User Guide

Installation and Wiring
12
AXB-TC and AXB-TCR Television Controllers
1. Remove the two Phillips-head screws on the bottom of the television controller enclosure.
2. Pull the two enclosure halves apart and set the bottom portion of the enclosure on a flat surface.
3. Locate the POT screw on the circuit card and turn it counterclockwise with a flat-blade tool
until it stops.
4. Turn the POT screw clockwise one-eighth turn to increase signal saturation. Then, send an IR
control signal to the television. If the television performs correctly, go to step 5. If not, repeat
this step until the television performs the correct operation.
5. Send an IR control signal to the television for all programmed operations. If an operation fails,
go back to step 4.
6. Reattach the enclosure and refasten the two screws.
Replacing the Lithium Battery
There is a lithium battery (FIG. 12), with a life of approximately five years, in the television
controller that protects stored presets if there is a power loss. The battery is not used when DC
power is supplied to the television controller. You should write down the replacement date on a
sticker or label by adding 5 years to the date of installation, and attach it to the bottom of the
television controller.
Contact your AMX dealer before you replace the lithium battery to verify that they have a current
copy of the IRLIB program file for your television controller. This will prevent any inadvertent loss
of data or service outage.
Use a flat-blade tool (non-conducting) that can be slipped under the lithium battery to pry it up and
out of the socket.
1. Discharge the static electricity from your body.
2. Unplug all cables from the television controller.
3. Remove the two Phillips-head screws on the bottom of the television controller enclosure.
4. Pull the two enclosure halves apart and set the bottom portion of the enclosure on a flat surface.
5. Locate the battery on the circuit card.
FIG. 12 Lithium battery and socket
Battery (CR2025 type)
socket
All control commands in television controller memory are lost when the lithium battery
is replaced.
Static electricity can damage electronic circuitry. Before removing the battery from
the enclosure, discharge any static electricity from your body by touching a grounded
metal object.