To Check The Leds - Keysight 9000 Series Service Manual

Chapter 4: Troubleshooting

To check the LEDs

To check the LEDs
If any of the LEDs are not working on the front panel, the first step is to trouble shoot the acquisition
assembly to make sure it is working. If it is working then replace the keyboard assembly and see if the
LEDs will illuminate. If the LEDs will not illuminate, the last step is to reload the oscilloscope software.
When reassembling the oscilloscope all boards that were replaced, but turned out not to be causing the
problem should be reinstalled in the oscilloscope.
To Clean Connectors
To maintain the connectors, clean them with alcohol in a well-ventilated area with the oscilloscope's
power cord removed. Allow all residual alcohol moisture to evaporate, and the fumes to dissipate before
powering up the oscilloscope.
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