Specifications

Chapter 4: Troubleshooting

LED Troubleshooting

If you see a failure with the on/off switch backlight LED, replace the On/Off board. If

the LED will still not illuminate, replace the motherboard and see if this fixes the

problem. If the LED still does not work, the last option is to check the on/off cable

connecting the On/Off board to the motherboard.

If any of the other LEDs are not working on the front panel, the first step is to

troubleshoot the acquisition assemblies to make sure they are working. If they are

working, 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, be sure to reinstall all boards that were replaced,

but that were not causing the problem.