11
Symptom #2:
TB LED on IR Receiver (and/or Emitters) Dimly lit or flickering
Cause
Solution
1.
Signal and ground wires are
reversed or shorted either at the
connecting block or IR receiver.
Recheck your wiring.
2.
Defective emitter.
Replace Emitter
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.
Plasma Interference
Use an 85 or 95 series Plasma
'Friendly' IR Receiver. If already us-
ing a 85 or 95 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.
