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IR TROUBLESHOOTING GUIDE
Symptom #3: Intermittent IR control (i.e. buttons on remote need to be
pressed multiple times)
Cause
1.
Plasma Interference.
2.
Relatively high levels of ambient
noise. This can be due to any of
the following: sunlight, florescent
lighting or Plasma Displays.
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.
4.
Low batteries in Remote
5.
Flasher placement is correct but
the signal is overpowering the
unit or there is bleed-through
from other Flashers close by.
Solution
Plasma interference can be reflected off
of any item it comes into contact with
within approx. 3 feet of the front of the
display. Keeping this in mind, make
sure that the IR Receiver is free from any
object that might reflect Plasma interfer-
ence back into the receiving eye.
Reposition the IR Receiver or eliminate
the light source.
Putting a 470-ohm resistor in parallel at
the IR Router between signal and ground
will effectively discharge the capacitance
of the wire. Adding a resistor between
the input and ground of the IR Router
will drop the IR level down somewhat. A
non-amplified connecting block, such
as the IR Router, may not have enough
signal output for consistent control of the
equipment.
Replace batteries.
If the A/V source (i.e. cable box, DVR or
satellite box) sees the IR signal twice, the
source will not process it correctly. Place
a piece of black electrical tape over the
Flasher to block reflected IR signals.
16
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