Chapter 5 233
Post-Repair Procedures
Before You Start
Before You Start
There are three things you should do before starting any of the
procedures listed or described in this chapter:
❏ Check that you are familiar with the safety symbols marked on the
UUT, and read the general safety considerations and the symbol
definitions given in the front of this service guide.
❏ Check that the UUT has been turned on and allowed to warm as
described in the instrument specifications (or the software).
❏ Read the rest of this section.
Abnormal Indications during Procedure Execution
If the indications received during a procedure execution do not agree
with the normal conditions given in the procedure, a fault exists in your
instrument. The fault should be repaired before proceeding with any
further procedures. Refer to the troubleshooting and repair information
in Chapter 1 of this guide.
After Assembly Replacement
If one or more instrument assemblies has been replaced, related
adjustment or configuration procedures must be performed prior to
verifying that the instrument meets specifications. Refer to Table 5-1 to
determine which procedures to perform after replacing an assembly.
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