Primary Trouble Isolation - Keysight Infiniium 9000 Series Service Manual

4
Troubleshooting

Primary Trouble Isolation

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Perform power-up.
Connect the oscilloscope power cord and press the power button in the lower
left corner of the front panel. If the oscilloscope is working properly, it will take
several minutes to start up, and the graticule will appear on the screen. The
exact appearance may look slightly different than shown in the following figure,
depending on the setup selected before the oscilloscope was turned off.
If the oscilloscope shuts down without you pressing the front panel power
button, unplug the AC power cord from the rear of the instrument and wait 20
to 30 seconds. Then plug the AC power cord back into the oscilloscope and
press the front panel power button (or you can perform a hard shutdown 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, look through the rear fan slots to see the upper right corner of the
acquisition board (as viewed from the rear of the oscilloscope). A series of LEDs
is located in this corner of the acquisition board. Refer to
Trouble Isolation" on page 68 for more information on decoding these LEDs.
"Power Supply
Infiniium 9000 Series Oscilloscopes Service Guide