This manual applies to instruments with serial numbers
271GJ-, 2839J-, 294QJ-, and 312PJ-.
This manual contains information relating to the performance
verification, adjustment, and repair of the HP 4142B. The
manual consists of the following chapters and appendixes:
Chapter 1 Service Introduction
Contains the information needed before the HP 4142B
performance verifications, adjustments, and repairs.
Chapter 2 Performance Verification
Contains the HP 4142B performance verification test
procedures using the HP 4142B Performance Verification Software.
Chapter 3 Adjustments
Contains the HP 4142B adjustment procedures using the HP
4142B Performance Verification Software.
Chapter 4 Replaceable Parts
Contains the HP 4142B replaceable parts information.
Chapter 5 Disassembly Procedures
Contains the HP 4142B modules, covers, and assemblies
removal procedures; and module installation procedures.
Chapter 6 Troubleshooting
Contains information and instructions for troubleshooting
and repairing the HP 4142B. Chapter 7 Theory of Operation
Contains the theory of operation to aid in troubleshooting
the HP 4142B.
Appendix A Error Messages
Contains error meanings of the ERROR/FAILURE display and
This manual does not contain the HP 4142B specification,
options, accessories, and customer installation procedures.
Refer to the Operation Manual for more detailed information
on these topics.