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47 inch bauhn lcd tv. Blue light stays on and no picture.

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Posted on Jan 02, 2017

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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

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Jan 18, 2016 | JVC Televison & Video

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Sceptre 32 inch, Blue LED light comes on but no picture or sound.


The internal power supply is failing. You are having to "shock" it into operation by plugging and unplugging.

Jan 01, 2014 | Sceptre X32BV-Naga 32 in. LCD TV

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My 47" Vizio is darker on the left side. Used to be I would turn it on and once the TV was warmed up the picture would be perfect. Then one day it just stayed darker on the left. Everything else works


More than likely you have a bad LCD panel tab. The only true fix is the replace the panel. There are companies who will repair the tab but the cost of repairing the tab, and replacing the panel will exceed the cost of a new TV set. There are youtube videos of fixes but you will have to take the entire set apart.

Apr 08, 2013 | Vizio VO47L 47 in. LCD TV

2 Answers

No picture or sound just blue pwr light on apex 40 inch LCD what's going on?


first place to begin is if able test voltages in and out of the power board inside the set---if not able to do that consider having a shop look at it.

If you get it open:



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8_27_2012_9_13_04_pm.jpg

Aug 26, 2012 | Apex Digital LD4088 LCD TV

1 Answer

The blue light is blinking under the power button & there is a red light that stays on right above it


I have a tv like yours but 47 inch, I had to replace the power supply to fix this problem

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No backlights


The T-Con board is dead.This board sit right in the middle in the bottom of the LCD screen panel.This board is dead,require replacement.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish T-Con board for the replacement.

May 24, 2010 | Toshiba REGZA 47HL167 TV

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47" Philips LCD TV will not stay on and show a picture.


Your mainboard needs to be replaced.

You can get one on ebay and replace it or get someone who can do that for you.

if you still have guarantee, it is covered, if not you will need to buy it.

May 27, 2009 | Philips 47PFL7422D/37 Television

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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.

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1 Answer

Stand by light stays on only black screen


mainboard damaged.

replace the mainboard and that should solve your problem.

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