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Sony KDL-46W4100 over voltage protection (3 light blinking)    
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Joined: 19 Apr 2012
Posts: 1
Location: milford

PostPosted: Thu Apr 19, 2012 6:13 am    Post subject: Sony KDL-46W4100 over voltage protection (3 light blinking) Reply with quote

I am in the process of repairing a sony kdl-46w4100, my friend told me he was watching it one day and it just shutoff suddenly. When he tried to turn it on again it was stuck in standby. I took a look and realized that the standby light will flash three times per cycle indication over voltage protection. I pulled off the back cover and took a look inside everything appears to be ok nothing is burnt or popped. I tested some obvious componets with a fluke and it seemed to be fine. I pulled of the power supply board and cleaned off the dust with an aircompressor. I was thinking of just replacing the power supply board. Would this work? Is this even the location of the problem? I am perfectly able to repair this tv on my own a i have a full shop dedicated to electrical repair i just dont work with TVs too often.

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