HP pavilion md5880n ユーザーズマニュアル

Troubleshooting

61

Picture Problems

If you see a picture but it is not the 

one you expect to see

• Press Source two times and select the source you want to view.
• Label your sources so you can more easily identify them. See “Labeling the 

• If you cannot find a source connected to a composite-video input on Video 

1, 2, or 3, make sure the adjacent S-video input has no cable attached.

If a blank picture displays

• Press Source two times and select the source you want to watch.
• Be sure the external source is turned on and connected.
• For a computer connection, ensure your notebook computer’s external video 

port is turned on. Refer to the computer manual. On some notebooks, for 

example, press the Fn+F4 or Fn+F5 function keys to turn on the external video 

port.

If the image is too dim

• Try reducing the amount of ambient light shining onto the screen.
• Press the Picture button one or more times to try different color and 

brightness combinations.

• Press Settings, go to Picture > Brightness, and increase the brightness. 

However, if you increase brightness too much, you could reduce color 

quality.

• If a warning message is displayed about the lamp module, replace the lamp 

module to restore full brightness.

If the image is too small, too large, 

or stretched

• Press the Aspect button one or more times to try different stretch and zoom 

combinations.

If the colors seem slightly wrong

• See “Adjusting the Picture for Best Color” on page 50.

If the colors seem completely wrong • Verify that all cables are connected properly. Observe the color coding on 

connectors.

• Be sure the pins on the cable connectors are not bent or broken.
• Press Settings, go to Picture > Reset, press OK, and select Yes.
• Press Settings, go to Setup > Factory reset, press OK, and select Yes.

If the picture is not clear (ghost 

images, smearing, poor quality)

• Check the cable connections.
• Try a different channel or different source. The source could have poor 

picture quality.

• If the source device has more than one video output, see “Choosing Your 

• If the problem occurs for the cable input on one or more cable channels, 

press Settings and go to Setup > Channel setup > Cable system. Try the 

different settings, or ask your local cable provider if either HRC or IRC is 

used.

• For an antenna input, try adjusting the antenna.
• For a source that is connected with a component, composite, or S-video 

cable, be sure you are using a coaxial cable rated at 75 ohms. Any other 

cable or impedance rating can reduce picture quality.

• For a source connected with a video cable, the cable might need to be 

higher quality, especially if the cable is longer than about 3 m (10 ft). HP 

recommends low-loss cable for longer distances to avoid degrading or 

losing the picture.

If the picture has a black area

• If the picture has black bars at the top and bottom of the screen or at the left 

and right of the screen, the picture might have a different shape than the 

screen. This is normal for certain types of pictures and sources. If you want 

the picture to fill the entire screen, press Aspect one or more times to find the 

view you like best. If the source device has shape options, try changing them 

too. If you want the picture to fill the screen, the picture might have to be 

stretched or cut off.

• If there is a black box inside the picture, you might have a caption option 

turned on but not being used. Press Settings and go to Setup > Closed 

caption. Turn off or chang the caption options.

If several picture settings seem 

completely wrong and you cannot 

fix them

• Press Settings, go to Picture > Reset, press OK, and select Yes.
• Press Settings, go to Setup > Factory reset, press OK, and select Yes.