Xantech 490-85 manual

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Table of contents for the manual

  • Page 1

    08905105A - 1 - INSTALLATION INSTRUCTIONS 490-85 CLF / LCD Friendly Micr o Link IR Receiver DESCRIPTION The 490-85 is a CFL (compact fluoresc ent light) / LCD (liquid crystal di splay) version of the 490 Micro Link series IR receivers. It is specifically designed to have greater i mmunity to high frequency ballasted CFL and overhead fluorescent typ[...]

  • Page 2

    08905105A - 2 - 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. Howe ver, some manufacturer’s components that you wish to control may use different carrier frequencies (such as RCA DSS satell ite receivers that use 56kHz). If sure carrier frequenc[...]

  • Page 3

    08905105A - 3 - APPLICATION WIRING A typical system, with a 490-85, 781RG Power S upply 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[...]

  • Page 4

    08905105A - 4 - IR Troubleshooting Guide NOTE: Due to the many variables in a given installa tion, the troubleshooting counter measures you will have to take may vary from job to job. Each insta llation 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, yo[...]

  • Page 5

    08905105A - 5 - Symptom #2: TB LED on IR Receiver (and/or Emitters) Dimly lit or flickering Cause: Solution 1. Signal and ground wir es 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[...]

  • Page 6

    08905105A - 6 - Symptom #3: TB LED on IR Receiver (and/or Emitters) on solid Cause: Solution 1. Plasma Interference 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 contact with within approx. 3ft. From the front of the display. Keep[...]

  • Page 7

    08905105A - 7 - Symptom #4: TB LED on IR Rec. blinks but 283M or 286M '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 [...]

  • Page 8

    08905105A - 8 - Symptom 6: Emitters function but some (or all) components do not respond. Cause: Solution 1. Emitter placement is incorrect. Reposition the Emitter so that it is directly over the components sensor window. Consult the components owners manual of the unit for the exact location of the IR Sensor Window. 2. Emitter placement is correct[...]

  • Page 9

    08905105A - 9 - Symptom #7: Absolutely No Functionality (How to determine which component is at fault) Step: Component to Test Instructions 1. Verify Power Supply 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 [...]

  • Page 10

    08905105A - 10 - 4. Verify IR Receiver. 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 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. X[...]