IR Troubleshooting Guide

NOTE: Due to the many variables in a given installation, the troubleshooting countermeasures you will have to take may vary from job to job. Each installation is different due to the number of IR receivers in use, length of wire runs, type of wire, amount of ambient IR noise present, etc…. Therefore, your

countermeasures for a particular job will range from nothing at all, to any combination of the solutions listed below.

Model #’s

IR Receivers: Model #’s 291, 480, 490, & 780 Series

Symptom #1: DIM or NO Talk Back LED during IR Reception or reduced operational range

	Cause:	Solution
1.	Weak Batteries in Transmitting Remote.	Replace batteries.

2.	Bad Emitter or no emitter plugged into	Test emitter and verify wiring.
	connecting block.
3.	Signal wire between IR Receiver and the	Recheck wiring.
	Connecting Block is open.
		Verify supply is a 12VDC regulated
		supply reading between 11.5 to

4.Power Supply not putting out proper voltage. 13VDC under load. Should be using Power Supply Model 781RG

		(12VDC Regulated, 200mA) or 782-
		00 (12VDC Regulated, 1.2A)

		If you are using a passive
		connecting block, such as a 789-44,
		and the system is not working, try
	Output from the IR receiver/connecting block	the amplified connecting block,
	Output from the IR receiver/connecting block	model 791-44. Put one of the small
		model 791-44. Put one of the small
	5. is connected to a high impedance IR input jack plastic case jumpers supplied with
	on a component.	the block on the pins next to the
		the block on the pins next to the
		emitter jack. This will provide the IR-
		in jack on the component with a
		hotter signal.
	6. IR Receiver is inoperable.	Replace Receiver.
	(XTRALINK Only) RF Amplifier is being used	Need to use a Bypass Kit (model
	(XTRALINK Only) RF Amplifier is being used	BYPASS94 Kit) to route the IR
	7. on same COAX Line anywhere between the	control signals around the
	Coupler (CPL94) and Injector (INJ94).	control signals around the
	Coupler (CPL94) and Injector (INJ94).	amplifier(s).
		amplifier(s).



08905105A	- 4 -

490-85 specifications

The Xantech 490-85 is a sophisticated infrared (IR) distribution amplifier designed specifically for enhancing audio and video installation systems. Its well-engineered features cater to both residential and commercial settings, making it an essential component for integrators requiring high-performance signal distribution.

At the core of the Xantech 490-85 is its ability to expand IR control outputs. The device takes a single IR signal and distributes it to multiple devices, enabling seamless control of various components within a home theatre or multi-room setup. This versatility is ideal for users who need to control several AV devices from a centralized location without having to struggle with multiple remotes.

One of the standout features of the Xantech 490-85 is its ability to support up to eight output ports. This multiple output capability ensures that users can connect an extensive range of devices, from televisions and DVD players to cable boxes and streaming devices, all while maintaining consistent signal quality. The amplifier is built to minimize signal degradation, ensuring that the integrity of the IR commands remains intact, even over long distances.

The technology behind the Xantech 490-85 employs advanced signal boosting capabilities, which facilitate the transfer of IR signals over extended runs of cable. This means that users can expect robust and reliable operation, even in larger spaces where traditional systems might falter. The device also includes built-in short circuit protection, safeguarding the system from potential damage caused by improper connections.

Another characteristic that elevates the Xantech 490-85 is its ease of installation. The user-friendly design allows installers to set up the unit quickly and efficiently without extensive technical knowledge. The compact appearance ensures that the device can be discreetly integrated into existing systems without causing clutter.

In summary, the Xantech 490-85 stands out as a reliable and efficient IR distribution amplifier that enhances control capabilities within audio and video installations. Its multiple output options, advanced technologies, and straightforward installation make it a favored choice for professional integrators and enthusiasts alike. With this device, managing multiple AV components becomes a hassle-free experience, paving the way for a streamlined and enjoyable multimedia environment.