Keysight 9000 Series Service Manual page 59

Figure 5
LED Test Screen
5 Self Calibration
1 Complete a self calibration by following the procedures in chapter 4.
2 If the calibration test fails, replace the acquisition board.
6 The system is operational. Performance test the oscilloscope using the procedures in chapter 4 of this
service manual.
Chapter 4: Troubleshooting
3 Repeatedly push the Single button on the front panel to step through and highlight each LED
symbol in the test screen. You can also step through the LEDs by clicking the [Prev] or [Next]
buttons on the display screen. Verify that the corresponding LEDs on the front panel are the only
ones illuminated. Additionally, pressing the [Multi Purpose] button on the front panel will
illuminate all the LEDs while pressing the [Clear Display] button on the front panel will turn off
all the LEDs.
4 When you are finished, click Close.
5 If any of the LEDS do not work, go to "To check the LEDs" later in this chapter.
6 If both tests pass, go to step E.
Primary Trouble Isolation
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