4
CPL10 COUPLER
I R
RF
RF/IR
IN
OUT
CPL10
3.5/3.5mm Mono
Mini Plug Cable
Coaxial cable
to IR receivers
and TVs
RF Amp
CPL10
Short Coaxial
Jumper Cable
Short Coaxial
Jumper Cable
Coaxial cable
from IR controlled
RF sources
CPL10 COUPLER
I R
RF
RF/IR
Fig. 4
Using a Xantech BYPASS94 Kit
(see text, item 3, page 2)
172-94X
12-19-01
Rev.C
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.
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”.
