Philips PT-LB51SU manual Position menu

POSITION menu

Settings

Remote control Control panel

See “Navigating through the MENU” on page 27. See “Main menu and Sub-menu” on page 28.

REALTIME KEYSTONE

This projector detects its own degree of tilt and corrects the keystone distortion automatically.

OFF: Deactive

ON: Active

KEYSTONE

This projector detects its own degree of tilt and corrects the keystone distortion automatically (“REALTIME KEYSTONE”). However, keystone distortion may still affect the images in some cases (e.g. when the projector is tilted slightly and the tilt is corrected slowly by hand or when the screen itself is tilted). In such cases, set “REALTIME KEYSTONE” to “OFF” and correct the vertical keystone distortion manually.

Image Operation

NOTE:

•You can correct the distortion ± 30 degrees from the plane. For a better quality image, installing the projector with a minimum of distortion is recommended.

•The distortion of the Main menu screen is not correctable.

•The result of the keystone correction will affect the aspect ratio and the size of the image.

•You can correct the keystone distortion manually when “REALTIME KEYSTONE” is set to “ON”.

However, when you turn on the power, the amount of correction will be reset and “REALTIME KEYSTONE” will function again if the tilt is different from the last time you used the projector. If you correct the keystone distortion manually when “REALTIME KEYSTONE” is set to “OFF”, the amount of correction will be stored by the projector even after the power is turned off.

POSITION

(S-VIDEO/VIDEO/COMPUTER/COMPONENT signals only)

You can move the projected image for fine adjustment. Press I H to move horizontally and F G vertically.

POSITION	H
	V

DOT CLOCK

(COMPUTER signals only)

If you have interference patterns of the projected image, which is sometimes referred to as moire or noise, you can minimize it by pressing I H to adjust the clock frequency.

NOTE:

•If the projecting signal’s dot clock frequency is higher than 100 MHz, the adjustment may not make a difference.

•DOT CLOCK needs to be adjusted before adjusting the

CLOCK PHASE.

CLOCK PHASE

(COMPUTER/COMPONENT signals only)

If you require further adjustment for the same reason as the DOT CLOCK adjustment, you can fine adjust the timing of the clock. Press I H to adjust.

NOTE:

•If the projecting signal’s dot clock frequency is higher than 100 MHz, the adjustment may not make a difference.

•CLOCK PHASE is available with PC signals and the following COMPONENT connection.

ASPECT

(S-VIDEO/VIDEO/480i, 576i, 480p and 576p COMPONENT signals only)

You can switch the aspect ratio manually when needed. Press I H to cycle through the options.

4:3	AUTO
16:9		S4:3

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