NEC VERSA S, Руководство по обслуживанию, Страница: 68 / 100

5-2 Troubleshooting and Repair
MAINTENANCE
This subsection contains general information for cleaning and checking the system unit,
keyboard, and LCD.
The system unit, keyboard, and LCD require cleaning and checking at least once a year, and
more often if operating in a dusty environment. No other scheduled maintenance or lubrica-
tion is required.
WARNING:
Remove the battery and disconnect
the AC adapter before performing any mainte-
nance. Voltage is present inside the system even
after the power button is off.
Cleaning
Use the following procedure for cleaning the system.
1. Power off the system, unplug all power cables, and remove the battery pack.
2.
Wipe the outside of the system unit, keyboard, and LCD with a soft, clean cloth.
Remove stains with a mild detergent. Do not use solvents or strong, abrasive
cleaners on any part of the system.
3. Clean the LCD with glass cleaner, then wipe with a clean lint-free cloth.
4.
Clean the keys with a damp cloth. A small, soft-brittle brush may be used to clean
between the keys. Make sure to use a damp cloth (not wet) to prevent moisture
from seeping between the keypad and metal plate, possibly damaging the compo-
nents under the keys. If the keyboard gets wet, thoroughly dry it before operating
the system.
Routine Checks
Make the following routine checks when servicing the computer.
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Inspect all cabling. Replace any damaged cables.
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If the computer no longer saves settings (date, time), replace the battery.
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If the LCD display quality is poor, adjust the LCD contrast and brightness knobs.