Keyboard And Mouse (With Cable); Keyboard And Mouse (Wireless); Speakers And Sound - HP 450 NG User Manual

Keyboard and mouse (with cable)

Symptom
Keyboard commands and
typing are not recognized
by the computer
Mouse (with cable) does
not work or is not detected
Cursor does not respond to
the arrow keys on the
number keypad
Cursor does not respond to
mouse movement

Keyboard and mouse (wireless)

Symptom
Wireless keyboard or
mouse does not work or is
not detected

Speakers and sound

Symptom
Volume is very low or
unsatisfactory
No sound is produced
Possible solution
Use the mouse to turn off the computer. Disconnect and reconnect the keyboard to the back of your computer, and
then restart your computer.
Disconnect and reconnect the mouse cable to your computer.
If the mouse is still not detected, turn off the computer, disconnect and reconnect the mouse cable, and then restart
the computer.
Press num lock on the keyboard to turn off numDis lock, so that the arrow keys on the number keypad can be used.
1. Press alt+tab to navigate to an open program.
2. Press ctrl+s to save your changes in the selected program
on most—not all—programs).
3. Repeat step 1 and step 2 to save changes in all open programs.
4. Press the power button to turn off the computer.
5. After the shutdown is complete, disconnect and reconnect the mouse cable to the back of your computer, and
then restart your computer.
Possible solution
Be sure that you are using the wireless keyboard or wireless mouse within range of the transceiver,
●
approximately 10 meters (32 feet) for normal use, and within 30 cm (12 inches) during initial setup or for re-
synchronization.
Be sure that the mouse is not in Suspend mode, which occurs after 20 minutes of inactivity. Click the left mouse
●
button to reactivate the mouse.
Replace the batteries in the keyboard and/or mouse.
●
Possible solution
Be sure that you connected the speakers to the audio-out (black) jack on the back of the computer. (Additional audio
jacks are used for multiple-channel speakers.) Detached nonpowered speakers (speakers without a separate power
source, such as batteries or a power cord) do not produce satisfactory sound. Replace the nonpowered speakers with
powered speakers.
1. Type control panel in the taskbar search box, and then select Control Panel. Select System and Security.
2. Under Security and Maintenance, select Troubleshoot computer problems, and then select Troubleshoot
audio playback.
Be sure that you connected powered speakers and that they are turned on.
Turn off your computer, and then disconnect and reconnect the speakers. Be sure that the speakers are connected to
an audio jack, not a microphone or headphone jack.
(ctrl+s is the keyboard shortcut for the Save command
Keyboard and mouse (with cable) 23