10
Symptom #3: TB LED on IR Receiver (and/or Emitters) on solid
Cause:
Solution
1. Plasma Interference
Use a 85 or 95 series Plasma 'Friendly'
Receiver. If already using a this unit, please
note the Plasma interference can be reflected
off of any item it comes into contact with within
approx. 3ft. From the front of the display.
Keeping this in mind, make sure that the IR
receiver is free from any obstruction that might
reflect back into the receiving eye.
2.
Voltage and Ground wires are
reversed at the connecting
block or IR Receiver
Recheck your wiring.
3.
Relatively high levels of
ambient noise. This can be
due to any of the following:
Sunlight, florescent Lighting or
Plasma Displays.
In this case use either a SUN filter (SUNKIT),
or any of our ‘Plasma/CFL Friendly’ IR
Receivers (DL85/95, HL85/95, ML85/95,
WL85/95). These can also be used in direct
sunlight and in the presence of ‘tube style’
fluorescent lighting.
4.
EMI induced noise. This can
be due to light dimmer controls
or other radiating electronic
devices (PC’s or any poorly
shielded electronic device).
Reposition IR Receiver and/or cabling away
from emitting device. You can also place a
470Ohm resistor in parallel with the IR Signal
and GND connections on the connecting
block. This will also help alleviate any stray
capacitance in the cable.
5.
Power Supply not putting out
proper voltage.
Verify supply is a 12VDC regulated supply
reading between 11.5 to 13VDC under load.
11
Symptom #4: TB LED on IR Rec. blinks but 283D or 286D 'Blink'
style Emitters do not
Cause:
Solution
1.
There may be a short, such as a
staple driven through the Signal
and GND wires of the IR
Receiver and/or the emitter.
Recheck your wiring.
2. Emitter may be shorted internally
Replace Emitter or use TEST EMITTER to
check circuit.
3
(XTRALINK Only) TV on same
splitter with no IR Receiver
installed
Place a DC Blocker (Model 203-00) on
any TV Leg without IR Receiver
Symptom #5: Intermittent IR control (I.e. buttons on remote need to
be pressed multiple times)
Cause:
Solution
1. Plasma Interference
Use a 85 or 95 series Plasma 'Friendly'
Receiver
2.
Relatively high levels of ambient
noise. This can be due to any of
the following: Sunlight, florescent
Lighting or Plasma Displays.
In this case use either a SUN filter
(SUNKIT), or any of our ‘Plasma/CFL
Friendly’ IR Receivers (DL85/95, HL85/95,
ML85/95, WL85/95). These can also be
used in direct sunlight and in the presence
of ‘tube style’ fluorescent lighting.
3.
Long Wire Runs – shielded wire
typically of 100 feet (30 meters)
or longer causes a filter effect
due to accumulated capacitance
of the wire. Intermittent, or no IR
control, could actually be
because of the longer wire runs.
Putting a 470-ohm resistor in parallel at
the connecting block between signal and
ground will effectively discharge the
capacitance of the wire. This will allow the
signal to travel farther on shielded wire.
Adding a resistor between the input and
ground of the connecting block will drop
the IR level down somewhat. Passive
connecting blocks, such as the 789-44,
may not have enough signal output for
consistent control of the equipment. You
may have to upgrade to an amplified
connecting block to bring the IR level back
to normal. In these cases, the 791-44
would be an ideal connecting block for
single zone systems while the 795-20
would work best for a 2-4 zone system.
