Question about Vizio VO47L 47 in. LCD TV

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Vizio 47" lcd no picture no sound has power

Picture lost sound lost as if tv was shut off but power light stayed on. cannot shut off tv without unplugging at power source. vizio 47" lcd

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  • swp4657 May 24, 2009

    I just had the exact same thing happen to my 47 inch VIZIO. I purchased it 17 months ago.

  • brenarmj May 29, 2009

    Thanks fix ya!!! I appreciate the information. Between b52Tony directing me to the mother board and vce4kfcc, i fixed my problem for 4 bucks. The small fuses on the mother board are labeled f1-f4, f4 not being used. f3 fuse was blown. replaced it and my lcd is back in business. I am one happy camper!!!!

  • brenarmj May 29, 2009

    Thanks fix ya!!! I appreciate the information. Between b52Tony directing me to the mother board and vce4kfcc, i fixed my problem for 4 bucks. The small fuses on the mother board are labeled f1-f4, f4 not being used. f3 fuse was blown. replaced it and my lcd is back in business. I am one happy camper!!!!

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This could be one of two problem. first, check if you have back light. If you do then the problem is with the M/B. Second, if you don't have back light then the inverter is bad and needs to be replace.

Posted on May 20, 2009

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No picture or sound, light comes on in the front and have to unplug tv to turn it off.


I had this exact problem on my Vizio 47" HDTV. I removed the speakers and all the screws on the back cover. Took the cover off and located the fuses on the largest circuit board. The are in the upper right hand corner of the board. There are 3 of them in a row labeled LF 1.5, LF 3.0 and LF 3.0. The are white in color with copper ends. I took a volt meter and measured continuity across all fuses individually and found the LF 1.5 to be blown. The guy at the electronics store sold me a barrel 1.5A fuse and told me to soldier it across the top of the blown fuse. It took an extra set of hands but the TV works perfectly.

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