Troubleshooting
Table 3-11: ADC board diagnostic error messages (cont.)
Test Error message Recommended action
ADC board Dither
Test
Dither amplitude test - Failed
Dither frequency test - Failed
Send the instrument to a Tektronix Service Center for repair.
ADC Over range. Signal too strong. Run signal path test. If the signal path test passes
and this test fails, send the instrument to a Tektronix Service Center
for repair.
Signal below -50 dBm. Verify that the IF cable from the RF deck to the ADC board IF
connector is firmly connected. Repeat the test, if the problem
persists, send the instrument to a Tektronix Service Center for repair.
ADC board
Narrow Band CW
Acquisition Test
No signal found in acquired
spectrum.
Verify Normalization source is functional by running the S ignal Path
test. If that test passes and this test still fails, send the instrument to
a Tektronix Service Center for repair.
ADC Overrange Signal too strong. Run signal path test. If the signal path test passes
and this test fails, send the instrument to a Tektronix Service Center
for repair.
Signal below -50 dBm. Verify that the IF cable from the RF deck to the ADC board IF
connector is firmly connected. Repeat the test, if the problem
persists, send the instrument to a Tektronix Service Center for repair.
ADC board LF
Acquisition Test
No signal found in acquired
spectrum.
Verify Normalization source is functional by running the S ignal Path
test. If that test passes and this test still fails, send the instrument to
a Tektronix Service Center for repair.
ADC Overrange Signal too strong. Run signal path test. If the signal path test passes
and this test fails, send the instrument to a Tektronix Service Center
for repair.
Signal below -50 dBm. Verify that the IF cable from the RF deck to the ADC board IF
connector is firmly connected. Repeat the test, if the problem
persists, send the instrument to a Tektronix Service Center for repair.
ADC board WB IF
Acquisition Tes
No signal found in acquired
spectrum.
Verify Normalization source is functional by running the S ignal Path
test. If that test passes and this test still fails, send the instrument to
a Tektronix Service Center for repair.
T
able 3-12: DPSA board diagnostic error messages
T
est
E
rror message
R
ecommended action
DPSA ID
Verification
DPSA Board ID Verification Failed. If ID was not found or a board other than the D PSA Board was found,
Version/ID is nonfunctional. Replace the RTT/DPSA Board.
Bad DPSA FPGA file path. The file
was not found in the directory.
Reinstall the product software.
DPSA FPGA Load Failed. Replace the RTT/DPSA board. If the problem persists, send the
instrument to a Tektronix Service Center for repair.
DPSA FPGA Load
Test
DCM Not locked. Replace the RTT/DPSA board. If the problem persists, send the
instrument to a Tektronix Service Center for repair.
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