HL900D

Wooyoung Telecom HL900D User Manual

Troubleshooting

DPMS Power Saving Mode

This monitor has a built-in power management system called DPMS Power Saving Mode. This system saves energy by switching your monitor into a low-power mode when it has not been used for a certain period of time. The available modes are “ON”, “Standby”, “Suspend”, and “OFF”.

State

Stanby

mode

Suspend

mode

OFF

H-sync

Active

Inactive

Active

Inactive

Signal

V-sync

Active

Inactive

RGB

Active

Blanked

Power

Consumption

Under

40Watt

Less

than

2Watt

Recovery

Time

Within

2Sec

LED Color and

Operting status

Green

Amber

What you see

Screen is blank and power indictor is off

“OUT OF RANGE” message

“NO SIGNAL” message

Image is not stable and may appear to vibrate

The image is too light or too dark

The image color is not good

Suggested Actions

Ensure that the power cord is firmly connected and the LCD monitor is on.

�Check the maximum resolution and the frequency of the

video adaptor.

�Compare these values with the data in the Display Modes

Timing Chart.

�Ensure that the signal cable is firmly connected to the PC

or video sources.

�Ensure that the PC or video sources are turned on.

�Check that the display resolution and frequency from your

PC or video board is an available mode for your monitor. On your computer check : Control Panel, Display, Settings

�Note : Your monitor supports multiscan display functions

within the following frequency domain:

�Adjust the Brightness and Contrast.

�Refer to the Brightness/Contrast

�Adjust the Color

�Refer to the Color

Image is not centered on the screen

Screen is blank and power indicator light is steady amber or blinks every 0.5 or 1 seconds

�Executes Auto Configuration.

�The monitor is using its power management system.

�Move the computer’s mouse or press a key on the key-

board.

1110

*1 : For HL900D Only.