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My Sony Bravia KDL-46V5100 will not turn on. No red light bottom left corner

Have the back panel off. Want to check voltage to see if logic board is bad. Watched a you tube on fixing Sony Bravia. He checked voltage and voltage was 3.3 volts. He replaced the logic board. The model he had was older the mine. After pulling off the back panel mine does't anything like the one he worked on. Don't know where to check for voltage.

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Look in the circuit board area where the power cord mates with it for capacitors that have bulging tops (instead of the flat tops that are normal). If you see even one, you need to replace all the large capacitors othe power supply section (normally around 5 or 6).

Posted on Dec 08, 2014

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Posted on Jan 02, 2017

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Sony Bravia KDL-xbr4 Replaced TCON board All worked great for a week Had an issue w/ HDMI cable at the box fixed it and now tv comes and the goes off to 6 blinking red lights


6 red flashes- backlight issue, bad main board, or power board or inverter boards- check standby volts on power board. "backlight on" volts should be 3-5v from main logic board then 24v to inverter


Have this from a youtube link find BUT
Better is to look first also on bad leaking or bulged capacitors thats better to replace in the bad components to get a repair because active components died on bad capacitors but after a while because on the build-in protection circuit by faults like deformed or leaking capacitors and even several fuse resistors then after replace a complete board again after a while you will may be get the same kind of problems again, take If you find some or much bad capacitors replacements 10 volts dc higher . begin with control on the power supply first of all.



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Below is an image of rear side of your TV, Sony KDL-40W5500
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bd073ee.jpg

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1 Answer

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