Preface - NEC Versa 6220 Service And Reference Manual

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Preface

This service and reference manual contains the technical information necessary to set up and
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maintain the NEC Versa 6220/30/60 notebook computers.
The manual also provides hardware and interface information for users who need an over-
view of the system design. The manual is written for NEC-trained customer engineers, sys-
tem analysts, service center personnel, and dealers.
The manual is organized as follows:
Section 1  Technical Information, provides an overview of the hardware and interface
components. System specifications are listed including computer dimensions, weight, envi-
ronment, safety compliance, power consumption, and system memory specifications.
Section 2  Setup and Operation, takes the authorized service technician or dealer from
unpacking to setup and operation. The section includes a description of operating controls,
setting parameters and accessing the NECCSD bulletin board system (BBS).
Section 3  Troubleshooting, lists troubleshooting procedures as well as helpful
servicing hints.
Section 4  Field Service Guidelines, provides disassembly and assembly procedures,
and an exploded-view diagram of the NEC Versa system with part numbers.
Appendix A  Connector Locations and Pin Assignments, provides a list of the main
board internal connector pin assignments and a list of external pin assignments.
Appendix B  Video Modes, lists NEC Versa supported video modes.
An Index is included for convenience.
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