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INSTALLATION INSTRUCTIONS
490-85
CLF / LCD Friendly Micro Link IR Receiver
DESCRIPTION
The 490-85 is a CFL (compact fluorescent light) / LCD (liquid crystal display) version of the 490 Micro
Link series IR receivers. It is specifically designed to have greater immunity to high frequency
ballasted CFL and overhead fluorescent type infrared inference and to have exceptional IR reception
range.
These small IR receivers have been designed primarily for mounting in panels, doors,
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IR CARRIER ADJUSTMENT The 490-85 is factory set to an IR carrier repeat frequency of 39kHz. This will be correct for the majority of installations. However, some manufacturer’s components that you wish to control may use different carrier frequencies (such as RCA DSS satellite receivers that use 56kHz). If sure carrier frequencies fall within the range of 32kHz to 56kHz, you can adjust the 490-85 to match them for the best range performance. The adjustment can be made through the small
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! =3#'&( 0 3 #5 >?/3(3(@(/3$'( #( 5535 # " " $ APPLICATION WIRING A typical system, with a 490-85, 781RG Power Supply and 283M Emitters plugged into a 791-44 Connecting Block, is shown in the figure below. 1. Plug the 3.5 mm stereo mini plug from the 490-85 into the 791-44 connecting block labeled “IR RCVR”. 2. Plug in the 3.5 mm mono mini plug from any of the 282, 284, 283 and 286 series Emitters into the ja
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IR Troubleshooting Guide NOTE: Due to the many variables in a given installation, the troubleshooting countermeasures you will have to take may vary from job to job. Each installation is different due to the number of IR receivers in use, length of wire runs, type of wire, amount of ambient IR noise present, etc…. Therefore, your countermeasures for a particular job will range from nothing at all, to any combination of the solutions listed below. IR Receivers: Model #’s 291, 480,
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Symptom #2: TB LED on IR Receiver (and/or Emitters) Dimly lit or flickering Cause: Solution Signal and ground wires are reversed or 1. Recheck your wiring. shorted either at the connecting block or IR receiver. 2. Replace Emitter Defective emitter. In this case use either a SUN filter (SUN480, SUN490, SUN780), or any of our ‘CFL Friendly’ IR Receivers (291-80, 480-80, 780-80). Relatively high levels of ambient noise. This For Plasma Interference use the 3. ca
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Symptom #3: TB LED on IR Receiver (and/or Emitters) on solid Cause: Solution Use a 490-90 Plasma 'Friendly' Receiver. If already using a 490-90 unit, please note the Plasma interference can be reflected off of any item it comes into 1. Plasma Interference contact with within approx. 3ft. From the front of the display. Keeping this in mind, make sure that the 490-90 is free from any obstruction that might reflect back into the receiving eye. 2. Recheck your w
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Symptom #4: TB LED on IR Rec. blinks but 283M or 286M 'Blink' style Emitters do not Cause: Solution There may be a short, such as a staple 1. Recheck your wiring. driven through the Signal and GND wires of the IR Receiver and/or the emitter. Replace Emitter or use TEST EMITTER 2. Emitter may be shorted internally to check circuit. (XTRALINK Only) TV on same splitter with Place a DC Blocker (Model 203-00) on 3 no IR Receiver installed any TV Leg without IR R
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Symptom 6: Emitters function but some (or all) components do not respond. Cause: Solution Reposition the Emitter so that it is directly over the components sensor 1. Emitter placement is incorrect. window. Consult the components owners manual of the unit for the exact location of the IR Sensor Window. Reposition the Emitter to a position that is suitable for the unit. Use a 283 or 286M Blink style emitter (they have a lower output than non-blink emitters 282 and 284
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Symptom #7: Absolutely No Functionality (How to determine which component is at fault) Step: Component to Test Instructions With a Multimeter, measure the DC Voltage of the supply while it is connected to the Connecting Block. Put the Negative lead of the meter on the terminal marked GND and the Positive Lead on the terminal marked 12VDC (or V). You should get a reading between 11.5VDC and 13.0VDC. If not, remove the supply from the Connecting block and measure again this t
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Remove the power supply from the connecting block and all Emitters from the output. Place a jumper wire on the connecting block between IR Signal and 4. Verify IR Receiver. GND. Reconnect the Power Supply. With a known good hand-held remote, shoot a constant IR Command at the receiver and verify the TB LED on the Receiver lights. Xantech Corporation 13100 Telfair Avenue, 2/F Sylmar, CA 91342 Phone: (818) 362-0353, Fax: (818) 362-9506
