Page: 16 Model MRC44
© 2002 Xantech Corporation
CONNECTING THE MRC44 CONTROLLER/AMPLIFIER
When making connections to the MRC44 Controller be sure the power cord is unplugged. Proceed as follows,
referring to Figure 13 for Typical MRC44 System layout:
Source Component Connections
Audio Connections
(BASIC/ADVANCED)
Using good quality RCA-type patch cables connect the LEFT and RIGHT OUTPUT jacks of the source
component (DVD, CD, Satellite receiver, etc.) to the appropriate LEFT and RIGHT INPUT jacks on the
MRC44. Do this for each source component. Refer to Figure 13.
(EXPANDED)
Using good quality RCA-type patch cables connect the LEFT and RIGHT OUTPUT jacks of the source
component (DVD, CD, Satellite receiver, etc.) to the LEFT and RIGHT INPUT jacks on a Xantech AV61
Audio/Video Distribution Amplifier. Connect the LEFT and RIGHT OUTPUT jacks of the AV61 to the
appropriate LEFT and RIGHT INPUT jacks both MRC44 Controllers. Do this for each source component.
Refer to Figure 24. See text: “Zone Expansion” AV61 Connections.
Video Connections
(BASIC/ADVANCED)
Using good quality RCA-type video patch cables connect the VIDEO OUTPUT jacks of the source
component to the VIDEO INPUT jacks on the MRC44. Do this for each source Component. Refer to
Figure 13.
(EXPANDED)
Using good quality RCA-type patch cables connect the VIDEO OUTPUT jacks of the source component to
the VIDEO INPUT jacks on a Xantech AV61 Audio/Video Distribution Amplifier. Connect the VIDEO
OUTPUT jacks of the AV61 to the appropriate VIDEO INPUT jacks both MRC44 Controllers. Do this for
each source component. Refer to Figure 24. See text: “Zone Expansion” AV61 Connections.
IR Control Connections
(BASIC/ADVANCED)
Plug the supplied 283M IR emitters into the appropriate IR out jacks. Be careful to match the source audio
and video connection number on the MRC44 to the IR emitter jack number. This will ensure that the IR
control signal will be routed to the correct source component. Find the IR sensor window on the source
component and attach the emitter to the sensor window after removing the protective paper cover on the
flat side of the emitter head. A common IR jack is also provided for connection to other auxiliary devices.
(EXPANDED)
Connect the emitters as in Figure 24 using one 793-10 Serial Control Combiner for each common source
component that is to be controlled by both Controllers. See text: “Zone Expansion” 793-10 Connections.
Sense Input Connections
(BASIC/ADVANCED)
The sense input connection will typically be used to sense the power state of a source component using the
Xantech CSM1 Current Sense Module. Plug the 3.5mm miniplug from the CSM1 into the appropriate sense
jack. Be careful to match the source audio and video connection number on the MRC44 to the sense jack
number. The CSM1 plugs into an AC power source. The component power cord plugs into the CSM1.
CSM1 Threshold Adjustments
a. Manually turn the component ON first.
b. Using a small (1/8” wide) blade screwdriver, rotate the current control to a full counter-clockwise
position.
c. Rotate the control clockwise until the Threshold Adjustment LED goes OFF.
d. Manually turn the component OFF
e. Rotate the control until the Threshold Adjustment LED just goes ON.
f. Set the control to a point midway between these two settings. This should be the correct setting.
NOTE 1: If the Threshold Adjustment LED does not go ON and OFF with the component power mode,
make minor adjustments to the threshold adjust until the LED is in proper sync.
