Corrective Maintenance - Plantronics 1632 Manual

5.3 CORRECTIVE MAINTENANCE
It is recommended that a complete visual inspection of the unit
be made for indications of mechanical or electrical defects if
the unit is inoperative. Components showing signs of
deterioration should be checked and a thorough investigation of
the associated circuitry should be made to verify proper
operation. Damage to parts due to heat is often the result of
other less apparent troubles in the circuit. It is essential
that the cause of overheating be determined before replacing
the damaged component. Mechanical parts such as switches and
connectors should be checked for excessive wear, looseness,
misalignment, corrosion, and other signs of deterioration.
If the technician thoroughly understands the operation of the
VFCTD, malfunctions in its operation should be readily apparent
by monitoring the input versus output traffic.
5.3.1 Required Test Equipment
The test equipment or its equivalent required to test and
troubleshoot the VFCTD is listed in Table 5-l.
No special tools other than those normally contained in an
electronic technician's toolbox are required.
Table 5-l. Required Test Equipment
EQUIPMENT MANUFACTURER
Oscilloscope Tektronix 465
RMS Vo 1 tmete r
HP400FL
Message Generator Dig i tee 2002-02
Tone Keyer Frederick Electronics 1215A
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