Fluke 8508A, Руководство по обслуживанию

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Maintenance
Introduction
4
4-3
Introduction
This chapter contains access procedures for replaceable assemblies (PCAs) and error
messages assocated with the self-test procedure. All of the access procedures describe
how to remove a PCA or assembly. In all cases, unless otherwise noted, the re-
assembly/replacement procedure is a logical reversal of the removal procedure.
Access Procedures
This section of the manual includes access procedures for the following assemblies:
•
A1 DC PCA
•
A2 AC PCA
•
A3 Ohms PCA
•
A4 Digital PCA
•
A5 Bezel Assembly
•
A5A1 Display PCA
•
A6 Rear Input Assembly
Before You Start
To ensure your safety and for the protection of the Multimeter follow all of the
considerations and recommendations that follow:
1.
Unless you are qualified to service the the Multimeter do not remove the covers from
the unit.
2. To avoid shock hazards and for the protection of the unit, disconnect all power cords,
rear-panel cables, and front/rear test leads from the Multimeter.
3. Be aware that removing either or both of the cover(s) will void calibration of the
Multimeter.
4. Before removing the covers, place the Multimeter on an appropriate bench top or
work surface.
5. To avoid damage to the Multimeter from static electricity, use best practice anti-static
techniques after the covers are removed from the Multimeter.
6. Do not unnecessarily touch any part of the PCAs or straighten component positions
on the PCAs.