Preface; Appendix B Video Modes - NEC VERSA 2600 Service Manual

Preface

This service and reference manual contains the technical information necessary to set up and
maintain the following NEC Versa
T
NEC Versa 2630CD
T
NEC Versa 2635CD
T
NEC Versa 2650CD
T
NEC Versa 2655CD
T
NEC Versa 2650CDT
T
NEC Versa 2655CDT.
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.
®
2600 Series models:
ix