TDS 310, TDS 320 & TDS 350 Instruction Manual
65
Self Test
This procedure uses internal routines to verify that the oscilloscope functions
and passes its internal self tests and signal pathcompensations. It also
confirms that the oscilloscope was adjusted properly at the time it was last
adjusted. No test equipment or hookups are required.
Equipment Required: None.
Time Required: Approximately 5 minutes.
Prerequisites: Power up the oscilloscope and allow a 20 minute warmup
before doing this procedure.
Procedure:
1. Press UTILITY ! System: Diag ! Execute ! OK Confirm Run Test.
The internal diagnostics verify proper oscilloscope function. This verifica
tion takes about 30 seconds. While it progresses, a variety of test patterns
flash on screen. When finished, status messages appear on the screen.
2. Check that the screen reports no failures. If it reports a failure, the instru
ment has failed the self test. Proceed immediately to the troubleshooting
procedure on page 829.
3. Press CLEAR MENU.
4. Press UTILITY ! System: Cal.
5. Check that the word Pass appears in the main menu under the Voltage
Reference, Timing, and Ext Trig menu labels. (See Figure 62.) If any of
the labels read Fail, the instrument has failed the self test. Proceed im
mediately to the system calibration procedure on page 72.
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