To Remove And Replace The Backlight Inverter Board - Agilent Technologies 54845B Manual

Chapter 6: Replacing Assemblies

To remove and replace the backlight inverter board

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 6-10
Backlight Inverter Board
WAR N IN G SHOCK HAZARD!
The backlight inverter assembly, which is mounted at the front corner of the instrument near
the flat-panel display, operates at high voltages from 300-1 kV ac
assembly while it is in operation.
Disconnect the power cable and remove the cover.
1
Disconnect the two backlight cables from the top and bottom of the backlight inverter
2
board.
You can either stand the chassis on end or turn it over to gain access to both cables.
Disconnect the backlight primary cable W21 from the side of the backlight inverter
3
board.
Using a long T10 driver, remove the two Torx T10 screws that secure the backlight
4
inverter board to the chassis.
6–10
. DO NOT handle this
rms