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ADJUSTING THE IR CARRIER FREQUENCY 

The 29185D 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 the RCA DSS receivers that use 56kHz). If such carrier frequencies 
fall within the range of 32kHz to 56kHz, you can adjust the 29185D to match 
tem for best range performance. The adjustment can be made through the 
small thumbwheel on the rear of the unit.  
 
To adjust, proceed as follows: 
 

1.  First, try the IR receiver in the system. If the system controls all the 

desired components with adequate range, do not make any 
adjustments. 

2.  If the system does not work or has poor range, 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.  Facing the rear of the unit, rotate the thumb-wheel adjustment 

slightly either left to obtain carrier’s less than 38kHz or right to obtain 
carrier’s greater than 38kHz .  

4.  If you have audio/video equipment in the same system that has 

different IR carrier frequencies, you will have to adjust the IR receiver 
to the midway position. For example, some products may operate at 
38kHz and others at 56kHz. In this case, set the adjustment in 
between this range so both products can operate in the system.  

 
Note:

 Some products are more tolerant of compromised frequency settings than 

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.  

 
TROUBLE SHOOTING: 

1.  Perhaps the most common problem you may encounter is stray IR 

(infrared) or RF (radio frequency) interference preventing proper 
operation of the controlled equipment. 

 

Fluorescent, Compact Fluorescent, Neon or Halogen lights, 
Neon Art, and light dimmers. 

 

Direct of reflected sunlight. 

 

Infrared security sensors (active types). 

 

RF radiation from TV sets that may be close to the Hidden 
Link IR Receiver.  

2.  You can confirm the source of the interference by temporarily turning 

off TV sets, isolating the Hidden Link IR Receiver from all sunlight 
and turning off all lights, light dimmers and Infrared security systems. 
Then check to see if the Hidden Link IR Receiver operates the 
component. 

 

Sometimes interference will cause the red Talk-Back LED on 
the front of the Hidden Link IR Receiver to blink dimly, 
intermittently, or continuously. 

 

The Talk-Back Led should only blink when you are sending 
infrared commands to the Hidden Link IR receiver from a 
remote control. 

 

It may be necessary to move either the interfering source of 
the Hidden Link IR Receiver to achieve proper operation.  

3.  If the Talk-Back LED or the 286D Emitters do not blink when you are 

sending IR commands to the Hidden Link IR Receiver from a remote 
control, check the following: 

 

Make sure the power supply is plugged securely into a live 
AC electrical outlet. 

 

Be sure the stereo mini plug of the Hidden Link IR Receiver 
is plugged into the “IR RCVR” jack on the CB12 Connecting 
Block, not into the “OUT” jack.  

 

Check to see that all the mini plugs are properly seated into 
the mini jacks on the CB12 Connecting Block. 

4.  If the 286D Emitters blink, but the component does not respond, 

reposition the 286D Emitter(s). They may not be located directly over 
the component’s infrared receiving “window”. Consul the owner’s 
manual of the unit or the manufacturer for the exact location of the 
infrared “window”. 

 
 
 
 
 
 
Limited Warranty 

Xantech® warrants its products to be free of defects in materials or workmanship. This is a 
Limited Lifetime warranty from the date of purchase by the original consumer. Any products 
returned to Xantech and found to be defective by Xantech within the warranty period will be 
repaired or replaced, at Xantech’s option, at no charge. Xantech will not be responsible for the 
actual cost of installation or removal of the product, nor for any incidental or consequential 
damages. Some states do not allow the exclusion or limitation of incidental or consequential 
damages, so the above limitation may not apply to you. This warranty gives you specific legal 
rights. You may have additional legal rights that vary from state to state. 

 

Xantech Corporation 

13100 Telfair Ave. 2F, Sylmar CA 91342 | Xantech.com 

Installation Instructions, 29185D © 2008 Xantech Corporation 

Document # 08905178A 

 

This document is copyright protected. No part of this manual may be copied or reproduced in 

any form without prior written consent from Xantech Corporation. Xantech Corporation shall not 

be liable for operational, technical, or editorial errors/omissions made in this document. 

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