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Precautions
Troubleshooting
Thermo Fisher Scientific
Chapter 6
Troubleshooting
This instrument has been designed to achieve a high level of reliability. In
the rare event of problems or failure, the troubleshooting guidelines, board-
level connection diagrams, connector pin descriptions, and testing
procedures presented in this chapter should be helpful in isolating and
identifying problems.
For additional fault location information refer to the "Preventive
Maintenance" chapter in this manual.
The service mode, described in the "Operation" chapter, includes
parameters and functions that are useful when making adjustments or
diagnosing problems.
The Technical Support Department at Thermo Fisher Scientific can also
be consulted in the event of problems. See "Service Locations" at the end of
this chapter for contact information. In any correspondence with the
factory, please note both the serial number and program number of the
instrument.
This chapter provides the following troubleshooting information:
Safety Precautions on page 6-1
●
Troubleshooting Guides on page 6-1
●
Board-Level Connection Diagrams on page 6-10
●
Connector Pin Descriptions on page 6-12
●
Service Locations on page 6-24
●
Safety
Read the safety precautions in the Preface and the "Servicing" chapter
before performing any actions listed in this chapter.
The troubleshooting guides presented in this chapter are designed to help
isolate and identify instrument problems.
Guides
Table 6–1. Troubleshooting - Power-Up Failures, Table 6–2.
Troubleshooting - Calibration Failures, and Table 6–3. Troubleshooting -
Measurement Failures provide general troubleshooting information and
Model 43i Trace Level-Enhanced Instruction Manual
6-1
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Troubleshooting
