Infrared sensor in TV caused remote control not to work.
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- čas přidán 26. 01. 2016
- Every now and then someone brings in a remote control for repair, and I come to discover their remote control is working fine, but they have problem with their TVs infrared sensor. In this video I show what the sensor looks like and talk a little about testing them.
Answered my question exactly. Thanks for the tip of checking the remote with the video camera. That worked like a dream. Now I know the repair is going to be on my TV. Not good news. I was just hoping for new batteries in the remote, but your video set me straight.
Here is a solution to try first before going down the replacement track. My remote wouldn't operate my Samsung 55" curved screen TV at all. It worked fine on my other Samsung TV and the other TV remote would not work on the curved screen. I went through all the usual reset procedures, replacing batteries, powering down the TV, resetting as best I could without the remote to use and nothing. I was ready to proceed with a repair or buying a new TV. Then I had one last thing I had not tried. I removed the power cord, removed all plugged in devices like a thumb drive ,a powered external 4TB drive and even the connection box this TV comes with. I held the power button on the TV on for 30 Seconds, then plugged the connection box back in but not the external 4GB hard drive. Powered up the TV and straight away it connected to the remote and all is back to normal. Now I am not sure which part of that procedure did the trick, but I am guessing that the only thing that was still live with power when I previously powered down was the 4TB external USB drive. Maybe somehow it was holding power to the internal TV USB system but as soon as I rebooted without it plugged it all went back to normal. I have since plugged the hard drive back in as I use it for recording TV programs and it is still working fine. This might just bean option for anyone else with similar issues to try.
Thx dude it helped a lot !!!!
Problem solved!
My tv downstairs (same brand) works and controls my tv upstairs.
The original control stopped working on the tv but works on the one downstairs, lol
Very good information
I have a Hitachi plasma that intermittently fails to see the remote. Seems like it starts working after the TV has been on for a while, but not always. I guess I'll just try replacing the sensor.
I had one of those test strips when I used to repair photocopiers. I had such a hard time finding one on the internet, I thought I imagined it. Finally found one from MCM electronics.
I have the question! Same thing happens with my two-year old Sony Bravia 4K television. I replaced the batteries in the remote. Nothing. Ordered a new remote. Nothing. My cable box remote control can turn the tv on/off and change the volume but the TV wouldn't respond to it, either. The day after I received the new remote control the IR sensor suddenly began working with all three remotes. Now, it's happening again. Really frustrating. It's a 55" and not easy for me to get it to an authorized repair shop.
I have this LG bluray player that sometimes refuses to accept the signal from the remote and sometimes it accepts it normally. Like, one day it will not work at all, but leaving it for a few days it works as usual until at some point it just refuses further inputs. Is it possible for the sensor to "go bad" partially like that?
Thank you i may have this issue
i have a panasonic display that the remote stopped working for after i cleaned the remote button contacts. the remote emits light, and makes the display's green power light flicker, but all remote functions have ceased. could it be the sensor? or does the flickering power led indicate the sensor is working? thanks for the video.
Hey man I have a Sharp Aquos LC-60UQ17U TV and I believe that my IR sensor went out is that hard to change? If it is not could you tell me a part number for the board or point mé in the right direction. Thanks 👍👍from me!
Not all cameras can pick up the light,I got nothing on iPhone 7 checked with an old Nokia and it was working
Yes I noticed this also.
Thanks Dave. I use my cell phone camera to see if they work.
+Patrick Woodlock
That's hard to believe. Maybe there was something wrong.
+Patrick Woodlock
That's interesting. I'll check and see if I know someone who has one.
+Patrick Woodlock The front-facing camera on the 4S can see it, but not the rear-facing camera. (At least on mine) I guess they added an IR filter. Also, if you have a laptop with a built in webcam, that might work too.
Infrared is parasitic light with regard to camera image - it makes bright red objects such as flowers appear washed out and greyish or purplish in sunlight. The more upmarket the camera, the more the manufacturer strives for good colour reproduction and the better their IR-cut filters will be. IR-cut filter is usually a separate plate within camera assembly, it's not a part of the CMOS matrix, unlike the Bayes filter, so the manufacturer can specify to get a different one made without it costing them a fortune.
