Toshiba Satellite L300D-ST3503 Resource Manual page 49

49
If something goes wrong
Problems when you turn on the computer
These problems may occur when you turn on the power.
The computer will not start.
Make sure you attached the AC adaptor and power cord/cable
properly or installed a charged battery.
Press and hold the power button for at least 10 seconds.
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 on/off indicator. 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 AC power
light. If the indicator is glowing, the computer is connected to a live
external power source.
The computer starts but when you press a key nothing
happens.
Verify that the active program accepts text input. Try clicking your
mouse on an area where you can type text and try typing again.
Your computer may be in Sleep mode and have a software or
resource conflict. When this happens turning the power on returns
you to the problem instead of restarting the system. To clear the
condition, press , , and simultaneously. Then shut down the
Ctrl Alt Del
computer via software, or follow the steps if your program stops
responding (see "Problems that are easy to fix" on page 48).
Clearing the condition may get the computer running, but it will not
solve a resource conflict. Read the documentation that came with
the conflicting device and "Resolving a hardware conflict" in your
electronic user's guide.
The keyboard produces unexpected characters.
A keypad overlay may be on. If the numlock light or cursor control
mode light is on, press + to turn off the cursor control mode
Fn F10
light, or Fn + F11 to turn off the numlock light.
If the problem occurs when both the keypad overlays are off, make
sure the software you are using is not remapping the keyboard.
Refer to the software documentation and check that the program
does not assign different meanings to any of the keys.