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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4 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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

AJIN G
  • 6694 Answers

SOURCE: toshiba tv model32w2300A how repair? 0nly in the screen say do not put the power off

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

Posted on Jan 07, 2017

andygoacher2
  • 17 Answers

SOURCE: My Toshiba remote control se-r0077 sometimes works to control the DVD player and other times it doesn't. I've tried new batteries and the problem still persist s

One of the best ways to check if an infra-red remote controller is working properly is to look at it using a camera. (a webcam or phone camera will work) The camera will see the infra red radiation as visible light. If the LED lights up (on camera) consistently when buttons are pressed, then it may not be the remote at fault, but rather the receiver in the DVD player. Most of the time though, it IS the remote control at fault, and these are usually easy to get working again.

Couple of things to check are:

1) the battery terminals...
Batteries can leak and corrode the terminals in the battery compartments. Signs of this include rust, green coloured contacts, or a crystalline deposit. If you see any of this then clean the contacts using metal cleaner or some methylated spirit and cue-tips.

2) Broken wires connecting battery terminals to the circuit board...
The soldering in some remotes can be rather poor, and wires can sometimes come loose, especially if a remote has been dropped or bashed about a bit. Unscrew the remote and check everything is connected properly


3) Dirt under the buttons...
This can prevent a button from making contact with the circuit board properly. Unscrew the controller and separate the rubber button pads from the circuit board check for dirt both underneath the pads AND on the metal contacts on the circuit board. Clean as required with methylated spirit and cue-tips and then reassemble.


Hope that helps!

Posted on Jan 08, 2017

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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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Let's find out if it is the remote or the remote IR receiver in the TV.
Testing remote control:
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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Testing remote control:
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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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.      

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Are you serious?

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Any device using a IR remote control, must have an IR receiver to gather the siganl being transmitted. The IR siganl is a coded message of instructions for the device.

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