But it pays to get the shittiest camera possible if you want your remote controls to shine brightly.
@Patrick Woodlock iPhones and iPads with IR filters won't work
I have a Seiki tv that wont turn on with the remote control. It will turn on by pressing the power button on the tv itself. After i turn it on the remote works at it should i can change channels, volume, etcetera. The remote even turns the tv off when i press its power button but once it is off, it wont power it back on. I have and older model smartphone that has the capability to operate the tv set. It also wont power it on. But once i turn the tv on manually the smart phone is able operate the tv just like the remote control. Do you think it is the ir sensor on the tv itself that is bad?
please help me where to buy IR sensor for devant Model no. 32DL 541
My Videocon welcome series 40 inch led tv has not catching remote sensor and not responding plz help WT to do
Hi. Thank you for the instructional video, it confirmed my suspicions that my bulb is bad.
Do you know of any good ,
step by step tutorials on this?
🙏
Sensor*
Sorry I don't.
@@GrantsPassTVRepair
Part numbers don't matter for this?
@@NunYa953 I don't know if the IR emitter diodes in the remote controls all operate on the same voltage, but make sure you get the Plus and Negative correct of it will not work at all. The other thing to consider is there may be some other reason why the IR Emitter is not operating, but I generally start by testing the IR LED with an independent power supply, but becareful if you do. their operating voltage can be under 2 volts, and I've damaged them while testing.
@@GrantsPassTVRepair
Ok. Thanks! I'm working on a Sony S-VHS professional machine. I'm on the right track I think but it's not the sensor or the remote I know for sure. I need to find some schematics I think!
Thanks for the video. But what if i don't have a similar IR sensor component, like you do, from a scrapped TV? There are literally dozens of IR sensor part numbers (TSOP, TSSP followed by designators for frequency range, voltage output) available... but which one do I need? I have yet to find a TV schematic that breaks it down to that component level.
I'm not sure of the specifications, but when I went to images.google.com/ and put in the key words "IR sensors for TVs" they came up. Here's an example. www.arrow.com/en/products/tsop4856/vishay?gclid=Cj0KCQjwpeaYBhDXARIsAEzItbE3y-2lUnno4Wz1Cwezif_dqw7V20dV_bBRYmqx5GdlF2pyLOAVUK4aAi6vEALw_wcB&gclsrc=aw.ds
Thanks for this video. I have a number of remotes that work and the IR receiver responds. However it repeats the input indefinitely. e.g. if I press volume up once, it will go up, step by step to max, ditto for vol down. channel up one scrolls through all channels until I press OK when it stops - but that is difficult to use. I have this on one of my TVs and also on a friends TV.
Sounds like stuck buttons. Did something spill on it?
I have 2 panasonic sa-ak520 the one I use has better sound quality but the IR sensor doesn’t work so I opened the other one and removed the circuit board that had the IR sensor and replaced it on the other one, at first it work but then stopped working, why when it was on the other stereo it never stopped working but when I moved it to the one I use it worked but stopped working now both don’t work, and I have a 3rd one that does work but I’m afraid ones making the swich it’ll work then stop
I have a tv that works fine but doesn’t respond to the remote, I checked the remote is fine, the ir sensor flashes when the tv it switched on but will not respond to the remote, would this require the small sensor on the board to be changed?
Can i use another IR receiver from any device.. Or is there a specific one that i should use..!
Ans if i used a different one from another device.. Will i have to change the remote control itself?
You need to use the right one for your TV. Some are interchangeable from other models.
So a working remote not operating the tv is NEVER on the main board?
Remote is fine with the camera test! So sensor went bad on the TV is my guess, is that going to be an expensive fix?
is it posible to simply unsolder these IR LEDs and to extend them with a cable from the board? What max cable length would u suggest? Will that resistance harm the range?
I would not think you would encounter any problems with a long extension wire, unless there was a strong source of electromagnetic or Radio frequency radiation near by..
