Canberra 2015A, Руководство пользователя

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defective circuit has been located, proceed to locate the defective
component(s).
5.
Check Voltages and Waveforms. Often the defective component(s) can be
located by checking for the correct voltage or waveform in the malfunction
circuit. Logic levels and truth tables for the digital integrated circuits used in
the instrument are given in the this chapter.
Component Replacement
All replacement parts should be direct replacements unless it is known that a different
component will not adversely affect instrument performance. Many components in the
Model 2015A are standard electronic parts available locally. However, all parts can be
obtained through Canberra Industries. When ordering replacement parts from Can-
berra, include the following information.
• Instrument Model Number.
• Instrument Serial Number.
• A description of the part (if electrical, include circuit number - A2, Q3, etc.)
• Canberra part number (if available)
• Canberra schematic drawing number.
38
Circuit Description