TM 11-7021-202-12
Section I. TROUBLESHOOTING
INTRODUCTION
4-6.
The processor is a complex piece of electronic equipment. Organizational maintenance
personnel perform only those troubleshooting procedures contained within this manual. If a
malfunction occurs that is not covered in this manual, or if the listed maintenance action
does not correct the trouble, the processor is removed from its mounting and replaced with
a functioning spare processor. The defective processor is then referred to higher levels of
maintenance for repair.
NOTE
This manual cannot list all malfunctions that
might occur, or all tests, inspections, and
corrective actions required. If a malfunction is
not listed, or is not resolved by the listed
corrective actions, notify the shift supervisor.
4-7.
USE OF TROUBLESHOOTING FLOWCHARTS
Locate the malfunction in the Symptom Index.
a.
Note that the troubleshooting flowcharts and procedures are indexed by
b.
malfunction/symptom.
Review the sample flowchart (fig. 4-1) to become familiar with the proper use
c.
of troubleshooting flowcharts.
4-8.
SYMPTOM INDEX
quickly locate applicable troubleshooting flowchart and/or procedures to determine the
required corrective action(s).
4-9.
TROUBLESHOOTING
a. The first step in troubleshooting the processor is to locate the symptom in the
troubleshooting Symptom Index (table 4-1).
Next, go to the applicable flowchart or procedure for that symptom.
b.
--
c. After performing the required troubleshooting and making repairs, observe that
upon--application of power to the processor that the BITE self-test is completed successfully,
ensuring that repairs have been accomplished properly.
4-3