Hi there, I am attempting to replace the IR sensor on my Samsung Smart TV model # UN65F7050AF. I have removed the back panel but am not sure where the IR sensor is located. Can you please tell me where/how I can find the IR sensor? Thanks so much!
usually under the front bezel which can be removed with a jewelers screwdriver
Hi, I have a Sylvania 4K TV. It's not a Smart TV or anything, just a 4K. I try to use the remote and it doesn't work. The TV appears to be getting a signal from the remote, as the small power light at the bottom right corner of the TV (which is normally a solid blue when powered on) will flicker red as if there is communication going on, yet the TV doesn't respond to any commands pressed on the remote. Any ideas?
hey, have you fixed that one, or got any solution what is bad...? this is happening to my TV right now... It's under warranty like 3 more years, but it's 49" and I really wouldn't like to carry it around,
Very nice, I will have to find one of those infrared cardboard testers.
+MidwestMotoRider
Just use your cell phone camera.
Robert Calk Jr. Yea, I don't have a Cell phone never needed one so I never got one me and my Wife are fine with out spending the extra money on one. The kids have em but then they are never around when you need them. :) I will just get that tester..
+MidwestMotoRider
Wow, I thought everybody had one. They sure are handy to have. You can use any camera though. I just mentioned a cell phone because even 3rd graders have them, and it would usually be easier to use.
+Robert Calk Jr. I am sure they come in handy for some it would just be a leash for me, I have gotten along fine with out one for 52 years no reason to have one now. I do have a point and shoot camera however it died and while I get the whole idea about the camera its better if I don't keep a camera in my shop and for the couple of bucks for the tester I would rather just keep that in the desk drawer for those few times I need it. Funny how everyone just assumes everyone has a cell phone these days.. Just shows how well they have been marketed that everyone thinks they have to have one.
+MidwestMotoRider
You don't have to have one but they are very handy to have, especially in emergencies. I don't care to live like the Flintstones myself. I used to feel the same as you, but I got tired of looking for a pay phone every-time I needed to call someone while I was traveling.
Hi,
Thanks for this video. You passed on some good information. I do have a question, though. I've got a 32" LCD Olevia TV that was abandoned outside my apartment. It has a very nice picture and sounds great. No remote control, so I tried using a universal remote control, but it didn't work. I believe the remote control sensor is not working. When I get inside this TV, is there a part number on these sensors where I can order another one on Ebay, Mouser or Digi Key?
Thanks, Tom
You might check with the manufacture first. It might not be as expensive as you think. Other wise shop Jimmy or ebay as a last resort.
Thanks for the quick reply. In doing some research, I think that Olevia is no longer in business. I'll keep my eyes open for another IR sensor on a scrap TV circuit board. Maybe I'll get lucky.
Hi Joe,
I was able to find an Olevia remote control on Ebay, so I took a chance and got it. Turns out it works perfectly on this TV. I have no idea why I was never able to get the universal remote control to work.
I've got a power supply for a surround system that failed by bad caps. Replaced ALL of them and everything but the -27 rail for the display came back. The transformer is whining like it won't start or something and I'm getting 37v on the output of the transformer. Anything you can think of that could be causing it?
+joblessalex Some times I see burned up resistors, when I find bad caps. Would look for any bad resistors. Best of luck. Let me know if you find any.
+joblessalex K You gave me a clue when you mentioned that your transformer is whining. This generally means you have a shorted component on the output side of your power supply which is causing the switching transistor to slow down the duty cycle/frequency of pulses going to your transformer. I would suggest you check all the transformer output lines for shorts to ground. You may have a shorted diode or voltage regulator on the output side causing your power supply to malfunction.
Grants Pass TV Repair Well that led me to one shorted surface mount resistor, but the supply still hates me. Have to look deeper another day. All the rails are back up to 700 ish ohms now at least. Thanks for the help, I really would like to learn as much as I can on this.
I'm not sure I've ever seen a resistor short out. Are you sure you diagnosed that correctly?
