Agilent Technologies 54830 Series Service Manual page 93

Chapter 5: Troubleshooting
Primary Trouble Isolation
Use the following procedure to test the front-panel LED (light-emitting diode) indicators.
1 Enable the graphical interface.
2 Select Self Test from the Utilities menu.
3 Select LED from the Self Test drop-down list box, then click Start Test.
The LED test screen appears, which shows a symbolic representation of all front panel LED
indicators. See Figure 5-4.
Figure 5-4
LED Test Screen
4 Push the Marker A left and right arrow keys to highlight each LED symbol in the test
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.
5 When you are finished, click Close.
6 If both tests pass, go to step E.
Self Calibration
E
1 Complete a self Calibration by following the procedures in chapter 3, "Testing
2 If the calibration test fails, replace the acquisition assembly. If the calibration test passes,
The system is operational. Performance test the oscilloscope using the procedures in
F
chapter 3 of this service manual.
5–8
screen. Verify that the corresponding LEDs on the front panel are the only ones
illuminated.
If any of the LEDS do not work, go to "To check the LEDs" later in this chapter.
Performance."
go to step F.