Question about Samsung LN-S3241D 32 in.LCD HDTV

2 Answers

We have sound but no picture. When the TV is off for a few days sometimes it does come back on with a picture but lasts at most 30 minutes then fades back out. We thought it was the cable box from Verizon but they replaced that and it is still doing it. Right now the TV has been off for days and still no picute back.

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  • 3 more comments 
  • skykid308 Oct 16, 2010

    And exactly where are these screws that I need to get at. How do I get the cover off. I know nothing but these tv's.

  • skykid308 Oct 16, 2010

    Can you please tell me what I need to do to get to these 6 screws you say get loosened. You dont tell me where they are . Do I have to take the back of the tv off, if so there are 9 screws there. ANd are the 6 screws that get loose under that cover??



    Please give me something else to go on. This answer you gave was of no help I know absolutely nothing about these flat lcd screens.

  • skykid308 Oct 16, 2010

    OMG! I do not know where to start with those directions. How much would it cost to take this to a Samung repair place to be fixed???

  • skykid308 Oct 16, 2010

    Is it worth getting it fixed since the TV is 5 years old??? Please advise!!!!!

  • skykid308 Oct 16, 2010

    Ok TY

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2 Answers

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  • Master
  • 1,961 Answers

The problem must be on the backlight lamp.It is a long thin lamp situated at the top and bottom of the display screen.this lamp illuminates the screen when lit.and busted for certain period of time..this needs to be replace.there are instances that the cause of the problem is a simple loose board connection specially from the main power supply board to the inverter board.the inverter board is the that supplies a high voltage to the lamp appriximately 250v ac so be carefull not to touch it with hands when power up.The input voltage of the inverter board is 24vdc the output is 250v ac..The voltage input terminal of the inverter board usually creates a loose solder.use a soldering iron to resolder them....This lamps are available online to order at shoppejimmy.com.
good luck!let me hear if you have further questions please do rate my solution ..

Posted on Oct 17, 2010

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  • Master
  • 712 Answers

It may be the loosening of those six screws beneath the cover. It is common to all LCD TV's. The fix is simple, but time consuming and boring. You should have a lot of patience to do this.

Posted on Oct 16, 2010

  • 1 more comment 
  • Sebin Punnacheril
    Sebin Punnacheril Oct 16, 2010

    This problem is a
    widespread one with LCD TV's. 6 screws that attach the
    inverter board to the LCD gray metal bottom loosen over time, causing the TV to
    periodically lose video while retaining audio. Sometimes turning the TV off and
    on again restores video, sometimes not. The problem gradually gets worse making
    the TV unusable.
    color:black">



    The best solution for most TV owners is to get Customer Service to send someone out to fix this problem free of charge, even if it is just out of warranty, and it
    might take some pressure and a number of calls to get this outcome.




    If you decide to fix the TV yourself, the good news is that there are no parts to buy. The bad news is that disassembling/reassembling the TV is neither easy nor
    quick. The following instructions, however, should help make your
    disassembly/reassembly much easier. I am writing them from
    memory, so don't be surprised if they are not exactly correct or I miss
    something.




    My first advice is to obtain a copy of the Service Manual. The different steps associated in the procedure are:



    1) Stand Assembly

    2) Back Cabinet Assembly

    3) Angle Back Assembly

    4) LCD Cover Assembly

    5) LCD Bottom with Inverter Board



    Disassembly Instructions



    Lay the TV face down on a table covered with soft
    material.




    1) Stand Disassembly



    Remove the 4 screws holding the stand on with a
    hex driver. Remove the stand.




    2) Back Cabinet Disassembly



    Using a #1 Phillips screwdriver (preferably
    magnetized), remove the 16(?) screws around the edge of the back cover. Remove and keep separate the two screws in the center of the back
    cover. Remove and keep separate the screw
    holding the on/off button unit (different size). Lift off and
    remove the back cover.




