Safety Considerations; Which Adjustments Should Be Performed; Test Equipment; Adjustable And Factory-Selected Components - HP 8560A Service Manual

Safety Considerations

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 prevent damage to the instrument. Service and adjustments should be
performed only by qualified service personnel.
Warning
Adjustments in this section are performed with power supplied to the instrument
and protective covers removed. There are voltages at many points in the
instrument which can, if contacted, cause personal injury. Be extremely careful.
Adjustments should be performed only by trained service personnel.
Warning
Power is still applied to this instrument with the m switch in the off position.
Before removing or installing any assembly or printed circuit board, remove the
line-power cord.
Warning
Capacitors inside the instrument may still be charged, even if the instrument has
been disconnected from its source of supply.
Warning
Use a nonmetallic adjustment tool whenever possible.

Which Adjustments Should Be Performed?

Table 2-1 lists the manual adjustments that should be performed when an assembly is repaired
or changed. It is important to perform the adjustments in the order indicated to ensure that
the instrument meets its specifications.

Test Equipment

The equipment required for the manual adjustment procedures is listed in Table 1-4,
"Recommended Test Equipment ." Any equipment that satisfies the critical specifications
given in the table may be substituted for the preferred test equipment.

Adjustable and Factory-Selected Components

Table 2-2 lists the adjustable components by reference designation and name. For each
component, the table provides a description and lists the adjustment number.
Refer to Table 2-3 for a complete list of factory-selected components used in the instrument
along with their functions. Factory-selected components are identified with an asterisk on the
schematic diagrams.
2-2 Adjustment Procedures