Question about Philips 47PFL3603D LCD TV

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Philips 47PFL3603D LCD TV - TV not responding to remote

This is alsmost identical to my problem, only variable change is i have Comcast neither remote will get the unit to turn on or anything. The white led in the lower left corner is lit but doesnt react when any button on either remote is pressed. I have done all the basics verified the battery position and even unplugged he unit for 60+ seconds....no change in state. I also verified that i have the lastest software
LC8IULP-1.15

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  • wirkinman123 Aug 05, 2013

    I have the same problem as the original poter. However, on my Magnavox 52MF437S/37, When the tv stops responding to the remote functions, the buttons on the side of the tv dont operate either. When this happens, I unplug the tv and replug it. Everything is back to normal.

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One thing you can do is take your cellphone's camera, point the remote at the camera, and press a button. You should be able to see the infrared sensor firing.

If you can verify that, your remote's fine.

In this case, what you have is a bad IR sensor board. The part # is:
313926859182. Right now, there are so many of these things failing, that finding the original might be difficult.

Don't fear, though; it's a small part. And, best of all, it's cheap. Expect to pay around $5.00 for the part, maybe a bit more, maybe less, depending on the supplier.

Now, if you are handy with a power drill (fitted with an octagon/star bit for the back of your set), you can remove the 20 or so star-bit screws from the back of your television. Don't worry about putting the set on the floor. If your TV is on a stand, simply turn it around. You'll need to remove the stand screws, but you won't need to take the TV off of the stand.

Now that you've taken the screws out and removed the back cover, look in the lower left hand area of your set. You'll see a 4 inch long circuit board with 2 cables running to it. Pull the cables out (they'll come out easy). Remove the 2 star-bit screws.

One of the board's sides is under a plastic tab. Lift the board out of its slot from the other side.

Put your new board in, reconnect the two cables, reassemble the back and you are set to go.

Expensive repair for a few bucks and a better IR sensor.

*****************************************************************

This advice assumes that the control buttons (power, volume, channel) located on the side of the set still function. It also assumes you are able to use those buttons to power on the set and verify that you still have a picture on the screen.

Posted on Aug 02, 2009

  • 4 more comments 
  • Bob McAnally Jan 19, 2012

    Kudos to the gang at FixYa for a wonderful site. This fix for my Philips TV was spot-on and cheap. Only snag I had was trying to get the plugs detatched from the board, as I did not want to tug on the wires, so I used a razor blade to pry them out while trying not to nick the wires. With that accomplished, the rest was really easy. Final tally...$20 and 2 1/2 hrs. labor. Thanks again to FixYa!

  • John Jun 03, 2012

    I also had the same problem with my IR sensor board 313926859182.

    I was also recommended before buying the new part to try to alter the old IR board by scraping off the capacitor sticking out just to the right of the connectors leading up to the power/volume controls on the TV. The rationale is, if I am going to replace the part anyway, why not try to mess with it?

    Funny enough, scraping off the capacitor worked perfect, now I saved myself $20 and have a working remote control now.

  • christi87807
    christi87807 Oct 12, 2012

    @Drannor68, was the capacitor small and black, like a little capsule? I removed it from nine and now the LED power indicator doesn't work. Nothing else has changed.

  • Brad Davis
    Brad Davis Mar 01, 2014

    I am amazed that this worked! I scrapped off the cap....and it works!

  • Bkpman
    Bkpman Jul 20, 2014

    Me too it works

  • Bkpman
    Bkpman Jul 20, 2014

    I'm posting the photo of the lil capacitor I plucked off with a plier .... I can't believe my TV remote works after four flipping years

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I also had the same problem with my IR sensor board 313926859182.


I was also recommended before buying the new part to try to alter the old IR board by scraping off the capacitor sticking out just to the right of the connectors leading up to the power/volume controls on the TV. The rationale is, if I am going to replace the part anyway, why not try to mess with it?


Funny enough, scraping off the capacitor worked perfect, now I saved myself $20 and have a working remote control now.

Posted on Jun 03, 2012

  • Stephanie M Feb 09, 2014

    I am so happy I found this information. Thank you so much for providing the part number and instructions. I bought the part and followed the instructions exactly (except I didn't have a drill - very aggravating). My boyfriend and I worked on it together and now our remote is working! (after four years of not being able to use it) The repairman wanted about $150 to fix it - no way, did it ourselves thanks to your help!

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