Specifications

Chapter 5: Replacing Assemblies
Removing and Replacing the Acquisition Boards/Backplane Assembly
98
3
Remove the 10 M4 screws (five from each side) connecting the acquisition boards
to the rear panel. Keep the oscillator board tray connected to acquisition board
1 unless you have already removed it. When reassembling, torque the screws
to 18 in- lbs using a T20 driver.
Figure 5-61
4
Lift off the rear panel.
5 Remove the two screws (one on each side) connecting the oscillator board tray
to the backplane deck, unless you are replacing only acquisition board 4.
Figure 5-62
To remove only board 4, disconnect the 54932- 61624 cable and the attenuator
cable connection from board 4 only. Then remove the cable from the backplane
board to the DRO.
6 Lift the oscillator board tray straight up and slide it forward, carefully threading
the input cables through the opening. Place the oscillator board into an anti-
static bag.