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Chapter 3 Features and Functions
System-Related Operations
3
Display Contrast
To optimize the readability of the front-panel display, you can adjust the
contrast setting. This feature is available from the front panel only.
• Display contrast: 15 to 50. The default is 30.
• The contrast setting is stored in non-volatile memory and does not
change when power has been off or after a remote interface reset.
• Front-Panel Operation: Press and then select the Display Contr
softkey from the “System” menu.
Self-Test
•A power-on self-test occurs automatically when you turn on the
function generator. This limited test assures you that the function
generator is operational.
•A complete self-test runs a series of tests and takes approximately
15 seconds to execute. If all tests pass, you can have high confidence
that the function generator is fully operational.
• If the complete self-test is successful, “Self-Test Passed” is displayed
on the front panel. If the self-test fails, “Self-Test Failed” is displayed
and an error number is shown. See the Agilent 33220A Service Guide
for instructions on returning the instrument to Agilent for service.
• Front-Panel Operation: Press and then select the Self Test
softkey from the “Test/Cal” menu.
• Remote Interface Operation:
*TST?
Returns “0” if the self-test passes or “1” if it fails. If the self-test fails,
an error message is also generated with additional information on
why the test failed.
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