Final Acquisition Board Troubleshooting Steps - Keysight Infiniium 9000 Series Service Manual

ADC Test Group
• ADC Register Test - This test verifies that all of the ADC registers can be
• ADC Voltage Test Points Test - This test verifies that voltages measured from
Acquisition Memory Test Group
• MBIST - This test checks the embedded memory in each memory controller
• Register Test - This test verifies that all of the memory controller ASIC registers
Misc. Scope Test Group
• Temp Sensor Test - This test verifies that all of the temperature sensors in the
• Acq Flash RAM Test - This test checks the flash RAM located on the acquisition

Final Acquisition Board Troubleshooting Steps

• Please make sure the SATA cable is firmly plugged-in. A bad connection may
Infiniium 9000 Series Oscilloscopes Service Guide
correctly written to and read from. If the test reads any registers whose values
are not equal to what they were written to, it will report a failure for the ADC on
the associated channel.
32 test points within the ADC are within their expected range. If any test point is
found to be outside of its expected range, a failure is reported for the ADC
containing the associated test point.
ASIC for errors. If the errors can be corrected using the redundancy present in
the IC, the software will perform the necessary correction.
can be correctly written to and read from. If the test reads any registers whose
values are not equal to what they were written to, it will report a failure for the
Hedwig with the associated error.
oscilloscope are reading values within the expected range. Temperature
sensors exist for each of the memory controller ICs, each of the ADC ICs, and
each of the front end ICs. If any temperature sensor measure a temperature that
is outside of the expected operating range, a failure will be reported for the IC
associated with that temperature sensor.
board for errors. If any errors are found, a failure is reported for the particular
flash RAM that was found to be bad.
cause the instrument fan to run at very high speeds and be noisy or the screen
can appear to be dead when it is powered on, If this problem occurs, the SATA
interface needs to be reinstalled.
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Troubleshooting
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