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Obtaining
Replacement Parts
Preventive
Maintenance and
Calibration
TM 502A Instruction Manual
Electrical and mechanical parts can be obtained through your local Tektronix
field office or representative. However, it may be possible to obtain many of
the standard electronic components from a local commercial source. Before
purchasing or ordering a part from a source other than Tektronix, Inc., check
the Replaceable Electrical Parts List for the proper value, rating, tolerance,
and description .
NOTE
When selecting replacement parts, remember that the physical size
and shape of
a component may affect its performance in the instru-
ment.
Some parts are manufactured or selected by Tektronix, Inc., to satisfy partic-
ular requirements or are manufactured for Tektronix, Inc., to our specifica-
tions. Most of the mechanical parts used in this instrument have been
manufactured by Tektronix. To determine the manufacturer, refer to the
Replaceable Parts List and the Cross Reference index, Mfr. Code Number to
Manufacturer .
When ordering replacement parts from Tektronix, include the following
information:
1. Instrument type and option number.
2. Instrument serial number .
3. A description of the part (if electrical, include complete circuit number) .
4. Tektronix part number .
The TM 502A power module does not require preventive maintenance or
calibration.
WARNING I
Dangerous voltages exist at several points throughout the power
module.
If you must operate the power module with the covers
removed, do not touch exposed connections or components.
Some transistors have voltages present on their cases. Disconnect
power before removing the cabinet and cleaning or replacing parts .
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