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Module Problems
6 Align the connectors on the new feature module with the connectors in
the processor (see Figure 4-5).
7 Firmly press the new feature module into the processor.
8 Insert the processor back into the carrier. (For more information about
inserting the processor, see Chapter 2 of Installation.)
Module Problems
If you suspect that a module is faulty, do the following:
■
■
To identify the cause of module errors, run the module tests described
below.
To determine whether the module is faulty, replace it with a module of
the same type. If the errors cease, the problem is solved.
Module Tests
The module tests in this section identify the cause of module malfunctions.
After each module test, record any errors on the repair tag that will be
shipped with the faulty module. If the module is sent for repair, this helps
repair personnel troubleshoot the cause of the malfunction.
You should read through the following section, “Module Test Process,” before
running any module tests.
NOTE:
A module on which you run tests cannot be used for service.
Because
your
customer depends on this service, run module tests during off hours, if
possible. If you cannot, minimize
the
time required for each module’s
downtime whenever possible.
Control Unit Problems 4-33