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Bought used sony kp-43ht20 without remote so i bought 3 universal remotes and cant program any of them

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  • a2109024561 Sep 08, 2010

    well i borrowed my brothers original sony remote same model and still didnt wrk i was thinking maybe it was the ir reciever


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Without trial and error there's no way to know whether or not a universal remote control will work with a particular television. If you don't mind spending money on another remote according to part store Sony miracle remote model number MR 110 will work for this television $16.95

Original remote 147685311 is $96.02

The model number RM-Y908 also works with this television and is available for $29.95 at

Logitech Harmony 9662080403

Posted on Sep 08, 2010

  • Loretta Northcutt
    Loretta Northcutt Sep 08, 2010

    The ir sensor could be the problem. Before replacing the ir sensor in a television you can try further troubleshooting specifically completing a tv factory reset within its service menus. I do not have instructions for completing a factory reset on the television you own. The following is generic troubleshooting for remote control issues that might or might not help you:

    Replace batteries in the remote control, gently with the cleaning cloth, wipe the IR sensor located in the lower right bezel of the TV.
    2. Have the customer program the cable box or satellite remote control to work with the TV and see if this resolves the issue.
    3. Adjust backlight - if low, turn maximum level, if maximum level turn low (have customer tell you where it is set and what level they changed it to). If the OPC is enabled, temporarily disable this feature to ensure the backlight is at a constant level.
    4. If the set has the “Active Contrast” feature, temporarily disable this feature to see if there is any difference.
    5. Find out what type of environmental interferences there may be, such as alarm system, other items in the room that function with remotes, (remote controlled fans, remote controlled lights, DVD/DVR/Cable Box/Satellite Box, Stereo), fluorescent lighting (includes the energy saving CFL bulbs), sunlight, smart house (sensor controlled lights and heat) or power lines by the house. Move sources (DVD/DVR/Cable Box/Satellite Box, Stereo) to another area of the room, not in the same IR path of the set.
    6. Compact Fluorescent Light (CFL) bulbs are known to emit certain amounts of infra red radiation that can potentially interfere with electronic devices that use IR remote controls. Using CFL bulbs in sockets connected to a dimmer can result in occasional “pulsing” of light, even when the light switch is turned off. These IR pulses can be confused by the TV as IR commands and can potentially lock up the set.
    a. Using normal Incandescent bulbs
    b. Move the TV away from CFL light sources
    c. Try different CFL bulb brands. Professional Installers have recommended “Bright Effects” CFL bulbs available at Lowes for low amount of interference.
    7. IR repeaters and some PC controlled IR transmitters can interfere, and should not be placed in or directed at the IR path of the set.
    8. Have the customer move the set to a different room (if possible) of the house and see if the IR function is no longer affected.
    9. Do an industry init and see if remote works after the initialization (does it keep working).
    10. Unplug and replug set (recycle power) for at least 30 seconds.
    11. Get details of exactly when this symptom occurs (morning, night, while watching, on certain channels) and what is done to temporarily resolve the issue.


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It would be very helpful if you give the model and number of the 3 universal remote control that you bought.

Initial recommendation is to check first the IR sensor inside your television. Find a way to remove the back cover of your television to expose the small pc board where the IR sensor is located. The usual fault and the most common reason for inability of the remote control to communicate with the tv is because of the loose soldered terminal in the IR sensor section.

Resolder all terminal or solder joints in the IR sensor board.

Please post back if my first instruction did not work so I can give you another recommendation.

Please don't forget to rate this answer.
Thank you for using Fixya.

Posted on Sep 08, 2010

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