R&S FSP Troubleshooting
1164.4556.82 3.89 E-1
Normal action Error and error cause
If the level adheres to the tolerance, a defective
CAL_Amp may have caused the error. The setting
ranges of the CAL_Amps are tested during the
selftest, later.
The selftest passes under service level 1.
Note, whether the result file contains any error
messages concerning the CAL_Amps. If no
CAL_Amp error occurred, the CAL_Amps will
be set incorrectly. The EEPROM data in the
frontend are obviously incorrect (cf.
troubleshooting instructions for the frontend)
LC Filter I and XTAL Filter
Selftest Detector B (see block diagram)
The level measurement is performed with wide
and narrow bandwidths of the LC filter.
Subsequently, it is additionally measured via the
crystal filter. If the LC filter does not work properly,
the measurement of the crystal filter is not
performed.
ERROR!
IF Board: LC Filter-1/2 wide
XTAL Filter not tested
ERROR!
IF Board: LC Filter-1/2 narrow
XTAL Filter not tested
ERROR!
IF Board: XTAL Filter
The IF filter board must be replaced in all
cases.
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