Cleaning The Notebook Exterior; Cleaning The Notebook Interior - NEC SX Service And Reference Manual

Preventive Maintenance
Preventive maintenance is limited to cleaning the plastic case, the keyboard, the
display screen, and the diskette drive heads, as required.
adapter before performing any maintenance. Voltage is
present inside the system unit and LCD even after the
system is turned off.

Cleaning the Notebook Exterior

Use the steps below to clean the outer surface of the system.
1. Power off the system and remove all battery packs. Unplug all cables
connected to the system.
2. Wipe the outside of the system, keyboard, and display with a soft, clean
cloth. Remove stains with a damp, almost dry cloth. Use damp cloth or
alcohol wipe to clean the LCD. Do not use solvents or strong, abrasive
cleaners on any part of the system.
3. Clean the keys with a damp cloth. A small, soft-bristle 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 keyboard and the metal plate, possibly
damaging the components under the keys. If the keyboard gets wet,
thoroughly dry it before reassembling the system unit.

Cleaning the Notebook Interior

When servicing the inside of the notebook, remove dust and other foreign
particles from inside the system unit as follows:
1. Remove the top cover and keyboard using the disassembly procedures
discussed in the Chapter 3, Disassembly and Reassembly.
2. Dust or vacuum (with a rubber-tipped nozzle) the inside of the system,
particularly the motherboard surface. Use care to avoid damaging or
dislodging any components or cables.
3. Inspect all cable connectors for damage. Ensure that connectors are seated
properly before replacing the cover.
6-2 Preventive Maintenance
Note:
Remove the battery and disconnect the AC