Agilent Technologies Ininiium 9000 Especificaciones Pagina 88

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Chapter 5: Troubleshooting
Primary Trouble Isolation
88
B
If the oscilloscope shuts down without pressing the front panel power button, unplug the AC
power cord from the rear of the instrument and wait twenty to thirty seconds. Then plug the
AC power cord back into the oscilloscope and press the front panel power button (or you can
perform a hard shut down by holding the power button down for 5-6 second so the power turns
off and then pressing the power button again to restart the oscilloscope). If it shuts down again
then look through the rear fan slots to see the upper right hand corner of the acquisition board
(as viewed from the rear of the oscilloscope). There are a series of LEDs located in this upper
right hand corner of the acquisition board. Please consult the Power Supply Troubleshooting
section (page 91) of this chapter for more information on decoding these LEDs.
Figure 5-2
C
Once the oscilloscope will remain powered up, run the oscilloscope self-tests.
1 Select Self Test from the Utilities menu (these are discussed in detail starting on page 105).
2 Select Scope Self Tests from the Self Test drop down list box.
3 Click the Start Test button and follow the instructions on the screen.
If any of the selftests fail, go to the Acquisition Trouble Isolation troubleshooting flowchart later in this
chapter for further troubleshooting. Otherwise, go to step D.
D
Check the front panel response by running the Keyboard and LED self tests.
Use this procedure to verify correct keyboard operation.
1 Select Self Test from the Utilities menu.
2 Select Keyboard Test from the Self Test drop down list box, then click Start.
A new window appears with a symbolic representation of the keyboard. See Figure 5-3.
Look through these
slots and the fans
located behind
them to see the
upper right hand
corner of the
acquisition board
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