Tektronix SPG8000A, User Manual

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SPG8000A User Manual 139
Main Board Voltages diagnostic readouts: These readouts display the status of the
Main board voltages. OK displays when the voltages are within the operating range;
WARN displays when a voltage is out - of - range.
Figure 48 shows the diagnostic information for the main board voltages, a subset
of the Mainframe diagnostic information.
Figure 48: Main Board Voltages diagnostic readouts
Reference Module
diagnostic readouts
Figure 49 shows the diagnostic information for the Reference Module.
Figure 49: Reference Module diagnostic readouts
These diagnostic readouts are shown for the Reference Module.
Note: If no input is applied to the Genlock circuit, then the ADC bits will be
moving and so may appear stuck. This is not an indication of a problem.
• ADC Stuck Bits : This readout is a 12 - bit display showing the bits
stuck high (H), low (L), or OK ( - ).
• ADC Short Bits : This readout is a 12 - bit display showing any shorted
adjacent lines (SS) ( - ).
•
Genlock Input : This readout displays the minimum and maximum value
from the genlock ADC for the present input signal.