Adjustments; Introduction; Safety Considerations; Equipment Required - HP 83522A Service Notes

Model 83522A
SECTION V
ADJUSTMENTS
5-1. INTRODUCTION
Adjustments
NOTE
5-2. This section provides adjustment proce-
dures for the Model 83522A RF Plug-in. These
procedures should not be performed as routine
maintenance but should be used (1) after
replacement of a part or component, or (2) when
performance tests show that the specifications of
Table 1-1 cannot be met. Table
5-
1 lists all of the
adjustments by reference designation, adjust-
ment name, adjustment paragraph, and descrip-
tion. Each procedure includes a test setup
illustration and one or more adjustment
location illustrations.
NOTE
Allow the 83522A RF Plug-in and the
8350A Sweep Oscillator to warm up for 3 0
minutes prior to making any adjustments.
5-3. SAFETY CONSIDERATIONS
5-4. Although this instrument has been
designed in accordance with international safety
standards, this manual contains information,
cautions, and warnings which must be followed
to ensure safe operation and to retain the
instrument in safe condition. Service and
adjustments should be performed only by a
skilled person who is aware of the hazard
involved.
Adjustments in this section are performed
with power supplied to the instrument
while protective covers are removed. There
are voltages at points in the instrument
which can, if contacted, cause personal
injury. Be extremely careful. Adjustments
should be performed only by a skilled
person who is aware of the hazard
involved.
Capacitors inside the instrument may still
be charged, even if the instrument has
been disconnected from its source of
supply.
Use a non-metalic adjustment tool when-
ever possible.
5-5. EQUIPMENT REQUIRED
5-6. Table 1-4 lists the equipment required for
the adjustment procedures. If the test equipment
recommended is not available, other equipment
may be used if its performance meets the critical
specifications listed in Table 1-4. The specified
equipment required for each adjustment is
referenced in each procedure.
5-7. FACTORY-SELECTED COMPONENTS
5-8. Table 5-2 contains a list of factory-selected
components that include the reference designa-
tion, the related adjustment procedure, the
allowable range of values, and the basis of
selection. Nominal values are given for the
factory-selected components, designated by an
asterisk
(*),
on the schematic diagram and in the
replacement parts list. HP Part Numbers for
selected values are given in Table 5-3.
5-9. RELATED ADJUSTMENTS
5-10. Interactive adjustments are noted in the
adjustment procedures. Table 5-4 indicates by
paragraph numbers the adjustments that must
be performed if an assembly has been repaired
or replaced or if an adjustment has been made
to an assembly. Table 5-5 lists the adjustment
procedures included in this section.
5-1 1. ADJUSTMENT PROCEDURE
5-12. Adjustment procedures are given in the
proper sequence to allow for interrelated adjust-
ments. However, adjustments having to do with
the leveling loop (paragraph 5-20 through 5-23)
are interactive and should be performed as a
group.
5-1