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INITIAL POWER ON
Before connecting the line power cords, make sure the appropriate line voltage and
line fuse have been selected for both the RF and Display sections of the analyzer. For
complete information on line voltage and fuse selection, refer to the HP 8566B Opera-
tor's Handbook. For information on line power cords for a specific country, contact the
nearest Hewlett-Packard office.
INITIAL POWER ON
After making the AC power line connections, the STANDBY lights of both the RF and Display section should be
on. As long as the instrument is operating (LINE ON) or in STANDBY, the accuracy specifications of the internal
frequency standard will be met. After a cold start, such as on-receipt of instrument, the analyzer requires 24 hours
to stabilize prior to meeting specified performance.
LINE ON AND STANDBY
Upon LINE ON, the instrument will perform an automatic internal instrument check. If one or both of the red
instrument check lights (INST CHECK I and II) remain on after this brief check routine, refer to the chart below to
localize the problem.
LED On
I
Digital Storage failure in 85662A
II
Interface Failure
Controller (A15)
Calibration
In order to meet specified frequency and amplitude accuracy, the analyzer's calibration must be checked periodi-
cally to ensure the highest performance.
2 Manual Operation
CAUTION
Problem
Solution
Check bus interconnect cable (85662-60094)
Check bus interconnect cable (85662-60094)
and check if Al2 board is connected tightly
Check if Al5 is connected tightly in 85660B
and that contacts are clean.
GENERAL INFORMATION
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