Grants Pass TV Repair There was a hole blown in it. Big burn spot. Didn't make sense to me either because it was a 242 resistor... I'm about to just consider it dead and try something else.
Just got a free 2012 42" RCA from Craigslist. It will turn on and play great for hours. Then turn it off and it won't turn back on. I unplugged the power cord and reconnected and the remote turned the set on. Tried that again didn't work. Thought maybe a bad cord. But later figured it may be the on part of the sensor is dying. When it plays I can change volume and channels with no problem. Was going to try and manually turn it on but don't see a manual switch. I found that the remote for my 32" Vizio would also change the channels and turn the RCA off, but then have the problem of not wanting to turn back on. So I figured it was not the remote and must be the sensor is intermittently picking up the signal to turn on. What do you think?
Seems that if I turn the RCA TV power cord off/ switch off power surge protector for a while and switch back on the TV will turn on with remote. I just noticed this from a few attempts so not sure if this is coincidence or not. Was not turning on last night after using set. Cut off power cord and this morning plugged back in and the remote turned the TV on. I turned it back off and then the remote would not turn the TV back on. Everything on the remote is functioning except it will not turn on the set after turning off set. After set would not turn back on this morning I cut off power supply and fifteen or twenty minutes later plugged in and the remote turned the TV on again. So seems this is a definite pattern. Any suggestions other than just cutting power cord off after every use?
For now the RCA remote is turning off the TV and after I turn it off it turns right back on with the remote. So maybe this disconnect from power reset it somehow or this is just a temporary condition that will again return to a problem. I will have to wait and see as the remote seems to be operating correctly now.
Nope this thing is doing it again. Remote not wanting to turn on the set but when it does turn on it runs great and the remote works fine. Seems that if I turn off the power supply then plug back in a little light comes on the sensor. Sometimes the set will turn back on with the remote after doing this and the sensor light will go out. Sometimes the light just goes off the sensor when I punch the remote power button and the set does not come on. Sometimes after playing the set and turning it off I can turn it on with the remote. Other times I can not. Thinking maybe I need to take the back off the set and try cleaning the IR sensor. Anybody have this problem or know what causes it?
I have an Oculus quest VR headset which uses cameras to observe infrared light being emitted from the controls for hand positioning and that got me thinking. Is the infrared sensor inside of TVs also a digital camera? And if not then how does it observe the light?
I know the IR sensor isn't a camera, but here's a video you may find of interest. czcams.com/video/rj61eiJbDdU/video.html
You mean you can use other IR sensors from other TV sets? I'm trying to find an IR sensor replacement board for Vizio 3642-0132-0189 and no one has it in stock. So can I just use another IR sensor component replacement and desolder the old one with that one and it will work? Thanks in advance.
I've done so on many occasions without any problems. They are polarity dependent, so make sure you pay attention to the plus and minus.
Thanks, I appreciate the help.
@@GrantsPassTVRepair One other question. I heard that small transister sometimes needs to be replaced. Have you ever had to do that? Or is it usually just the IR sensor that is faulty? I just ordered a Visio Repair kit that is identical to the one my Tv has, even though it's from a slightly different model. The picture for both at shopJimmy's site shows the exact same one, but it also comes with a transister in case it might be that.
It's been my experience that it's usually just the sensor that needs to be replaced.@@garyseven2308
Hi again i liked your video as I am back checking my ir sensor. i have checked voltage across the sensor and there is no real change. when i
press the remote. It is a vestel power supply and main board 17MB08. Just not sure if any sensor will do.please advise
The sensor is called an Infrared detector and it has a positive and negative side, so when you replace it make sure you get the polarity correct. As far as being interchangeable I don't know.
What is the usual voltage sent through those sensors?
+Beau Michna I seem to remember the voltage was 5 volts until you press the buttons on your remote control while pointing it at the Detector.. This causes the voltage to drop substantially on one of the pins. Sometimes even a bad IR Detector with show a small voltage drop but it may not be enough to work properly. When in doubt try a new one.
