Question about Panasonic PT-40LC12 40" Rear Projection HDTV

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Tv has no power when pluged in - Panasonic PT-40LC12 40" Rear Projection HDTV

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Bad power supply or lamp is bad

Posted on Nov 21, 2013

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6ya6ya
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Posted on Jan 02, 2017

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I have a roko 3 how do I get it to work on the tv. Its pluged into the back of tv and a wall plug.


Make sure there are batteries in the remote. Select the proper input on your tv. You should see a roku logo on the screen. Use the remote to power on the Roku box.

Jan 03, 2016 | Televison & Video

1 Answer

When tv is unpluged and pluged back in it wont power on and no lights blinck


Sure the plug is getting power from wall outlet? If power is there you might want to check out the power supply board first for issues.

Oct 13, 2015 | Televison & Video

1 Answer

Tv won't power up when pluged in


Replace the power supply you can get one from www.tvcircuitboards.com

Mar 05, 2012 | Proscan 32LA30Q Television

1 Answer

Soon as the tv is pluged in the red light in the bottom right corner starts blinking RED and NO picture or sound on the screen ,I have unpluged the tv and pluged it back and also to a different receptical...


Ur tv have a power supply board problems,it dead.That the board where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.Or the tv shop,will cost u like half of the price of the new tv to repair it.

Apr 23, 2011 | Televison & Video

1 Answer

Unpluged 37in sceptre tv and 15 min later pluged back in red on off lite no lit tv expert said leave un pluged 4o min then try did no responce is there a fuse? anyway no tv


Yes there are fuses, but if you have led lighting up then it's not the main fuse, Why was tv unplugged in the first place, did you have problems before with set? It sound like power supply is bad, and it would be cheaper to just replace, you can check with discount-merchants.com, or shopjimmy.com or even vancebaldwin.com

Dec 15, 2010 | Sceptre X37sv-Naga 37 in. LCD Television

1 Answer

Front red light comes on when pluged in, but no power the the tv


be sure all units are auto volt. if you plug units 110V to 220V it might be damage or fuse will blown up.

Jun 28, 2009 | Toshiba 23HLV85 Television

1 Answer

TV SHUT OFF WHILE WATCHING. UNPLUG AND THEN PLUGED BACK IN. RED LIGHT CAME ON IN FRONT FOR A SECOND AND WENT BACK OFF. TV WILL NOT COME ON.


power in the tv has nothing related with the DVD. The tv has to have raster (white screen) even without signal (cable, DVD, others) if the tv alone is just having the led flashing and neither sound nor video (black screen) The tv has a short circuit in some of the boards that are part of the tv system. the blinking is part of a protection when the tv was created in the factory. Refer to the technician to repair this problem.

Apr 14, 2009 | Hitachi 61SBX59B 61" Rear Projection...

2 Answers

Daewoo cp185


Power supply may be faulty.
Initially check fuse in power line input.may be burned.

Jan 23, 2008 | Televison & Video

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