the sound corresponding to the slot.

Ref Adj

Keystone

This feature corrects the keystone (trapezoidal) distortion to make the top of the screen longer or shorter to be the same as the bottom. Use the ◀ or ▶ buttons on the slide bar to correct the keystone (trap- ezoidal) distortion.

Keystone distortion
	Normal

NOTE:

1)With the projector aimed directly at the screen the maximum keystone angle that can be corrected is +/- 15 degrees.

2)When "Resolution" is set to "Native", this feature is not available, and the stored settings and adjustments are invalid.

Depending on the type of graphics being used, the picture may get blurred or keystone correction may not be possible when excessive keystone correction is used.

The idea is, the closer you are to native resolution, the better image you will see.

NOTE: The keystone feature is not available when the test pattern or the blue back is displayed.

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