To Check The Leds - Agilent Technologies 54835A Service Manual

To check the LEDs

Use the following procedure to test the front-panel LED (light-emitting diode) indicators.
Enable the graphical interface.
1
Select Self Test from the Utilities menu.
2
Select LED from the Self Test drop-down list box, then click Start Test.
3
The LED test screen appears, which shows a symbolic representation of all front panel LED
indicators. See figure 5-7.
Figure 5-7
LED Test Screen
Push the Marker A left and right arrow keys to highlight each LED symbol in the test
4
screen. Verify that the corresponding LEDs on the front panel are the only ones
illuminated.
Test by Rows
You can use the Marker B arrow keys to test LEDs by row; however, in the event that two LED indicators
are shorted together, there is a small chance that the test will not reveal the failure.
Chapter 5: Troubleshooting

To check the LEDs

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