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Samsung LED Smart TV UN32D5500 ON-OFF issue

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Joined: 12 Apr 18
24 April 2018 14:29 Reply (Quote this message)

you plug the tv, tv turns on, samsung logo comes up, then tv turns off by itself and then turns on again and back to the on -off loop, dont see any buldge capacitor as is mentioned in some forums. I also measured some voltages +5v and +12v from the conector to the main board, and those voltages change on and off following the loop mentioned. if the power supply is disconected from the main board, these +5v and +12v are steady even with the backlight conected in which case the screens turns on , but as soon i connect the cable to the main board, the voltages go up and down again?

Please help.

I didn't find the right solution from the Internet.

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