plz help, 42 inch philips lcd, making chirping noise when plugged in....

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  • havinahardtime
    New Member
    • Dec 2012
    • 3
    • United States
    #1

    plz help, 42 inch philips lcd, making chirping noise when plugged in....

    I am new to all of this and only carry a basic knowledge of electronics, i need help, please you guys are like genuises. So i have a 42 inch philips lcd tv that when plugged in makes a chirping sound from the left rear of tv (facing back of tv) and when i unplug it it kinda dies away it doesnt just stop immediately, anyways i tried to take the back off but apparently its attached to the base and i need a allen key, which i dont have so i cant post pics yet but i was hoping for some insight into what it could possibly be, over the past few weeks its been kinda turning on and off when it feels like it and then it just died, i dont have any power light or any light that i can see at all for that matter, please help!
    Tags: None
    • ryan74
      Badcaps Veteran
      • Oct 2012
      • 471
      • usa
      #2
      Re: plz help, 42 inch philips lcd, making chirping noise when plugged in....

      I think you may need a star screwdriver not an allen.
      model# and pics help.
      when you get the back off look over power supply board for bulged capacitors, they are bad.
      not all bad cap are bulged but it is a good place to start. I fixed a similar tv with just caps and it works fine. If you research problems with the tv usually its bad capacitors, diodes and/or mosfets in the power supply(depending on the model).
      search the forum for your model you should find something.

      As for me, I am no genius, but some of the guys here are and they give excelent help.

        Comment

        • havinahardtime
          New Member
          • Dec 2012
          • 3
          • United States
          #3
          Re: plz help, 42 inch philips lcd, making chirping noise when plugged in....

          it very may well be a star that i need, this tv is pissing me off, lol. i know the people on here are very good at what they do.the tv model # is 42PFL5432D/37
          As soon as i can figure out a way to get the back of the tv off i will put up pics, how much are these items to purchase to make a repair, better yet, since it makes the chirping noise, determining the exact location when the back of tv is off should not be difficult, correct? couldnt i just throw it in the back seat and go to an electronic repair store and ask them to have a looksie? im no slouch when it comes to basic knowledge and quick learning, but i just dont even know how to test or analyze or what to use to do it. i just want my tv back!!

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: plz help, 42 inch philips lcd, making chirping noise when plugged in....

              It is a Torx driver you need, most hardware stores sell them.
              Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
              For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                Comment

                • havinahardtime
                  New Member
                  • Dec 2012
                  • 3
                  • United States
                  #5
                  Re: plz help, 42 inch philips lcd, making chirping noise when plugged in....

                  thank you for that, i will find one and purchase it, i just spoke at length with tv repair shops across city, they all want around 200 to fix and want 100 just to look at it, not cool.

                  if i get parts as we go along, can you guys help me fix it? I have basic tools, i even have soldering gun and solder.

                    Comment

                    • gilly1984
                      Badcaps Veteran
                      • Jun 2012
                      • 751
                      • UK
                      #6
                      Re: plz help, 42 inch philips lcd, making chirping noise when plugged in....

                      Yes, they are great on here.
                      Do NOT touch heatsinks when testing for voltages as they may be LIVE!

                        Comment

                        • ryan74
                          Badcaps Veteran
                          • Oct 2012
                          • 471
                          • usa
                          #7
                          Re: plz help, 42 inch philips lcd, making chirping noise when plugged in....

                          The chirp is probly from the large transformer but it is probly good.
                          If you have bad caps you can buy this to try instead of looking each one up. You pay more but save time if your an amateur like me. I have used this seller and this kit.

                          http://www.ebay.com/itm/230795863406...84.m1439.l2649

                          Otherwise there are repair services on ebay for about $100 if you send them your board.
                          Last edited by ryan74; 12-07-2012, 09:38 AM.

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