Digital Equipment VAXstation 4000 90, Service Information

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TURBOchannel Adapter and Option Modules
TURBOchannel
Adapter
and Option
Removal Table 6–7 provides an overview of how to remove and replace the
TURBOchannel adapter and the TURBOchannel option.
Table 6–7 TURBOchannel Adapter/Option Removal
Step Action
1 Disconnect the TURBOchannel option cable.
2 Remove the two screws that hold the option plate
over the outside of the TURBOchannel option.
3 Disconnect and remove the SCSI cable from the
system board and from the opening over the
external TURBOchannel port.
4 Remove the graphics module.
5 Pivot the TURBOchannel option upward and lift it
out.
6 Remove the TURBOchannel adapter from the four
plastic standoffs.
7 Replace in reverse order.
6–54