To Remove And Replace The Backlight Inverter Board - Keysight Infiniium 9000 Series Service Manual

To remove and replace the backlight inverter board

Use this procedure to remove and replace the backlight inverter board. When
necessary, refer to other removal procedures. The graphics in this chapter are
representative of the oscilloscope at the time of this printing. Your unit may look
different.
SHOCK HAZARD!
WARNING
The backlight inverter assembly, which is mounted behind the flat-panel display,
operates at high voltages. DO NOT handle this assembly while it is in operation.
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Infiniium 9000 Series Oscilloscopes Service Guide
Disconnect the power cable and remove the handle and rear cover.
Remove the front panel bezel as described in the beginning of the previous
section.
Open up the front chassis by removing the four T15 screws (two are located on
the right side of the oscilloscope and two are located on the left side). See the
following figure.
This is the upper right side
screw that needs removed.
There is also one below it and
then two screws on the
left side of the oscilloscope
in the same relative locations
Pull the front panel chassis away from the main chassis as shown in the
following figure.
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Replacing Assemblies
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