    3) Angle Back Disassembly


    Next you need to remove angle backs 2 and 1. The
    angle backs are the metal parts that support the stand and run down the middle
    of the TV. Each is labeled with a stamp in its metal. Four 202 screws hold down
    angle back 2. Three 202 screws up top and 2 209 silver-topped screws hold down
    angle back 1. Also in the back two 202s hold angle back 1 in from the side.
    Remove both angle backs.




    4) LCD Cover Disassembly



    We are getting close, but this is the most
    challenging disassembly step. Loosen but don't remove the four 207 screws that
    hold in the side spring clips. Remove the eight 209 silver-topped screws that
    hold the cover down. Remove the 2 screws holding down the on/off button unit
    and remove the unit itself. This exposes a 202 screw coming in from the side.
    Remove it and the 3 other 202 screws coming from the side, 2 on top and 2 on
    the bottom.




    The LCD cover should now be free, but it cannot be
    removed without undoing some connections. Remove or cut the grey tape on the top side middle that seals the cover to the
    LCD. The three wires to the bottom left speaker must be disconnected. Pull out
    the white plug connecter. Slide off the red and blue wires by depressing the
    little metal tab that locks them in. There are two ribbon connections in the
    middle of the LCD cover that also must be disconnected and pushed down through
    the metal in the cover. One requires that you cut the cable tie that
    connects it to a black plastic ring. Pull it off gently. The other is very thin but also pulls off. Now the cover can be lifted
    off and moved about 8 inches to the right.




    5) LCD Bottom with Inverter Board



    Once the LCD cover is removed, on the left side
    you can see the metal cover of the inverter board and the six screws holding it
    down, the very screws that we have been looking for! Remove the six screws and
    the metal cover. Without disconnecting any of its connections, rotate the
    inverter board up and to the left to expose the bottom of the inverter board as
    well as the gray metal bottom of the LCD to which the inverter board is
    attached and grounded. Note the 3 copper rectangles on the bottom of the
    inverter board surrounding the 3 screw holes away from the left edge towards
    the middle of the TV. These are the grounding strips that lose their
    connection.




    Using contact cleaner clean off any black burn marks from these connectors. Also clean all black
    marks from the grey metal bottom that they contact. Clean carefully and
    thoroughly. You might need to scrape lightly to remove all marks.




    Rotate the inverter board back in place. Line up
    the metal inverter board cover. You can either use the 6 existing screws or purchase replacement screws. Using a removable thread locker coat the screw threads of one screw. Tightly screw in the
    middle edge screw first. Follow this by the edge top and bottom screws, then
    the middle inner screw, and finally the top and bottom inner screws, using the
    threadlocker on all 6 screws. Verify that all screws are tight.




    6) Reassembly



    Reassembly is the reverse of disassembly with the
    advantage that you have been there once before. As long as you have kept all
    your parts separated, it should be easier
    and quicker than the disassembly. Remember to reconnect all the connections
    that you disconnected. Use a new cable tie to replace the one I cut. Be sure
    that all screws return to their proper places.




    7) Now you will
    discover that the problem is fixed


    color:black">


    color:black">Cheers. Thank You.

    This problem is a widespread one with LCD TV's. 6 screws that attach the inverter board to the LCD gray metal bottom loosen over time, causing the TV to periodically lose video while retaining audio. Sometimes turning the TV off and on again restores video, sometimes not. The problem gradually gets worse making the TV unusable.

    The best solution for most TV owners is to get Customer Service to send someone out to fix this problem free of charge, even if it is just out of warranty, and it might take some pressure and a number of calls to get this outcome.

    If you decide to fix the TV yourself, the good news is that there are no parts to buy. The bad news is that disassembling/reassembling the TV is neither easy nor quick. The following instructions, however, should help make your disassembly/reassembly much easier. I am writing them from memory, so don't be surprised if they are not exactly correct or I miss something.

    My first advice is to obtain a copy of the Service Manual. The different steps associated in the procedure are:

    1) Stand Assembly
    2) Back Cabinet Assembly
    3) Angle Back Assembly
    4) LCD Cover Assembly
    5) LCD Bottom with Inverter Board

    Disassembly Instructions

    Lay the TV face down on a table covered with soft material.

