Performance Verification
TDS3000B Series Service Manual
4-5
Performance Verification Procedures
The following three conditions must be met prior to doing these procedures:
1. The oscilloscope must have been operating continuously for twenty (20)
minutes in an environment the meets the operating range specifications for
temperature and humidity.
2. You must perform the Compensate Signal Path operation described on
page 2--22. If the operating temperature changes by more than 10° C, you
must perform the Compensate Signal Path operation again.
3. You must connect the oscilloscope and the test equipment to the same AC
power circuit. Connect the oscilloscope and t est instruments into a common
power strip if you are unsure of the AC power circuit distribution. C onnect-
ing the oscilloscope and test instruments into separate AC power circuits can
result in offset voltages between the equipment, which can invalidate the
performance verification procedure.
The time required to complete the entire procedure is approximately one hour.
WAR NING . Some procedures use hazardous voltages. To prevent electrical shock,
always set voltage source outputs to 0 V before making or changing any
interconnections.
This procedure uses internal routines to verify that the oscilloscope functions and
passes its internal self tests. No test equipment or hookups are required. Start the
self test with these steps:
1. Disconnect all probes and cables from the oscilloscope inputs.
2. Push the UTILITY menu button.
3. Push the System screen button to select Diags.
4. Push the Loop screen button and choose Once.
5. Push the Execute screen button.
6. Push the OK Confirm Run Test screen button.
A dialog box displays the result when the self test completes. Push the MENU
OFF screen button to continue operation.
Self Test
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