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モニター Dell UltraScan P780のPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。Dell UltraScan P780 42 ページ。 Dell monitor
Dell UltraScan P780 にも：カスタマーサービス (2 ページ)

Press and hold the

Holding in this button for longer than 2 seconds erases all

RESET

button

data in the User Settings memory and returns the monitor

settings to the factory defaults.

All OSD Messages

A warning message may appear on the screen indicating that the monitor is out of sync.

This means that the monitor cannot synchronize with the signal that it is receiving from the

computer. Either the signal is too high or too low for the monitor to use. See

Specifications

for the Horizontal and Vertical scan ranges addressable by this monitor.

This means that the video cable may not be properly connected. Check if the video cable

is securely connected.

RESET button for more than 2 seconds.