Teledyne MODEL T703 Manual Do Utilizador

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Teledyne API T703 Calibrator Operation Manual 
General Troubleshooting & Repair 
  
195 
11.1.3. USING THE DIAGNOSTIC SIGNAL I/O FUNCTION 
The Signal I/O parameters found under the DIAG Menu combined with a thorough understanding of the 
instruments Theory of Operation (found in Section 9) are useful for troubleshooting in three ways: 
  The technician can view the raw, unprocessed signal level of the calibrator’s critical inputs and outputs.  
  Many of the components and functions that are normally under algorithmic control of the CPU can be 
manually exercised.  
  The technician can directly control the signal level Analog and Digital Output signals. 
This allows the technician to observe systematically the effect of directly controlling these signals on the 
operation of the calibrator.  Figure 11-1 is an example of how to use the Signal I/O menu to view the raw voltage 
of an input signal or to control the state of an output voltage or control signal.  The specific parameter will vary 
depending on the situation. 
 
Figure 11-1: 
Example of Signal I/O Function 
07223B DCN6378