TROUBLESHOOTING (continued)
Eliminating Optical feedback
In some installations, two conditions combine to create an optical feedback loop. Symptoms can include poor range, intermittent operation or no operation.
The conditions which sometimes combine to create a feedback loop are:
1.Both a sensor and a flasher are located within the same room.
2.There is some
You can eliminate optical feedback by replacing any IRB1 “flooding flasher” with an MF1 or MF2 MicroFlasher® and covering all flashers with the supplied IR blocking covers.
Identifying the Type of Interference
The blue “feedback” LED on the front of the TS120 is a useful troubleshooting aid.
The LED should light blue only when a remote command is being received. However, if the LED on the TS120 “flickers”, and the TS120 functions normally, there is no cause for concern.
If the TS120 does not work, and the LED does not light at all: Test the remote control(s) by operating the A/V equipment directly. Replace the batteries if needed. Double check the cable connections on the TS120’s and on the IR main system unit. Consult your IR main system unit’s manual for more detail.
If the TS120 does not work, and the LED “flickers” or remains solidly lit: Cover up the Sensor with a piece of cardboard (your hand will actually create electromagnetic interference under some conditions). Observe the IR test LED.
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