TDS 310, TDS 320 & TDS 350 Service Manual
4Ć5
Self Test
This procedure uses internal routines to verify that the oscilloscope functions
and passes its internal self tests and signal path compensations. 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 warmĆup
before doing this procedure.
Procedure:
1. Press UTILITY ! System: Diag ! Execute ! OK Confirm Run Test.
The internal diagnostics verify proper oscilloscope function. This verificaĆ
tion takes about 30 seconds. While it progresses, a variety of test patĆ
terns 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 instruĆ
ment has failed the self test. Proceed immediately to the troubleshooting
procedure on page 6Ć36.
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 4Ć2.) If any of
the labels read Fail, the instrument has failed the self test. Proceed
immediately to the system calibration procedure on page 5Ć2.
