Extron Electronics MAV Series - Manual (Page 64)

Reference Information, cont’d
MAV Series Switchers • Reference Information B-2
Reference Information
Hardware Procedures
This appendix describes how to perform hardware upgrade 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. To open the 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 (figure B-1).
If you are also
installing a firmware
update, remove two
screws in this
location on the
bottom cover.
Fuse
Video
module
Power
supply
NOTE:
Front panel
board
Pin 1
Bus
cable
Figure B-1 — Removing the top cover screws
4. Lift the top cover straight up. 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, and the four screws and washers securing front panel to the
bottom cover. Three internal cables connected to the front panel can be
damaged if strained. Carefully tilt the front panel away from the main body
of the switcher.
6 . If you are updating the firmware, remove the top cable by pressing the two
receptacle tabs on the top cable outward, as shown at the left,
and pulling 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