Toshiba L50c Manual

							HardwareIf you cannot find a software problem, you should
then check the setup and configuration of your
hardware. First run through the items in the
preliminary checklist as described previously
then, if you still cannot correct the problem, try to identify the source - the next section provideschecklists for individual components and
peripherals.Before using a peripheral device or application software that is not an authorized TOSHIBA part or product, make sure the device or software canbe used with your computer. Use of incompatible devices may cause injury
or may damage your computer.
If something goes wrong
Your computer does not respond to the keyboard commands
If an error occurs and the computer does not respond to your keyboard
commands, follow the steps below:
Press the power button and hold it down for five seconds. Once the
computer has turned itself off, wait between ten and fifteen seconds before
turning the power on again by pressing the power button.
Your program stops responding
If you are working with a program that suddenly freezes all operations, chances are the program has stopped responding. You can exit the failed
program without shutting down the operating system or closing other
programs.
To close a program that has stopped responding: 1. Press  CTRL, ALT , and  DEL simultaneously (once), then click  Task 
Manager . The Windows Task Manager window appears.
2. Select the program you want to close, then click  End Task. Closing
the failed program should allow you to continue working. If it does not,
continue with the next step.
3. Close the remaining programs one by one by selecting the program name, then  End Task. Closing all programs should allow you to
continue working. If it does not, power off your computer and then restart it.
The computer will not start
Make sure you attached the AC adaptor and power cord/cable properly.
If you are using the AC adaptor, check that the wall outlet is working by
plugging in another device, such as a lamp.
Verify that the computer is on by looking at the  Power indicator.
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							If the indicator is glowing, the computer is on. Also, try turning the computer
off and then on.
If you are using an AC adaptor, verify that the computer is receiving power
from the external power source by looking at the  DC IN/Battery indicator. If
the indicator is glowing, the computer is connected to a live external power
source.
The computer will not load advanced options during startup
By holding down one of the following keys during startup, your computer
will load advanced options as shown below.
KeyAdvanced optionF2BIOS utilityF12Boot menu0 (zero)Recovery options
If your computer starts to load the Operating System instead of desired
advanced options, follow the steps below:
1. In the  Settings charm, click  Power and then select  Restart.
2. Hold down the corresponding key and then release this key one second after the computer is power on.
3. Follow the on-screen instructions to proceed.
Hardware and system checklist This section discusses problems caused by your computer’s hardware or
attached peripherals. Basic problems may occur in the following areas:
Power
Keyboard
Internal display panel
Hard Disk Drive
Optical Disc Drive
Memory Media Card
Pointing Device
USB device
Additional memory module
Sound system
External monitor
LAN
Wireless LAN
Bluetooth
Power
When the computer is not plugged into an AC power outlet, the batterypack is the primary power source. However, your computer also has anumber of other power resources, including an intelligent power supply and
a Real Time Clock (RTC) battery, all of which are interrelated with any one
having the ability to produce apparent power problems.
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							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.
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							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 charge in the Real Time Clock (RTC) battery
has run out - you will need to set the date and time
in the BIOS setup application by using the
following steps:
1. In the  Settings charm, click  Power 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. Press the  ENTER key - the BIOS setup
application 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.
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							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.
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							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.
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							Touch PadProblemProcedureThe Touch Pad does
not work.Check the Device Select settings.
Click  Desktop -> Desktop Assist (in taskbar) ->
Control Panel -> Hardware and Sound -> Mouse .On-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 ->
Desktop Assist (in taskbar) -> Control  Panel -> Hardware and Sound -> Mouse .
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 ->
Desktop Assist (in taskbar) -> Control  Panel -> Hardware and Sound -> Mouse .
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 -> Desktop Assist (in 
taskbar) -> Control Panel -> Hardware and  Sound -> Mouse .
If you are still unable to resolve the problem, contact TOSHIBA Support.
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							USB mouseProblemProcedureOn-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.Double-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 ->
Desktop Assist (in taskbar) -> Control  Panel -> Hardware and Sound -> Mouse .
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 ->
Desktop Assist (in taskbar) -> Control  Panel -> Hardware and Sound -> Mouse .
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 for
instructions 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.
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							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.
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.
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							ProblemProcedureExternal 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.The "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 decreasevolume.
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.
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