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Onn Tv made for Walmart

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    Onn Tv made for Walmart

    I have a model ONC18TV001 made for Walmart. I was hoping maybe someone has a schematic or can help me with an IC part number. The LED driver IC has failed. I cannot read the marking on the IC. Looks like a 10 pin msop package. Thank you.

    #2
    Re: Onn Tv made for Walmart

    You need to attach some clear, in focus pictures of the board, it is likely used in other makes/models.

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      #3
      Re: Onn Tv made for Walmart

      Yes i will do that. Thank you.

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        #4
        Re: Onn Tv made for Walmart

        Here are some pix as promised.
        Attached Files

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          #5
          Re: Onn Tv made for Walmart

          Are you sure the ic is bad and not bad led's in the panel? Try using some alcohol to clean the top of the ic. you should be able to read the number.
          Last edited by R_J; 05-13-2021, 06:40 PM.

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            #6
            Re: Onn Tv made for Walmart

            It looks like there is sime sort of varnish on the top of it that would need to be cleaned off. Sometimes using a bright torch light shone at an angle on the IC can help you read what is written on it.
            Willing to help but I'm no expert.

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              #7
              Re: Onn Tv made for Walmart

              Originally posted by sirentech View Post
              I have a model ONC18TV001 made for Walmart. I was hoping maybe someone has a schematic or can help me with an IC part number. The LED driver IC has failed. I cannot read the marking on the IC. Looks like a 10 pin msop package. Thank you.
              https://www.shopjimmy.com/search.php...+led+driver+ic

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                #8
                Re: Onn Tv made for Walmart

                I will try to clean it off. Thank you again. The LED backlights are completely removed and there was a short across an smd diode on the power supply board. I took it out and it tested fine. I traced both sides of the diode as best as possible and it appeared to go back to the LED driver IC.
                I will reply back with my cleaning job.
                Last edited by sirentech; 05-14-2021, 06:21 PM.

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                  #9
                  Re: Onn Tv made for Walmart

                  I managed to clean it off. While it was a bit damp I was able to read the number. It is SN51DP. I will start testing voltages at each pin now that I know the pinout. I will check for pin to pin and pin to ground shorts. Thank you all VERY much.

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                    #10
                    Re: Onn Tv made for Walmart

                    This may be the circuit, or close to it.
                    Attached Files

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                      #11
                      Re: Onn Tv made for Walmart

                      This is the possible pinout for the iC

                      Edit
                      But it doesn't match the information on another site that appears to be as R_J suggests.

                      https://repowebapps.blogspot.com/202...verter-by.html
                      Attached Files
                      Last edited by dick_barton; 05-15-2021, 05:28 AM.
                      Willing to help but I'm no expert.

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