Agilent Technologies DSO80204B, Руководство по обслуживанию

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Chapter 5: Troubleshooting
Primary Trouble Isolation
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B
Check the processor temperature.
If the processor temperature is over 70 °C, the motherboard will turn on an audible alarm. If the
alarm can be heard:
1 Reboot the oscilloscope.
2 Press del key when the splash screen is seen.
3 Scroll down to PC Health Status and press the Enter key.
4 Check that the Current CPU Temperature is around 45 °C.
If the processor temperature is hot, check the following:
1 Check that the processor’s heatsink is properly attached.
2 Check that the heatsink fan cable is connected to the motherboard.
If the above steps do not solve the problem then replace the motherboard assembly.
C
Check for the fan failure message.
When the oscilloscope application loads, it will check that the fans are running. If a fan is not
running, a fan failure message will appear. If more than one fan has failed, the oscilloscope will
shut down.
D
Run oscilloscope self-tests.
1 Select Self Test from the Utilities menu.
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 E.
E
Check the front panel response by running the knob, key, and LED self tests.
Use this procedure to verify correct keyboard operation.
1
Select Self Test from the Utilities menu.
2 Select Knob and Key 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.