Chapter 6: Replacing Assemblies
To remove and replace the backlight inverter board
6–14
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.
Figure 6-12
Backlight Inverter Board
WARNING SHOCK HAZARD!
The backlight inverter assembly, which is mounted at the front corner of the oscilloscope near
the flat-panel display, operates at high voltages from 300-1 kV ac
rms
. DO NOT handle this
assembly while it is in operation.
1 Disconnect the power cable and remove the top and bottom covers.
2 Disconnect the two backlight cables from the top and bottom of the backlight inverter
board.
You can either stand the chassis on end or turn it over to gain access to both cables.
3 Disconnect the backlight primary cable W21 from the side of the backlight inverter
board.
4 Using a long T10 driver, remove the two Torx T10 screws that secure the backlight
inverter board to the chassis.
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