Philips 55PUS6262/12 always ON but no picture

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  • tandkramstub
    replied
    Re: Philips 55PUS6262/12 always ON but no picture

    Originally posted by trunks81
    there is an bigger sticker on the tv with also the type and chasis number so i can look up the service manual for u
    These are the ones I've found, hope it helps
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    • tandkramstub
      replied
      Re: Philips 55PUS6262/12 always ON but no picture

      Right, I've finally been able to measure a bit more and taken some pictures as well.
      I've focused on the black connector on the PS board which goes directly to the main board.
      The results are like this:
      Left row:
      On/Off: 3,25V
      NC: 2,95V
      GND: has contact with chassis
      GND: has contact with chassis
      +12V_A: 12,0V
      +12V: 12,0V
      +12V: 12,0V
      +3,5V: 0V

      Right row:
      DIM: 2,4V
      PS_ON: 3,0V
      GND: has contact with chassis
      GND: has contact with chassis
      +12V_A: 12,0V
      +12V: 12,0V
      +12V: 12,0V
      +3,5V: 0V
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      • trunks81
        replied
        Re: Philips 55PUS6262/12 always ON but no picture

        Originally posted by tandkramstub
        Hm I have a serial number if that helps?
        there is an bigger sticker on the tv with also the type and chasis number so i can look up the service manual for u

          Leave a comment:

        • dick_barton
          replied
          Re: Philips 55PUS6262/12 always ON but no picture

          A good starting point is to give the voltage readings of the two connectors. Remember there are two rows of pins. Give the connector name then the pin number, pin name, voltage read.
          Some pictures of your boards would also be useful.
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          Last edited by dick_barton; 08-29-2020, 03:08 PM.

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          • tandkramstub
            replied
            Re: Philips 55PUS6262/12 always ON but no picture

            Originally posted by trunks81
            What is the chasis number of this type ?
            Hm I have a serial number if that helps?
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            • yokoono
              replied
              Re: Philips 55PUS6262/12 always ON but no picture

              Pin for activating p.s. is ps_on. Put there + 5v (max.).

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              • trunks81
                replied
                Re: Philips 55PUS6262/12 always ON but no picture

                What is the chasis number of this type ?

                  Leave a comment:

                • tandkramstub
                  started a topic Philips 55PUS6262/12 always ON but no picture

                  Philips 55PUS6262/12 always ON but no picture

                  Hello!
                  So I was given a broken LED-TV with some unusual issues.
                  When I plug it in, it turns on and stays on, and does not respond at all.
                  The red standby light never comes on, it just switches on the backlight LED's and just stays that way.

                  The mainboard has a couple of green LED's that comes on and stays on, and I can't visually see any swollen or burnt components anywhere.

                  I replaced the T-con board to no awail and now I have started measuring voltages, but electronics on this level is above my knowledge.

                  The only clue I have is when I measure the voltages on the connector for the mainboard on the PSU-board, I am missing the 3,5V on both of the lower pins in the black connector in the pic below. I've tried applying 3,3V via an external power supply, but no change.

                  Any ideas?
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