Question about Sony BRAVIA KDL-55BX520 55" Class 1080p LCD HDTV

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Sony Bravia KDL-55BX520 HDMI ports won't work but the A/Vports t

HDMI ports will not work but the A/V #2 will. When on Both HDMI ports a message in bottom right corner will say something about no signal an something about the connection. The cords are all good. Is it the circuit board that the ports are all on Bad ??? Need new Board ????

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  • Duane C
    Duane C Jul 22, 2015

    I bought a new HDMI Cable and still nothing. There was a recent lightning strike an also knocked out the Modem/Router for the Internet. Sonys website says there is No Firmware Updates for this TV. So maybe its the Board then but there is 5 diff boards in this TV.

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  • 76,171 Answers

Either the HDM firmware or the circuit board will be faulty. Connect it with an other known good HDMI cable, and make sure that the fault is not with the connecting cable.
http://electronicshelponline.blogspot.com/

Posted on Jul 22, 2015

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6ya6ya

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Posted on Jan 02, 2017

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