Introduction and Specifications
Introduction
1
1-3
1-1. Introduction
This Service Manual provides information on maintaining, troubleshooting, and
repairing the Fluke 78 Automotive Meter. This information includes the following:
• Specifications
• Theory of operation
• Calibration
• Performance testing and troubleshooting procedures
• Replacement parts lists
• Schematic diagrams
A meter under warranty will be promptly repaired or replaced (at Fluke’s option) and
returned at no charge. See the registration card for warranty terms. If the warranty has
expired, the meter will be repaired and returned for a fixed fee. Contact the nearest
Service Center for information and prices. A list of U.S. and International Fluke
telephone numbers is included at the end of Chapter 4 of this manual.
1-2. Organization of the Service Manual
This service manual has the following five chapters.
Chapter 1. Introduction and Specifications
Chapter 1 describes the Service Manual, explains special terminology and conventions,
and provides complete meter specifications.
Chapter 2. Theory of Operation
Chapter 2 treats the meter’s circuitry as functional blocks, with a description of each
block’s role in overall operation. A detailed circuit description is then given for each
block. These descriptions explain operation to the component level and support the
troubleshooting and repair procedures in Chapter 3.
Chapter 3. Maintenance
Chapter 3 provides maintenance information, detailed repair procedures to the
component level, and performance tests. Troubleshooting and repair procedures rely on
the Theory of Operation presented in Chapter 2 and the Schematic Diagrams in Chapter
5.
Chapter 4. List of Replaceable Parts
Chapter 4 provides parts lists and information on how and where to order parts.
Chapter 5. Schematic Diagrams
Chapter 5 provides schematic diagrams for all assemblies and a list of mnemonic
definitions to aid in identifying signal name abbreviations.
To Next Page
Loading...
