Preparation; Limits And Tolerances - Tektronix 2212 Service Manual

Preparation
Brief Procedures
The Performance Verification Procedure is divided in subsections to let you
check individual sections of the instrument, when it is not necessary to do a
complete performance check.
It is not necessary to remove the instrument cover to accomplish any subsection
in the Performance Verification Procedure, since all checks are made using
operator-accessable front-and-rear-panel controls and connectors.
The most accurate display adjustments are made with a stable, well-focused,
low-intensity display. Unless otherwise noted, adjust the INTENSITY, FOCUS
and Trigger LEVEL controls as needed to view the display.
An Equipment-Required block at the beginning of each subsection lists only the
test equipment necessary to do the checks in that subsection.
Also at the beginning of each subsection is a list of all the front-panel control
settings required to prepare the instrument for performing the first step of the
subsection. Do each of the steps within a particular subsection completely, to
ensure the correct control settings for steps that follow.
Limits
and Tolerances
Limits and tolerances given in this procedure are valid for an instrument that
is operating in an ambient temperature between +20 °C and +30 °C.
2212
Service Manual
The instrument also must have had at least a 20-minute warm-up period.
All tolerances specified are for the instrument only and do not include test-
equipment error.
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