Modifying The Processor For Key Mode - AT&T MERLIN LEGEND Release 3.1 Installation Manual

Modifying the Processor
for Key Mode
Modifying the Processor
for Key Mode
To modify the processor for Key mode in Release 3.0 and later, follow the
steps below. For earlier releases, see Appendix E in Maintenance and
Troubleshooting.
Prepare a non-metallic surface, such as a table, on which to work.
!
WARNING:
Do not touch the gold connectors on the rear of the processor module.
Electrostatic discharge (ESD) can damage the circuitry, as can the oil
from your fingertips. Use a properly grounded wrist strap to prevent
damage from electrostatic discharge.
Only a qualified technician should perform this procedure.
1 Remove the control unit housing. See Figure 9–1.
2 Power down the system as described earlier in this chapter. See
Figure 9–2.
3 Remove the processor module from the carrier. See Figure 9–3.
4 Place the processor module on a flat surface with the wiring manager on
your left.
5 Unclip and remove the left side panel. See Figure 9–5.
9–12
Upgrading the System