Keysight 9000 Series Service Manual page 98

Chapter 5: Replacing Assemblies
To remove and replace the backlight inverter board
4 Pull the front panel chassis away from the main chassis as shown in Figure 32.
Figure 32
Front chassis after you lift it up
Main oscilloscope chassis (lying on
its rear panel)
5 Disconnect the cables from the backlight inverter board and remove the two T10 screws (shown in
Figure 33). You may need to temporarily remove the touch screen cable (with the blue connector) in
order to remove and replace the inverter board.
Figure 33
Disconnect these cables
Remove these two T10 screws
6 When you replace the inverter board, tighten the screws to 5 in-lbs and be sure to align the board over
the screw holes.
98
Inverter board