    1) Stand Disassembly

    Remove the 4 screws holding the stand on with a hex driver. Remove the stand.

    2) Back Cabinet Disassembly

    Using a #1 Phillips screwdriver (preferably magnetized), remove the 16(?) screws around the edge of the back cover. Remove and keep separate the two screws in the center of the back cover. Remove and keep separate the screw holding the on/off button unit (different size). Lift off and remove the back cover.

    3) Angle Back Disassembly

    Next you need to remove angle backs 2 and 1. The angle backs are the metal parts that support the stand and run down the middle of the TV. Each is labeled with a stamp in its metal. Four 202 screws hold down angle back 2. Three 202 screws up top and 2 209 silver-topped screws hold down angle back 1. Also in the back two 202s hold angle back 1 in from the side. Remove both angle backs.

    4) LCD Cover Disassembly

    We are getting close, but this is the most challenging disassembly step. Loosen but don't remove the four 207 screws that hold in the side spring clips. Remove the eight 209 silver-topped screws that hold the cover down. Remove the 2 screws holding down the on/off button unit and remove the unit itself. This exposes a 202 screw coming in from the side. Remove it and the 3 other 202 screws coming from the side, 2 on top and 2 on the bottom.

    The LCD cover should now be free, but it cannot be removed without undoing some connections. Remove or cut the grey tape on the top side middle that seals the cover to the LCD. The three wires to the bottom left speaker must be disconnected. Pull out the white plug connecter. Slide off the red and blue wires by depressing the little metal tab that locks them in. There are two ribbon connections in the middle of the LCD cover that also must be disconnected and pushed down through the metal in the cover. One requires that you cut the cable tie that connects it to a black plastic ring. Pull it off gently. The other is very thin but also pulls off. Now the cover can be lifted off and moved about 8 inches to the right.

    5) LCD Bottom with Inverter Board

    Once the LCD cover is removed, on the left side you can see the metal cover of the inverter board and the six screws holding it down, the very screws that we have been looking for! Remove the six screws and the metal cover. Without disconnecting any of its connections, rotate the inverter board up and to the left to expose the bottom of the inverter board as well as the gray metal bottom of the LCD to which the inverter board is attached and grounded. Note the 3 copper rectangles on the bottom of the inverter board surrounding the 3 screw holes away from the left edge towards the middle of the TV. These are the grounding strips that lose their connection.

    Using contact cleaner clean off any black burn marks from these connectors. Also clean all black marks from the grey metal bottom that they contact. Clean carefully and thoroughly. You might need to scrape lightly to remove all marks.

    Rotate the inverter board back in place. Line up the metal inverter board cover. You can either use the 6 existing screws or purchase replacement screws. Using a removable thread locker coat the screw threads of one screw. Tightly screw in the middle edge screw first. Follow this by the edge top and bottom screws, then the middle inner screw, and finally the top and bottom inner screws, using the threadlocker on all 6 screws. Verify that all screws are tight.

    6) Reassembly

    Reassembly is the reverse of disassembly with the advantage that you have been there once before. As long as you have kept all your parts separated, it should be easier and quicker than the disassembly. Remember to reconnect all the connections that you disconnected. Use a new cable tie to replace the one I cut. Be sure that all screws return to their proper places.

    7) Now you will discover that the problem is fixed



    Cheers. Thank You.

  • Sebin Punnacheril
    Sebin Punnacheril Oct 16, 2010

    The cost may vary due to region variations. The cost in my locality need not be that in yours. Since it need no extra parts, it's cost free from the parts point of view. But the service(labor) cost can be high as it is a time consuming job.

  • Sebin Punnacheril
    Sebin Punnacheril Oct 16, 2010

    If the TV have no other major problems and if it is the first major one in these 5 years, you might consider a repair. Also, you can ask the repairman how much will the repair cost. If it's a heavy charge, better don't go for repair. Also there is no need of repair if the TV had always been "SICK" during these 5 years.

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