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Checking Cables and Connections
Start by performing a careful visual inspection of the exterior of the
computer. If no LEDs are illuminated, make sure that your computer
and its peripherals are getting power and communicating with each other
properly.
To check the power cables, and connections:
1
If you have been using battery power, connect the Notebook to an
external power source and make sure that the battery has a charge.
2
If you are using the Notebook with the AC adapter, check the
power outlet, the power cord, and any power switches that may
affect your computer.
Ø
Check the wall outlet or power strip with an item that you
know is functioning properly. A lamp or radio is a convenient
item for checking the power. You may also need to check the
fuses and breakers in your electric box.
Ø
If the outlet is controlled by a wall switch, make sure that the
switch is on.
Ø
If the outlet is controlled by a dimmer switch, use a different
outlet.
Ø
If your computer is plugged into a power strip with an On/Off
switch, make sure the switch is on.
3
With the computer' s power switched off, check all cable
connections. If the computer is connected to any peripheral
devices, look for loose or disconnected cables.
If the computer is too close to a wall, a cable connection may be loose
or the cables may be crimped.
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Do not substitute cables for different devices (other than the
manufacturer recommended cables) even if they look exactly alike.
The wiring inside the cable may be different.
4
When you are certain that you have power available and all
connections are good, turn the computer on again.
96
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