Prestigio Visconte, Service Manual

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2.Disassembly
Maintenance Precautions
The following precautions are a reminder. To avoid personal injury or damage to the computer while performing a re-
moval and/or replacement job, take the following precautions:
1.
Don't drop it
. Perform your repairs and/or upgrades on a stable surface. If the computer falls, the case and other
components could be damaged.
2.
Don't overheat it
. Note the proximity of any heating elements. Keep the computer out of direct sunlight.
3.
Avoid interference
. Note the proximity of any high capacity transformers, electric motors, and other strong mag-
netic fields. These can hinder proper performance and damage components and/or data. You should also monitor
the position of magnetized tools (i.e. screwdrivers).
4.
Keep it dry
. This is an electrical appliance. If water or any other liquid gets into it, the computer could be badly
damaged.
5.
Be careful with power
. Avoid accidental shocks, discharges or explosions.
• Before removing or servicing any part from the computer, turn the computer off and detach any power supplies.
• When you want to unplug the power cord or any cable/wire, be sure to disconnect it by the plug head. Do not pull on the wire.
6.
Peripherals
– Turn off and detach any peripherals.
7.
Beware of static discharge
. ICs, such as the CPU and main support chips, are vulnerable to static electricity.
Before handling any part in the computer, discharge any static electricity inside the computer. When handling a
printed circuit board, do not use gloves or other materials which allow static electricity buildup. We suggest that
you use an anti-static wrist strap instead.
8.
Beware of corrosion
. As you perform your job, avoid touching any connector leads. Even the cleanest hands pro-
duce oils which can attract corrosive elements.
9.
Keep your work environment clean
. Tobacco smoke, dust or other air-born particulate matter is often attracted
to charged surfaces, reducing performance.
10.
Keep track of the components
. When removing or replacing any part, be careful not to leave small parts, such as
screws, loose inside the computer.
Cleaning
Do not apply cleaner directly to the computer, use a soft clean cloth.
Do not use volatile (petroleum distillates) or abrasive cleaners on any part of the computer.
Power Safety
Warning
Before you undertake
any upgrade proce-
dures, make sure that
you have turned off the
power, and discon-
nected all peripherals
and cables (including
telephone lines). It is
advisable to also re-
move your battery in
order to prevent acci-
dentally turning the
machine on.
TECHNICAL SERVICE MANUAL Prestigio Visconte 125W
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