FAQ and troubleshooting
61
2. Right-click the hard disk's icon and select
Properties
.
3. Click the
Tools
tab and then the
Defragment Now
button.
4. Click the
Defragment Now
button. It may take a long
time to complete.
If
Disk Defragmenter
start itself over and over, it means that
some hidden background software program is still accessing the
hard disk. Restart your Joybook and try again.
USB devices quit working unexpectedly in Windows 7. Why?
This is because USB devices, such as cameras, scanners, or
printers, lose its connection and stop working unexpectedly.
Please follow the steps below to resolve the problem:
1. Click
Start
.
2. Right-click
Computer
and select
Properties
>
Device
Manager
.
3. Double-click the
Universal Serial Bus controllers
branch
to expand it.
4. Right-click
USB Root Hub
, and then click
Properties
.
5. Click
Power Management
.
6. Deselect
Allow the computer to turn off this device to
save power
.
7. Repeat Step 4 to Step 6 for each USB Root hub.
8. Click
OK
, and then close
Device Manager
.
Why does the keyboard and/or palm rest get warm?
Typically, the Joybook tends to be warm slightly. The location of
the hard disk is typically underneath the palm rest and as a
result, the palm rest gets warm. The location of the processor is
typically underneath the keyboard. And since the heat rises, the
keyboard may get warm slightly. Since your Joybook has a
thermally controlled fan, when the CPU and/or internal
temperature of the Joybook reaches a certain temperature level,
the fan is turned ON and stays ON until the temperature drops
to a pre-defined level.
There is no sound coming from the speakers.
Verify the following:
• The speakers may have been muted. Check the volume control
(speaker icon) in the notification area located in the lower
right corner of the desktop to see if the volume has been
muted. If so, please restore the volume.
• The speakers may have been turned off. Use the <Fn> + <F7>
hotkey combination to turn them on.
• The volume may have been set too low. Use the <Fn> + <F9>
hotkey combination to increase the volume.
• An earphone or external speakers may have been connected to
the audio output jack, turning off the Joybook's built-in
speakers automatically.
JB_R48_UM EN.book Page 61 Tuesday, April 13, 2010 5:47 PM
