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My Visio razor 47 in LED lost its picture and only stays black while power is on. It won't display the inputs or anything on the screen. I have tried powering off and on again, unplugging the tv

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It is likely that the internal power supply has failed

Posted on Mar 09, 2013

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Posted on Jan 02, 2017

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Anonymous

SOURCE: Black screen after 5 minutes of use with Fujitsu PDS-420 plasma

most of the time, when the power light stay green, thr filter capacitors in the power supply have lost value, & need replacing.
When the power light turns red it indicates loss of signal. This could be the same problem except the input signal has been lost. Try replacing power supp;y caps , about 4 of them.
Works 90% of the time. Hobby of mine, Art

Posted on Dec 29, 2007

B52Tony

Tony Nguyen

  • 96 Answers

SOURCE: vizio 47" lcd no picture no sound has power

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

Anonymous

  • 1139 Answers

SOURCE: SV470XVT Vizio picture freezes

Hello, This seems more like an interface problem then a board issue. Which interface are you using Component Video, HDMI or , RF(F Connector)? If you are using the RF (F Connector) there might be a problem in the tuner including the RF and IF sections on the circuit board. If you are using HDMI there might be a problem in the HDMI Integrated Circuit If you are using componente video the there might be a problem in the video circuits connected to the RCA jacks of the Component video input. If I were you I would have the take the TV back to the shop and have these items checked out, because board swapping is not the proper thing to do. I hope this helps, Thank you, Shuttle83 http://www.electron-age-technologies-llc.com

Posted on Jun 14, 2009

Anonymous

  • 1 Answer

SOURCE: 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.

Posted on Jun 23, 2009

Anonymous

  • 92 Answers

SOURCE: westinghouse 30" lcd tv has no sound no picture,but green lighton

Replace the Power Supply.

Posted on Sep 06, 2009

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Sorry to inform you my freind, but the main board has to be replaced in this beast. Could get expensive. there are no schematics and or componets listed to repair this module. Its a board level repair only. Try going to ptscorp.com, find their phone number, and see if they repair these boards. if not you will need to contact the manufacturer for replacement boards. good Luck Please do not forget to rate this thread.,

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