Keysight Infiniium 8000 Series, Руководство по обслуживанию

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Chapter 6: Replacing Assemblies
To remove and replace the acquisition board assembly
116
To remove and replace the acquisition board assembly
Use this procedure to remove and replace the acquisition assembly. 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.
1
Disconnect the power cable and remove the bottom cover.
2
Remove the AutoProbe assembly (see page 104).
3
Remove the hex nuts that secure the BNC connectors to the front panel.
Use a 9/16” nut- driver to remove the hex nuts. See page 108.
4
Disconnect the three or four SMB cables from J13, J14, J15, and J16 from the
acquisition board assembly.
5
Disconnect the following cables from the inside edge of the Acquisition assembly:
• Power supply sense cable
• Probe control cable
• Power harness cable
• Line sync cable
• Acquisition cable
• Internal digital cable (MSO model oscilloscopes only)
These cables are attached to J5, J150, J6, J7, J9, J10, and J18 connectors. The J18
connector is near the CH4 attenuator.
6
Remove the 13 Torx T10 screws that secure the acquisition board to the chassis,
then lift the board back from the front panel until the BNC connectors clear
the panel. Lift the board away from the chassis.
Figure 6-22
Removing the acquisition assembly
7
To re- install the acquisition board assembly, reverse the above procedure. Be
sure to observe correct polarity for all cables and torque the BNC hex nuts to
2 Nm (18 in- lb).
Line Sync
cable
Power supply
sense cable
T10 Screws (13)
Probe control
cable
Power harness
cables
Acquisition
cable
Internal digital
cable (MSO only)
SMB
cables