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Internal IR Receiver
The internal IR receiver is located beneath the ‘X’ button. The internal IR receiver can receive and
respond to commands from the D5MR (mini-remote control) and the D5LR (learning remote control).
It will also pass-thru IR remote control commands to audio sources via an emitter. An emitter must be
connected to the D5IP or the emitter outputs from the D5RH. The internal IR receiver is plasma, LCD,
and CFL friendly.
The internal IR receiver is factory set to an IR carrier repeat frequency of 38kHz. This will be correct
for the majority of installations. However, some manufacturer’s components that you wish to control
may use different carrier frequencies (such as RCA DSS satellite receivers that use 56kHz). If you
are sure the carrier frequencies fall within the range of 32kHz to 56kHz, you can adjust the internal IR
receiver to match them for the best range performance. The adjustment can be made through the
potentiometer located on the front of the keypad.
To adjust, proceed as follows:
1. First, try the internal IR receiver. If it works well with good range, do not make any adjustments!
2. If it does not work or has poor range (less than 15 feet), determine the IR carrier frequency of the
product you wish to control. Contact the manufacturer of the
product, if necessary, to determine this frequency.
3. Using a small blade type screwdriver, rotate the adjustment
until the desired frequency has been achieved. This can be
down by adjusting the settings in eighth-turn increments and
trying the remote.
4. If you have products in the same IR system that have
different IR carrier frequencies, you will have to adjust the
internal IR receiver to a midway position. For example, some
may operate at 38kHz and others at 56kHz. In this case, set the
adjustment to approximately 47kHz, a midway position.
Note: Some products are more tolerant of compromised
frequency settings that others. You may have to “fine tune” the
adjustment to “favor” the least tolerant component for the best
performance of all units in the system.
ITEM DESCRIPTION
1 Internal IR receiver ‘eye’ is Plasma, LCD, and CFL
friendly.
2 Carrier adjustment. Used to adjust the output
carrier frequency.
Figure 3.4: Internal IR Receiver