+Grants Pass TV Repair Ok thanks
I did a factory reset on a Roku JVC tv and the remote won’t pair. It’s not the remote because I tried different remotes turned the tv on and off etc. The remote was working fine before I did the factory reset. The remote will only turn the tv on and off but won’t pair. Could that be the IR sensor. Thanks.
I can't really guess at something like this, but since you said the problem started after the factory reset, it makes me wonder.
Yea I was thinking the same. Maybe the factory reset maybe messed up the TV’s computer. I checked the ROKU website and I’m not the only one who had this problem which nobody can seem to fix.
Good morning! I checked my remote control with the camera and it was working fine. My Tv remote sensor stopped working after using Note 3 Peel remote. Can you tell me what caused it?
I don't fully understand your question, but Perhaps it's an issue with what I showed in this video.
Grants Pass TV Repair
My TV remote sensor stopped working after I used the app from the phone.
I have never heard of this happening. I'm not even sure that's possibly related.
Grants Pass TV Repair
Thank you for the reply. Whenever my TV remote sensor comes to life and as soon as I use my cell remote controller it stop working again. It has happened so many times. I was not sure before yesterday when I again used my cell. It was working fine with the original remote.
That's a mystery beyond my knowledge.
I have lg 40 inches the sensor is not working
Can i change ir sensor with another even if it's not lg?
I've swapped the sensors often with no problems, but just make sure you get the polarity correct, or they it will not work.
can you send me some idea for my samsung smart tv remote does not engae with tv replace the remote with new sensor joy stick is bad need to replace it sensor board model is Samsung model un65f100afxa. i would greatly appreicate
Most of what I know is in this video.
Hi,
I have Samsung LCD connected to setup box of GTPL
When I increase the volume by TV remote control it automatically decreases after some time.
I don't understand where is the problem so please suggest me what's wrong with my TV.
Thank you.
A problem such as you describe is often times due to a bad tactile switch that turns down the volume. Once you set your TV volume to the desired level, you can try disconnecting the board that contains all the tactile switches for your volume, channel select and other buttons, and see if the problem goes away. If it does there is a good chance one of your switches has become leaky. Sometimes it's the switch board itself that may have the problem, What can be strange about leaky switches is that I haven't always been able to detect their unwanted conductivity issue with my ohmmeter, but replacing one or Two of them has often solved the problem.
Grants Pass TV Repair
Thank you so much 😊
hey bro , my remote is not working , the light is blinking on the remote, but still no reaction on the tv, if i use an other remote the tv functions very well, the problem is in the remote, any idea how to fix it ? thank u
Is it the IR light that is blinking, or the red LED on the face of the remote?
Where we can buy this item, is this thing is available in any electronic store?
I see them being sold on ebay under IR sensor.
Hello Buddy, my question is: how to differentiate between my remote being the problem or my TV infrared receiver being the problem..?
I have opened the remote, cleaned it, replaced the batteries, tested it using my cell phone and discovered that only 80% of the buttons work on the remote. That said, when I power-up the TV using the side keys placed on the actual unit itself and then try to get a response using the remote, it's totally unresponsive! Do all the remote buttons need to work for it to be able to control my TV or is this a clear case of the problem being my actual TV receiver? I look forward to your reply, thank you.
(Telefunken tledd-32fhdb)
I've seen situations where only a few buttons on the remote work, so it's possible that the problem is the IR sensor on the TV, but I would suggest you buy a universal programable remote control, and see if you can get that to work. If it does naturally you can assume the problem isn't in the TV.
Some while ago i remove a black sticker infront of the sensor and its not responding to my remote anymore whats that sticker called ?
+PLS EUW There should not be anything in front of the sensor that I've ever heard of or seen.
+Grants Pass TV Repair I just talked with the support for the TV and they said that somethings wrong with the sensor and that i need to send it back for repairs. Is there a way to turn the TV on without the remote (No actual buttons on the TV itself). Thanks!
Are you sure there are no buttons on the TV? Sometimes they are well hidden under the face of the display or on the side in places you would not expect to find them.
