Xantech 172-94X owner manual Trouble Shooting, Using a Xantech BYPASS94 Kit see text, item 3

TROUBLE SHOOTING:

1.Perhaps the most common problem encountered is stray IR or RF interference preventing proper opera- tion of the controlled equipment.

Examples of such interference are:

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

B.Direct or reflected sunlight.

C.Infrared security sensors (active type).

D.RF radiation from TV sets that may be close to IR Receivers.

It may be necessary to move either the interfering source or the IR receiver to achieve proper operation. Sometimes the Xantech Sun Filters will help.

You can confirm the source of the interference by temporarily turning off the remote room TV set, isolat- ing the 291-00 Receiver from all sunlight and turning off all lights, light dimmers and Infrared security sys- tems. Then check to see if the 291-00 operates the satellite receiver or other components.

2.If the signal does not seem to be getting through to the IR Emitters, check for shorts or opens anywhere between the IR receivers in the remote rooms and the emitters at the controlled equipment.

	Coaxial cable
	to IR receivers
	and TVs
CPL10
RF	RF/IR
CPL10 COUPLER
I R
Short Coaxial	Short Coaxial
Jumper Cable	Jumper Cable
RF Amp
OUT	IN
RF	RF/IR

CPL10 COUPLER

I R

	CPL10
3.5/3.5mm Mono	Coaxial cable
	from IR controlled
Mini Plug Cable
	RF sources

Fig. 4 Using a Xantech BYPASS94 Kit (see text, item 3, page 2)

A.Remember, you must have DC continuity all the way from the IR (IR RCVR) jacks on the Injectors, through the coax cables to the IR (emitter) jack on the coupler, without shorts to ground.

B.Use a Xantech 179-99 Test-IR (or a Blink IR Emitter) plugged into the IR (emitter) jack on the coupler to verify that the IR signal is being received from each room.

C.If necessary, use a multimeter in the low Ohms range to check for continuity, shorts, opens, etc.

D.Check for open emitters by substituting a known good emitter.

3.If you have one or more TV sets in rooms where you do not have Xtra links and they share the same DC passing RF splitter, you must use DC Blockers (Xantech Model 203-00) connected in the coaxial line to each of these TV sets.

Refer to Fig. 3. This is a must to prevent the RF Input of such TV sets from "shorting out" the IR control signal.

4.If a given component does not work, reposition the emitter. It may not be located directly over the component’s IR (infrared) sensor receiving “window”. Consult the owner's manual of the unit or the manufacturer for the exact location of the IR “window”.

12-19-01 Rev.C

4 

172-94X