Extron Electronics CrossPoint Plus Matrix Switchers 84, 88, 124, 128, 168, 1616 HV and HVA - Manual (Page 64)

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 B-1.
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 B-1 — Removing the top cover
CAUTION Do not touch the components inside the switcher without being
electrically grounded. Electrostatic discharge (ESD) can damage ICs,
even if you cannot feel, see, or hear it.
4. Lift the top cover straight up as shown in figure B-1. Lift the cover evenly to
clear the grooves at the edge of the rear panel.