AT&T PC 6300 - Page 557

MAINTENANCE
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9. Remove the four screws that attach the upper MFD Unit to
the cover and remove the MFD Unit from the cover
(Figure 5-66).
Figure 5-66. Removing the Metal Cover and Upper
MFD Unit
Prior to installing the new MFD Unit, verify that the jumpers are
set the same as the drive just removed. Refer to Appendix A for
the location and default setting of the jumpers. Remove the
terminating load resistor chip or jumpers as required.
To reinstall MFD Unit B, perform the removal procedures in
reverse order.
5-179
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