Extron electronics CrossPoint 124, User Manual

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Reference Information, cont’d
CrossPoint Plus Matrix Switchers • Reference Information B-2
Reference Information
Hardware Upgrades
This appendix contains procedures for performing hardware maintenance
procedures such as swapping the RS-232 and RS-422 ports, installing a new
firmware update, and replacing the fuse.
Opening the switcher
Before you can perform any of the hardware upgrade procedures, you must open
the switcher. The interior of the CrossPoint Plus 84, 88, 124, and 188 switchers is
accessed by removing the top cover. The interior of the CrossPoint Plus 168 and
1616 is accessed by removing the front cover.
Opening the CrossPoint Plus 84, 88, 124, and 128
To open the CrossPoint Plus 84, 88, 124, or 128 switcher, do the following:
1. Disconnect the power cord from the switcher.
2. If the switcher is rack mounted, remove the switcher from the rack and place
it on a clean workspace.
3. Remove the eight screws that secure the switcher’s top cover as shown in
figure 45.
If you are installing a
firmware update, also
remove two screws in
this location on the
bottom cover.
Fuse
Video board
Power
supply
Front panel
board
NOTE
Figure 45 — Removing the top cover
4. Lift the top cover straight up as shown in figure 45. Lift the cover evenly to
clear the grooves at the edge of the rear panel.
5. If you are updating the firmware, remove the two screws at the front edge of
the bottom cover, press the two receptacle tabs on the
top cable outward as shown at the left, and pull back
gently on the cable connector to remove it from the
receptacle. Lay the front panel down in front of the
switcher.
Ribbon cable
Connector
Self-latching receptacle