Toshiba L50db Owners Manual

							Overheating power down
If the processor's temperature reaches an unacceptably high level witheither setting, the computer will automatically shut down to prevent any
damage - in this instance all unsaved data in memory will be lost.
ProblemProcedureComputer shuts
down automatically.Leave the computer off until the it reaches room
temperature. If the computer has reached room
temperature and it still does not start, or if it starts
but shuts down quickly, contact TOSHIBA Support.
AC power
If you have trouble turning on the computer with the AC adaptor connected
you should check the status of the DC IN/Battery indicator. Please refer to the  Power Condition Descriptions  section for further information.
ProblemProcedureAC adaptor doesn’t
power the computerCheck the connections to make sure that the
power cord/adaptor is firmly connected to the
computer and a working power outlet.
Check the condition of the cord and terminals. If
the cord is frayed or damaged it should be
replaced, while if the terminals are soiled, they should be cleaned with a clean cotton cloth.
If the AC adaptor still does not power the computer, you should contact TOSHIBA Support.
Battery
If you suspect a problem with the battery, you should check the status of
the  DC IN/Battery  indicator.
ProblemProcedureBattery doesn’t
power the computerThe battery may be discharged - connect the AC
adaptor to recharge the battery.Battery doesn’t
charge when the AC
adaptor is attached.If the battery is completely discharged, it will not
begin charging immediately, in these instances you should wait a few minutes before trying again. If
the battery still does not charge, you should check
that the power outlet the AC adaptor is connected to is supplying power - this can be tested by
plugging another appliance into it.
User's Manual 6-5 
						

							ProblemProcedureBattery doesn’t
power the computer
as long as expectedIf you frequently recharge a partially charged
battery, the battery might not charge to its full
potential - in these instances you should fully discharge the battery and then attempt to charge it
again.Check the  Power saver  option under  Select a 
power plan  in the Power Options .
Real Time Clock
ProblemProcedureThe BIOS setting
and system date/
time are lost.The lasting time of the Real Time Clock (RTC) has
run out - you will need to set the date and time in
the BIOS setup utility by using the following steps:
1. Click the power icon ( 
 ) on the Start screen
and then select  Restart.
2. Hold down the  F2 key and then release this
key one second after the computer is power
on - the BIOS setup utility will load.
3. Set the date in the  System Date field.
4. Set the time in the  System Time field.
5. Press  F10 - a confirmation message will be
displayed.
6. Select  Yes - the BIOS setup utility will end
and the computer will restart.
Keyboard
Keyboard problems can be caused by the setup and configuration of the
computer - please refer to the  The Keyboard section for further information.
ProblemProcedureOutput to screen is
garbledPlease refer to your software's documentation to ensure that it is not remapping the keyboard in any
way (remapping involves changing or reassigning
the function of each key).
If you are still unable to use the keyboard, you
should contact TOSHIBA Support.
User's Manual 6-6  
						

							Internal display panelApparent computer's display panel problems may be related to the
computer's setup and configuration.ProblemProcedureNo displayPress the function keys to adjust the display
priority, and to make sure it is not set for output to
an external monitor.Markings appear on
the computer's
display panel.These marks may have come from contact with the
keyboard and Touch Pad while the display panel
has been closed. You should try to remove the marks by gently wiping the display panel with a
clean dry cloth or, if this fails, with a good quality
LCD screen cleaner. In this latter instance you
should always follow the instructions with the
screen cleaner and always ensure you let the display panel dry properly before closing it.
Hard Disk Drive
ProblemProcedureComputer does not
boot from Hard Disk
DriveCheck to see whether there is a disc in the optical
disc drive - if so remove it and try to start the
computer again.
If this has no effect, check the  Boot Priority
Options  setting within the TOSHIBA System
Settings.Slow performanceThe files on the Hard Disk Drive may be
fragmented - in this instance you should run the
disk Defragmentation utility to check the condition
of your files and the Hard Disk Drive. Please refer
to the operating system's documentation or online
Help File for further information on operating and
using the Defragmentation utility.
As a last resort you should reformat the Hard Disk
Drive and then reload the operating system and all
other files and data. If you are still unable to
resolve the problem, contact TOSHIBA Support.
Optical Disc Drive
For further information, please refer to  Operating Basics.
User's Manual
6-7 
						

