HP Compaq dc7900 USDT Spezifikationen PDF herunterladen (Seite 265)

Dim characters.

Cause Solution

The brightness and contrast controls are not set properly. Adjust the monitor brightness and contrast controls.

Cables are not properly connected. Check that the graphics cable is securely connected to the

graphics card and the monitor.

Blurry video or requested resolution cannot be set.

Cause Solution

If the graphics controller was upgraded, the correct graphics

drivers may not be loaded.

Install the video drivers included in the upgrade kit.

Monitor is not capable of displaying requested resolution. Change requested resolution.

Graphics card is bad. Replace the graphics card.

The picture is broken up, rolls, jitters, or flashes.

Cause Solution

The monitor connections may be incomplete or the monitor

may be incorrectly adjusted.

1. Be sure the monitor cable is securely connected to the

computer.

2. In a two-monitor system or if another monitor is in close

proximity, be sure the monitors are not interfering with

each other’s electromagnetic field by moving them apart.

3. Fluorescent lights or fans may be too close to the monitor.

Monitor needs to be degaussed. Degauss the monitor. Refer to the documentation that came

with the monitor for instructions.

Image is not centered.

Cause Solution

Position may need adjustment. Press the monitor's Menu button to access the OSD menu.

Select ImageControl/ Horizontal Position or Vertical

Position to adjust the horizontal or vertical position of the

image.

“No Connection, Check Signal Cable” displays on screen.

Cause Solution

Monitor video cable is disconnected. Connect the video cable between the monitor and computer.

CAUTION: Ensure that the computer power is off while

connecting the video cable.

Table D-6 Solving Display Problems (continued)

Solving Display Problems 253

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HP Compaq dc7900 USDT Spezifikationen Seite 265