Question about Toshiba 36HFX71 36" TV

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Ir receiver not working Toshiba 36HFX71

TV remote control not working. Tested two remotes with camera and also one will control other devices just fine. Seems like IR receiver on TV is not working. Stopped suddenly. All other functions on the TV work fine.

Any ideas? I am very handy is this part available?

Thanks

Toshiba Dan

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freetek
  • 5568 Answers

SOURCE: Toshiba 32hfx71 / 36hfx71 remote control only sensing at one inch distance

Since the problem is common on two remotes, the source of your misery has to be inside your set, not with the remote. The receiver in the set may not be positioned as it should be since it is rare to have either end go 'a little bad.' They generally will fail totally instead. Any shop that services TVs will have a simple pen-like detector that will tell you if the remote is putting out enough signal to work as it should.
If your set has ever been repaired, the main board may not be sitting in the slots that act as supports.
You might try to hold the remote in several different positions; holding it below the IR window and pointing it upward, the same for each side and then above the window. If it seems to respond better from one or the other angle, then the receiver is not sitting square behind the window.      

Posted on Oct 28, 2008

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Hi Keith,


First of all, thank you for posting your question here at Fixya.

My first advice is to confirm if the remote control is not the issue here and ensure that the fault came from the TV itself. Point directly your remote control's infrared emitter(Sensor) to your cellphone camera and then press any button key at the remote control, you will be able to see the flash of an infrared through your camera if the remote control is working fine. Watch the video below to have an idea how you gonna do this.



If you've confirmed that the remote control is not faulty, this is an indication that the problem is on the infrared receiver inside the TV. I would advice you to clean the TV's front panel infrared lens using a soft cloth, keep away all obstruction from the IR receiver, turn of the bright light in the room and check if the symptoms still persist. If yes, then the IR receiver inside the TV is already faulty and needs to replaced with a new one.


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The remote control puts out IR (InfraRed) signal that human eyes cannot see, to find out if the remote is sending out the signal or not you just point the remote at the digital camera's Lens (Digital Camera can detect IR), you should see flashing light on the camera's screen when any one of the remote button is pushed. If you do see the flashing on the camera, then the problem is in the TV IR receiver or the main logic board; more troubleshooting with scope will be needed to look at the signals.
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www.remotes.com

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There is a simple way to test to see if you IR port on the remote is working. View the IR port using any digital camera, camcorder or cell-phone camera view screen. Through the view finder, the remote signals appear as a flashing blue light (whenever a button is pushed). Even the old-style VHS, VHS-c, and Hi-8 video cameras can "see" a remote's infrared signal.

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Since the problem is common on two remotes, the source of your misery has to be inside your set, not with the remote. The receiver in the set may not be positioned as it should be since it is rare to have either end go 'a little bad.' They generally will fail totally instead. Any shop that services TVs will have a simple pen-like detector that will tell you if the remote is putting out enough signal to work as it should.
If your set has ever been repaired, the main board may not be sitting in the slots that act as supports.
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In opening and working on your set, there are serious safety issues involved. You should be giving the set out to a trained and experienced TV tech for proper and reliable service.

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