7
NOTE: Before proceeding, it is important to discharge any static charge you may be carrying by touching any large metal object
(away from the KEEMUX-Sx).
4. The first visible circuit board, the uppermost board, is the video board
5 Along the back of the video board are between 3 and 5 video ribbons (depending on how many monitors
the unit is designed to connect to) connecting the video board to a circuit board on the rear panel with
15HD connectors on it. Disconnect the flat ribbon cables from the video board to each header on the
rear panel. Take note as to where they go for re-assembly later. Do not disconnect them from the video
board headers.
6. There are 4 nuts that secure the video board to standoffs. Remove the 4 nuts.
To avoid further more difficult disassembly, the video board and front panel will be removed from the KEEMUX-Sx as an
assembly.
7. Carefully loosen the video board from the standoffs. With it loosened, grasp firmly the video board and
front panel at the same time and slide the front panel up out of the slots in the plastic case that support it.
Once clear of the case, pivot the assembly back approximately 1", just enough to expose the jumper
block. Be careful not to dislodge the connection of the ribbon connecting the front panel to the digital
board. If it appears to become loose, be sure to reseat the connection before re-assembly. Now follow
the instructions under "CONFIGURING THE JUMPER BLOCK" on page 9.
Lift and pivot board and front
panel......
....and set back enough
to clear jumper block.
Set video board and front panel assembly back far enough to clear jumper block.
Jumper block
Standoffs
Be careful not to scratch the bottom
of the circuit board on standoff
threads.
Ribbon from LED
board to digital board
Disconnect video
ribbons here
Nuts (4) secure the circuit board
to the standoffs.
Video Board
Digital Board
15HD Connector
Overhead view of video board on top of digital board.
The jumper block is located
below the LED board.
LED Board
Front Panel
Rear Panel
