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Maintenance
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Periodic Electrical Adjustment
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To ensure accurate measurements, check the electrical adjustment of this amplifier after each 2000 hours of
operation, or every 24 months if used infrequently. In addition, replacement of components may necessitate
adjustment of the affected circuits. Complete adjustment instructions are given in Section 2, Checks and
Adjustments, in the Service Reference manual.
Corrective Maintenance
Corrective maintenance consists of component replacement and amplifier repair. Special techniques required to
replace components in the 11A52 Two Channel Amplifier are given here.
Ordering Parts
All electrical and mechanical part replacements for the 11A52 can be obtained through your Tektronix Field
Office or representative. Before purchasing or ordering replacement parts, check the parts list for value,
tolerance, rating, and description.
NOTE
When selecting replacement parts, remember that the physical size and shape of a component may
affect its performance in the amplifier. All replacement parts should be direct replacements unless
you know that a different component will not adversely affect amplifier performance.
Some parts are manufactured or selected by Tektronix, Inc. to satisfy particular requirements, or are
manufactured for Tektronix, Inc. to our specifications. Most of the mechanical parts used in this amplifier have
been manufactured by Tektronix, Inc. To determine manufacturer of parts, refer to "Cross Index Mfr. Code
Number to Manufacturer" located at beginning of Sec.tion 5 and Section 7.
When ordering replacement parts from Tektronix, Inc., include the following information:
1.
Instrument type
2.
Instrument serial number
3.
A description of the part (if electrical, include circuit number)
4.
Tektronix part number
11A52 Extended Service Manual
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Table of Contents
Troubleshooting