Theres no buttons on the TV i even asked the support and the model i have does not have any.
In that case it sounds like repairing your remote is a must. Sorry but I don't know of any tricks to make the TV come on if your remote control sensor is bad.
Why does a camera pick up the infrared light?
+mrsemifixit Yes it does. That's why your able to see it in this video
@@GrantsPassTVRepair Pardon me, but the question asked was, "Why does a camera pick up the infrared light?" The question was, "Why?"
@@jakeornot6306 It's because the camera is able to see frequencies the human eyes can't see, and it turns them into frequencies we can see.
Grants Pass isn't going to click with most viewers to determine if your local. I would make it Grants Pass, OR if you can change your name. Nice video though, thanks. I did not realize I would need a camera to see the light. I trashed a remote control seller and now realize I might be wrong and it's the tv.
Thanks for the tip, but changing it at this time may not be wise.
hallow sIR, MYS ISSUE IS REG. ONIDA MAKE ( INDIA) 4k sMART tv NOT RESPONDING TO REMOTE.... LAST EVENING THERE WAS A GENERAL POWER OFF. AND WHEN POWER RESTORED TV STOPPED RESPONDING TO REMOTE CONT. ....MANUALLY, ON PANEL "ON" BUTTON WORKS. ( ON /OFF MANUALLY WORKS) TV GETS ON WITH ANDROID ICONS, WI-FI ON IS SHOWN, DATE AND TIME IS UPDATED. BUT CHANNELS UP AND DOWN BUTTONS DO NOT WORK.HOWEVER SOUND + AND - BUTTONS WORK. IS THIS A SERIOUS PROBLEM. tHE MODEL IS: ONIDA 43 UIB1
I can see the infrared in my remote without using a camera though. Is that normal?
Yes. You can't see it without a camera or an IR detector strip.
Grants Pass TV Repair but I can see the flickering red light😅
i can see it too without the use of camera
Is that tv I.r works as secret camera ?????
The IR sensor can not work as a camera.
a am radio also will detect a remote
+DENNIS N I did not know that, good one.
+DENNIS N That seems hard to believe, but I tried it with the AM radio tuned to a blank station. The static sounded the same with or without the remote active.
KludgeCraft
Is it true or false claim.
marian r
I tried it, it worked.
no but you can see if its dead or alive
no way to detect the signal withouy special ir receiver
Good morning sir mere led me remote kam nahi kar raha hai aur usme 4 pin ka sensar laga hai mai ek karigar hu upay bataiye
App sensor ko apni bund mai dal kar test karo. Zaroor kaam karey ga
Are sensors universal?
I just fixed my jvc em32t tv that the remote control stopped to work , I thought my remote was bad, but by doing the camera test found out remote was not the issue then i decided to replace the ir sensor on the board on the tv with a sensor that i had in another board in my scrap and now remote control works on the tv.
Sir mera TV automatically apne aap hi operate ho raha hai like apne aap hi voice km ho rahi hai apne aap hi brightness km ho rahi hai
Mate what do you mean
Do you think I can change this...to fix my tv it’s gonna cost HALF of what the tv cost-EXPENSIVE!
I don't know your abilities so I don't know, but as long as you don't damage anything on your TV it can't hurt to try.
Thanks for video. This happened to my massive 65 inch sony bravia tv... i just cancelled insurance last month. Well i think its the case. When it DID work - if i pointed my remote in 30+ degrees away from the tv it didnt work... now my remote wont work at all and i can see that the infrared is working.
how am I meant to move a 65inch tv to a repair shop... gona see if anyone will come out lol
UPDATE. I've resettled the TV. Yea it's the IR sensor... So I hooked my ps4 controller up to TV to cycle to the main menu and once I got my WiFi all setup again now I can use my phone as a remote... So I don't know whether I'll fix it 😅
I have an air conditioner that won't respond to remote control till the remote controller is brought very close to the sensor, almost touching it. I'm sure the remote controller is fine, but the air conditioner only responds to it when it is very close. Please what could be the problem? Is the receiver weak or what?