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Sony KDL-32R410B Shows up logo , then blinking red light

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    #1

    Sony KDL-32R410B Shows up logo , then blinking red light

    Okay ,so i got this TV , immediately assuming that there is a problem with power supply ... Tried another power brick with 19v and 20V (TV is rated at 19.5v) Still nothing. Replaced All 3 caps inside the TV. Under 1 cap i found some type of liquid ... It resembled water more than anything. I see no green on inside or anything like that , Might be a fresh spill of water but im not sure.
    Anyways i replaced all caps , tried different psu's and still nothing. Is it a software problem maybe?
    Also , the exact thing that happens when turned on is this>
    I press power button , backlight comes on , sony logo and then off . Stays on green light , sony logo then off . And the last time it just starts blinking red.

    Anybody know anything about these TV's?
    Tags: None
    #2
    Re: Sony KDL-32R410B Shows up logo , then blinking red light

    Im getting 6 blinks of red light , which in the manual it says it is a backlight issue? , backlight does come on , but after a second or 2 it shuts off. Could it be that one of the leds are gone and its trying to protect itself? It has 4 cables going to Backlight so i know its not connected in series. That could be my problem. but before i open the TV i wanna see what yall think.

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      #3
      Re: Sony KDL-32R410B Shows up logo , then blinking red light

      What voltages do you have on the led connector pins as you switch on and do they drop low.
      Do you have photo's?
      Willing to help but I'm no expert.

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        #4
        Re: Sony KDL-32R410B Shows up logo , then blinking red light

        Voltage on Led connecter is 19.5v ... kinda hard to take a picture because im in the process of opening the TV to get to LEDs. you want the picture of the mainboard? Voltage drop is around 0.2v ... It probably has some sort of buck converter inside to step up the voltage.
        Last edited by sigmeyer; 09-30-2020, 10:06 AM.

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          #5
          Re: Sony KDL-32R410B Shows up logo , then blinking red light

          fixed , one strip of leds was shot . i replaced the led with hot air from behind the PCB .. Worked well. We'll see how long its gonna last for ... All that heat stress on LED cant be good

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            #6
            Re: Sony KDL-32R410B Shows up logo , then blinking red light

            One less for the recycle bin.
            Willing to help but I'm no expert.

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              #7
              Re: Sony KDL-32R410B Shows up logo , then blinking red light

              Good job, make sure to turn down the backlights level to as low as possible on all inputs.
              Never stop learning
              Basic LCD TV and Monitor troubleshooting guides.
              http://www.badcaps.net/forum/showthr...956#post305956

              Voltage Regulator (LDO) testing:
              http://www.badcaps.net/forum/showthr...999#post300999

              Inverter testing using old CFL:
              http://www.badcaps.net/forum/showthr...er+testing+cfl

              Tear down pictures : Hit the ">" Show Albums and stories" on the left side
              http://s807.photobucket.com/user/budm/library/

              TV Factory reset codes listing:
              http://www.badcaps.net/forum/showthread.php?t=24809

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