							ProblemProcedureYou cannot access a
CD/DVD/Blu-ray
Disc™ in the driveMake sure the drive’s disc tray is securely closed. Press gently until it clicks into place.
Open the disc tray and make sure the disc is
properly seated. It should lie flat with the label
facing up.
A foreign object in the disc tray could block laser
light from reading the disc. Make sure there is no
obstruction. Remove any foreign object.
Check whether the disc is dirty. If it is, wipe it with
a clean cloth dipped in water or a neutral cleaner.
Memory Media Card
For further information, please refer to  Operating Basics.
ProblemProcedureMemory media card
error occursRemove the memory media card from the
computer and then reinsert it in order to ensure it is firmly connected.
If the problem persists, then you should refer to the
documentation supplied with your memory media card for further information.You cannot write to
a memory media
cardRemove the memory media card from the computer and check to ensure that it is not write protected.You cannot read a
fileCheck to ensure the required file is actually on the memory media card that is inserted into the
computer.
If you are still unable to resolve the problem,
contact TOSHIBA Support.
Pointing device
If you are using a USB mouse, you should also refer to both the  USB
mouse  section and the documentation supplied with your mouse.
Touch Pad
ProblemProcedureThe Touch Pad does
not work.Check the Device Select settings.
Click  Desktop Assist -> Control Panel ->
Hardware and Sound -> Mouse  on the desktop.
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							ProblemProcedureOn-screen pointer
does not respond to
pointing device
operationIn this instance the system might be busy - Try
moving the mouse again after waiting a short
while.Double-tapping
(Touch Pad) does
not workIn this instance, you should initially try changing
the double-click speed setting within the Mouse
Control utility.
1. To access this utility, click  Desktop Assist ->
Control Panel -> Hardware and Sound ->
Mouse  on the desktop.
2. Within the Mouse Properties window, click the Buttons  tab.
3. Set the double-click speed as required and click  OK.The on-screen
pointer moves too
fast or too slowIn this instance, you should initially try changing the speed setting within the Mouse Control utility.
1. To access this utility, click  Desktop Assist ->
Control Panel -> Hardware and Sound ->
Mouse  on the desktop.
2. Within the Mouse Properties window, click the Pointer Options  tab.
3. Set the pointer speed as required and click OK.The reaction of
Touch Pad is either
too sensitive or not
sensitive enough.Adjust the touch Sensitivity.
To access it, click  Desktop Assist -> Control 
Panel -> Hardware and Sound -> Mouse  on the
desktop.
If you are still unable to resolve the problem,
contact TOSHIBA Support.
USB mouse
ProblemProcedureOn-screen pointer
does not respond to
mouse operationIn this instance the system might be busy - Try
moving the mouse again after waiting a short
while.Remove the mouse from the computer and then
reconnect it to a free USB port in order to ensure it
is firmly attached.
User's Manual 6-9 
						

							ProblemProcedureDouble-clicking does
not workIn this instance, you should initially try changing the double-click speed setting within the Mouse
Control utility.
1. To access this utility, click  Desktop Assist ->
Control Panel -> Hardware and Sound -> Mouse  on the desktop.
2. Within the Mouse Properties window, click the Buttons  tab.
3. Set the double-click speed as required and click  OK.The on-screen
pointer moves too
fast or too slowIn this instance, you should initially try changing the speed setting within the Mouse Control utility.
1. To access this utility, click  Desktop Assist ->
Control Panel -> Hardware and Sound ->
Mouse  on the desktop.
2. Within the Mouse Properties window, click the Pointer Options  tab.
3. Set the pointer speed as required and click OK.The on-screen
pointer moves
erraticallyThe elements of the mouse responsible for
detecting movement might be dirty - please refer to the documentation supplied with the mouse forinstructions on how to clean it.
If you are still unable to resolve the problem,
contact TOSHIBA Support.
USB device
In addition to the information in this section, please also refer to thedocumentation supplied with your USB device.
ProblemProcedureUSB device does not
workRemove the USB device from the computer and
then reconnect it to a free port in order to ensure it is firmly attached.
Ensure that any required USB device drivers are
properly installed - to achieve this you should refer
to both the device documentation and the
operating system documentation.
User's Manual 6-10 
						

