Service Model
8903B
loose to facilitate the iise of general-purpose equipment (usually an oscilloscope).
If
a slightly-out-of-tolerance
condition is suspected, the test can usually be run more rigorously paying greater attention to measurement
accuracy.
Troitbleshooting on the block diagram level normally utilizes User and Service Special Functions, while that
on the schematic level often utilizes Direct Control Special Functions. Direct
Control
Special Functions will
require some study
of
their operation before using them for the first time.
8-6
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