Service manual

Preface
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0Preface
This manual contains service information for the Hewlett-Packard M1770A pageWriter
300pi, PageWriter 200i, M1771A PageWriter 200, and M1772A PageWriter 100
cardiographs. The information and procedures in this manual apply to all models unless
otherwise specified.
This manual is organized as follows:
• Chapter 1 — Introduction. Contains a general description of the cardiographs, lists of
technical specifications, and lists of accessories and options.
• Chapter 2 — Performance Verification and Maintenance. Explains how to check the
cardiograph’s performance using built-in self-tests, and lists maintenance procedures and
safety requirements that apply to the cardiograph.
• Chapter 3 — Theory of Operation. Provides an overview of how the cardiograph
works and describes the operation of the major subassemblies.
• Chapter 4 — Troubleshooting. Contains procedures and error codes to aid the service
person in localizing faults to a replaceable subassembly.
• Chapter 5 — Removal and Replacement. Contains procedures for removing and
replacing each of the cardiograph’s major subassemblies.
• Chapter 6 — Parts List. Lists part numbers for the cardiograph’s replaceable parts, and
provides assembly drawings.
• Appendix A — Connector Pin Assignments. Identifies and defines the signals
assigned to the subassembly interconnections.
• Index.