							Sleep and Charge function
For more information and settings, please refer to the USB Sleep and
Charge  section.
ProblemProcedureI cannot use the
Sleep and Charge
function.Sleep and Charge function may be disabled.
Enable the  Sleep and Charge  function in the
TOSHIBA System Settings.
When there is a current overflow of the external
device connected to the compatible port, USB bus
power (DC5V) supply may be stopped for safety
reasons. When this happens, disconnect an
external device if some external devices are
connected. After that, turn the power of the
computer ON/OFF to restore the function. If this
function can not be still used even if only one external device is connected, stop using the
external device because its current is over the
acceptable value of this computer.
Some external devices may not be able to use the
Sleep and Charge function. In this case, please try
one or more of the following methods.
Turn OFF the computer while external devices
are connected.
Connect external devices after turning OFF of
the computer.
If this function can not be still used, change the
setting to disable the function and stop using this
function.
The battery depletes
quickly even when I
turned OFF the
power of the
computer.If Sleep and Charge function is enabled, the computer's battery will discharge during
hibernation or when the computer is turned off.
Connect the AC adaptor to the computer or disable
the Sleep and Charge function.External devices
connected to the
compatible ports do
not work when
connected to a
compatible port.Some external devices may not work when
connected to a compatible port if the Sleep and
Charge function is enabled.
Reconnect the external device after turning the
computer ON.
If the external device still does not work, connect
device to an USB port that does not have the
Sleep and Charge function or change to disable
the Sleep and Charge function.
User's Manual 6-11 
						

							ProblemProcedureThe "USB Wakeup
function" does not
work.When Sleep and Charge function is enabled, the
"USB WakeUp" function does not work for ports
that support the Sleep and Charge function.
In that case, use an USB port that does not have
the USB Sleep and Charge function or change to
disable Sleep and Charge function.
Sound system
In addition to the information in this section, please also refer to thedocumentation supplied with your audio device.
ProblemProcedureNo sound is heardPress the function keys to increase or decrease
volume.
Check the software volume settings.
Please check to see if Mute is turned to Off Check to make sure the headphone connection is
secure.
Check within the Windows Device Manager
application to ensure the sound device is enabled
and that the device is properly working.Annoying sound is
heardIn this instance you may be experiencing feedback
from either the internal microphone or an external
microphone connected to the computer - please
refer to  Sound System and Video mode  for further
information.
Volume cannot be adjusted during Windows start up or shut down.
If you are still unable to resolve the problem,
contact TOSHIBA Support.
External monitor
Please also refer to  Operating Basics, and to the documentation supplied
with your monitor for further information.
User's Manual 6-12 
						

							ProblemProcedureMonitor does not
turn onAfter confirming that the monitor's power switch is
on, you should check the connections to make
sure that the power cord/adaptor is firmly
connected to the monitor and to a working power outlet.No displayTry adjusting the contrast and brightness controlson the external monitor.
Press the function key in order to change the
display priority and ensure that it is not set for the
internal display only.
Check to see if the external monitor is connected.
When the external monitor is set as the primary
display device in extended desktop mode, it will not
display when the computer wakes up from Sleep
Mode if the external monitor has been
disconnected while in Sleep Mode.
To keep this from happening, do not disconnect
the external monitor while the computer is in Sleep
or Hibernation Mode.
Remember to turn off the computer before
disconnecting the external monitor.
When the display panel and an external monitor
are set to clone mode and they are turned off by
the timer, the display panel or the external monitor
may not display when turned on again.
If this occurs, press the function key to re-set the
display panel and external monitor to clone mode.Display error occursCheck that the cable connecting the external
monitor to the computer is firmly attached.
If you are still unable to resolve the problem,
contact TOSHIBA Support.
LAN
ProblemProcedureCannot access LANCheck for a firm cable connection between the LAN jack and the LAN hub.
User's Manual 6-13 
						

							ProblemProcedureWake-up on LAN
does not workMake sure the AC adaptor is connected. The
Wake-up on LAN function consumes power even
when the system is off.
Check to make sure fast startup is disabled:
1. Click  Desktop Assist -> Control Panel ->
System and Security -> Power Options  on
the desktop.
2. Click  Choose what the power button does
or  Choose what closing the lid does .
3. Click  Change settings that are currently 
unavailable .
4. Clear the  Turn on fast startup  check box.
5. Click the  Save changes  button.
If problems persist, consult your LAN administrator.
Wireless LAN
ProblemProcedureCannot access
Wireless LANMake sure the computer's Wireless communication
function is on.
If problems persist, contact your LAN
administrator.
Bluetooth
ProblemProcedureCannot access
Bluetooth deviceCheck to ensure the computer's Wireless
Communication function is on.
Check to ensure the Bluetooth Manager
application is running on the computer and that
power to the external Bluetooth device is turned on.
Check to ensure that no optional Bluetooth Adaptor
is installed in the computer - the built-in Bluetooth
hardware cannot operate simultaneously with
another Bluetooth controller.
If you are still unable to resolve the problem,
contact TOSHIBA Support.
User's Manual 6-14