TV Red LED Flashed (No Startup)

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  • mrdiy88
    Senior Member
    • Nov 2017
    • 59
    • United Kingdom
    #1

    TV Red LED Flashed (No Startup)

    Hi Guys,

    I am currently looking at a 32" Poloroid P32LED12 TV for a neighbour. He is a heavy smoker so please excuse the yellowing.

    I have tested the outputs of the PSU and getting good readings although there is no legend on the power board.

    I have noticed that when I remove the cable going to the main board The LEDs all light and stay stable. When I put the cable going to the main board back in, the led lights all go out and the red standby led flashes continuously.

    The TV won't come on but the touch power button registers a beep.

    Do you guys have any ideas? I have replaced the output diodes as some reading were quite low but this has not fixed my issue.
    Attached Files
    Last edited by mrdiy88; 03-24-2018, 11:08 AM.
    Tags: None
    • mrdiy88
      Senior Member
      • Nov 2017
      • 59
      • United Kingdom
      #2
      Re: TV Red LED Flashed (No Startup)

      Sorry I meant to write the model number in the thread title. It's Poloroid P32LED12 and board pics attached. Thread title should read Red LED flashes continuously. Cheers

        Comment

        • mrdiy88
          Senior Member
          • Nov 2017
          • 59
          • United Kingdom
          #3
          UPDATE: TV Red LED Flashed (No Startup)

          Ok I was testing some voltages of the caps on the hot side and heared a funny static like sound or frequency sound.

          I then tried to turn the TV on and it now starts up!! The red led flashed 11 times during start up and goes out when TV comes on.

          Then when I press the power off button the TV goes off as expected and then the red led flashes again for 11 times and then goes the solid red to let you know it's in standby.

          Now I may have been silly here. After replacing the shottkey diodes (D223, D224, D226, D229) I may not have pushed the correct power button as the tv is on screen side down on the workbench.

          So I guess the diodes sorted it (Time will tell)

          I also have checked against my working Poloroid TV in the bedroom and I can confirm it is normal for the Red LED to flash 11 times before coming on and off.

          Thanks guys for all the help on this forum, I love it and look forward to fixing my next TV

            Comment

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