Problem

Solution

 

 

The computer (or part of it) doesn’t seem to

It’s possible that a voltage spike, power outage, or brownout has occurred.

be working. (continued)

Symptoms of voltage spikes include a flickering video display, unexpected computer

 

startups, and the computer not responding to your commands. A voltage spike can

 

occasionally corrupt or destroy files, so it is a good idea to consistently make

 

backup copies of your data files. Prevent voltage spikes by installing a surge

 

suppressor made for use with computers between the power outlet and the computer

 

power cord.

 

 

The computer doesn’t make any sound.

Press the Mute button on the keyboard to see if the Mute feature is turned on.

 

Use the keyboard controls to increase the volume.

 

Click the Volume icon on the taskbar. Increase the volume, and make sure the

 

Mute box is not checked.

 

If your speakers have a power button, check whether it is turned on and whether the

 

power supply is connected to the power source.

 

Check the speaker connections.

 

Remove the headphone connection.

When I push one of the special or multimedia buttons on the keyboard, nothing happens.

Check the button configuration. To configure the button:

1Click Start on the taskbar.

2Click Control Panel.

3Click Printers and Other Hardware, if it is present.

4Double-click Keyboard.

(continued)

Troubleshooting

61

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HP m280n, m270n Problem Solution Computer or part of it doesn’t seem to, Be working, Computer doesn’t make any sound

884, 894c, m200y (D7219Q), 896c, m280n specifications

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