To Remove And Replace The Power Supply - Keysight 9000 Series Service Manual

Chapter 5: Replacing Assemblies

To remove and replace the power supply

To remove and replace the power supply
Use this procedure to remove and replace the power supply. 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.
W A R N I N G
SHOCK HAZARD!
If the power supply is defective it could have a dangerous charge on some capacitors. This charge could
remain for many days after removing power from the supply.
Disconnect the power cable and remove the rear cover.
1
2 Open up the acquisition board chamber by removing the sheet metal that separates the acquisition board
from the motherboard (you can see how to do this in the acquisition assembly removal section).
3 The power supply is attached to the underside of this piece of sheet metal.
Figure 47
4 Remove the screws shown in Figure 47 and lift the power supply encasement out of the oscilloscope.
5 Remove the connections to the power supply (Figure 48).
110
Remove these screws to lift the power supply and its
encasement out.
Power supply