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Appendix F: User Service
F–12
DAS System User Manual
To install or remove a module from the mainframe, perform the following steps:
1. Power down the mainframe by using the front-panel power switch.
2. Wait 60 seconds. Remove the power cord and the attached probes (except the
92A60/90 Buffer Probe). If your mainframe has the three-phase power
supply option, disconnect the power cord at the wall outlet.
3. Locate the two square plastic latches near the back of the mainframe on its
lower sides (see Figure F–3); push in both buttons, lift the mainframe cover
from the back, tilt it away from the front of the mainframe, and remove it.
Press
Lift
Figure F–3: Removing the Mainframe Top Cover
4. Unfasten the two fasteners (top right and bottom right) that hold the
card-cage door to the card cage; remove the door (refer to Figure F–4).
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