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Crumbtrail TV Forums: TV Equipment: TV Repair Forum:
Samsung model#: un55ju6400fxza, No pic, no sound, just buzzing

 

 


xfistxflyingx
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Feb 18, 2019, 3:10 AM

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Samsung model#: un55ju6400fxza, No pic, no sound, just buzzing Can't Post

I have a Samsung model#: un55ju6400fxza. Version#: fd05. When plugged in I get a red power light, but no picture and an electrical buzz from the rear. I opened the back and located the buzz coming from the power supply board, specifically from the silver heat sink looking block on the top left. When I disconnect the ribbon cable to the main board, buzzing stops and backlight/screen comes on. Is this issue with my mainboard or power supply board? I see no swollen capacitors or signs of issues. Thanks in advance for your advice.


 
 
 


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