Section 4 Field Service Guidelines; Preventive Maintenance - NEC VERSA 2600 Service Manual

Section 4
Field Service Guidelines
This section contains preventive and corrective maintenance procedures for the following
NEC Versa 2600 Series models:
T
NEC Versa 2630CD
T
NEC Versa 2635CD
T
NEC Versa 2650CD
T
NEC Versa 2655CD
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NEC Versa 2650CDT
T
NEC Versa 2655CDT.
Section 4 is broken into four sections, which are presented in the following order:
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"Preventive Maintenance" describes cleaning procedures and preferred handling
procedures for sensitive components (for example disk drives, batteries).
T
"Disassembly and Assembly" identifies all field replaceable parts with the re-
mainder of the section containing the removal and replacement procedures for the
field replaceable parts.
T
"Illustrated Parts Breakdown" contains an exploded view diagram and a listing of
field replaceable parts with part numbers.
T
"Service and Product Information" lists NEC service and information telephone
numbers.

PREVENTIVE MAINTENANCE

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