Dell E2214H Uživatelská příručka stáhnout pdf (Strana 50)

50  Troubleshooting

Missing Pixels LCD screen has spots • Cycle power on-o.

• Pixel that is permanently o is a

natural defect that can occur in

LCD technology.

For more information on Dell

Monitor Quality and Pixel Policy,

see Dell Support site at:

http://www.dell.com/support/

monitors.

Stuck-on Pixels LCD screen has bright

spots

• Cycle power on-o.

• Pixel that is permanently o is a

natural defect that can occur in

LCD technology.

For more information on Dell

Monitor Quality and Pixel Policy,

see Dell Support site at:

http://www.dell.com/support/

monitors.

Brightness Problems Picture too dim or too

bright

• Reset the monitor to Factory

Settings.

• Auto Adjust via OSD.

• Adjust brightness & contrast

controls via OSD.

Geometric Distortion Screen not centered

correctly

• Reset the monitor to Factory

Settings.

• Auto Adjust via OSD.

• Adjust brightness & contrast

controls via OSD.

NOTE: When using ‘DVI-D’, the

positioning adjustments are not

available.

Horizontal/Vertical Screen has one or • Reset the monitor to Factory

Lines more lines

Settings.

• Perform Auto Adjust via OSD.

• Adjust Phase and Pixel Clock

controls via OSD.

• Perform monitor self-test

feature check and determine if

these lines are also in self-test

mode.

• Check for bent or broken pins

in the video cable connector.

NOTE: When using ‘DVI-D’,

the Pixel Clock and Phase

adjustments are not available.

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