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Troubleshooting R&S
FSP
1164.4556.82 3.84
E-1
Checking the 4-fold D/A Converter on the Detector Board.
Normal action
Error and error cause
Detector Board Pretune-DAC Test
The 4-fold D/A-converter on the detector board is
checked.
One D/A converter controls the frequency-
dependant IF gain on the IF filter for frequency
response correction. The other ones are provided
for options (microwave converter, tracking
generator).
The first output voltage of the 4-fold D/A converter
is measured, thus checking the basic function of
the control interface (in DCON gate array), also.
Channel Nominal
voltage
8
666 mV
FATAL ERROR!
Detector: Pretune DAC FAIL - check DCON and pretune DAC
Selftest aborted.
Replace the detector board
Содержание 1164.4391.03
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