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New LCD tv - have audio, but no picture - Projection Televisions

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Called Sanyo & explained the problem. They told me to bring it back to Walmart & get another. Said it was probably damaged in transit. My new one is working fine.

Posted on Jun 22, 2008

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I have a 50" Samsung tv. The tv turns on and the screen comes on, then within 1 minute the screen goes black. I can still hear sound.


Samsung HL-R5087W TV screen goes blank -tv/sound on - Forums ...

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CNETJun 11, 2015 - About a month ago, the at various times the tv screen would go blankeven though the tv ... Try turning off the cable/sat box when the happens. ... In reply to: Samsung SP50L7HX DLP TV linked to Sky HD box - same problem .... on it comesback to normal. however, once it went off again (Black Screen) after only 2-3 minutes. ln-t4069f picture problem lcd warmup - Forums - CNET
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Jan 28, 2016 | Samsung Projection Televisions

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WHat has caused both audio and video to go out?


Usually a bad power supply. Not worth trying to fix at the price of new flat screen LCD TVs

Jul 31, 2014 | Hitachi 50GX30B 50". Rear Projection...

1 Answer

Hey there I have a Grand WEGA KF-E50A10 (approx 8


I Think that the video is not passing through the tv to get to what you call the lamp. If I am surmizeing correctly ,you have a projection type of tv. since you have a screen raster, you are not getting the video signal through to your circuit board.

Im not really an expert any more because I graduated from electronics school in 1968, when transisters were just begining to come out in tv sets and intergrated circuits were not yet invented. there were still vacuum tubes and tv repairmen in those days.

anyways, here is the trend of society in 2013. No one fixes tv's any more because every one wants the latest & greatest with all the bells & jingles. and tv repair is more expensive now due to not many customers and lack of any competition.
them tv repairmen that are left,have no competion and ask more $ for their services.You going to have to like you old tv an awefull lot to spend $300.00 or so to get it fixed.
100.00 more gets you almost any 46 or 50 inch lcd tv around. especially if you check out the discount prices at walmart.com on referbished tvs

Oct 09, 2013 | Sony Grand WEGA KFE50A10 50" SDTV LCD...

1 Answer

We only have sound when watching TV. Nothing else, like Wii, DVD player, etc. has sound. All inputs have video but no audio. Please help! Thank you.


The 2 long board that call LCD inverter board.Change these 2 long LCD inverter board.U will get ur picture back.The 2 LCD inverter are dead that why u not getting a backlight to get a picture.Tries websites like Shopjimmy.com to buy the two refurbish LCD inverter for the replacement.

Jun 10, 2010 | LG 52SX4D 52" HDTV

2 Answers

I have a 52" Sony WEGA plasma TV. The picture went out, audio is fine. No TV picture, no dvd, no anything. What is wrong and how much do I need to budget to fix it? I love my Sony plasma!


that is because plasma tvs have a limit on there screen life and if all is done all day for months and months was watching tv ,playing games then you will need a new tv plasmas **** you can get same quality out of a lcd flat panel and three time the screen life or you could spend anthor grand and have the solution replace and maybe the that part of the control board went out and you will spending about half of what you paid for it to fix thats why i have two lcds have not had one problem with them one 32 for my computer and a 42 for me to watch tv ov on play games with and both the same brand and i paid 1200 for both brand new

Aug 28, 2009 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

My maxent TV has no picture and no sound


If an LCD TV has sound but no picture do the following:

Use the source button to ensure that source is not set to the wrong input.

Try unplugging power cord for ten minutes, to ensure it is not a setting problem.

Check all the video cables at the back of TV.

Check Light /Color settings.

If problem persist and does not depend on external receiver or settings, then it is likely an internal fault.

If it has sound but no picture then one of the following parts is faulty, and must be tested and replaced:

The inverter is the high voltage board that provides variable power to the backlight lamp. This is the most common. When inverter is faulty you can get no picture, or a very dim picture that can only be seen by pointing a torch light with a 45 degree angle on the LCD surface from very near distance.
The inverter must be tested by reading voltages with a multimeter.

The LCD ribbon cable/LCD display and connectors.
This is quite uncommon, but happens. If the TV had been hit or moved the LCD cable may have slipped out, or the LCD connector may be damaged.

The LCD controller board.
This is the board that controls the video signal, it is difficult to test, as there is need to read determined values on IC pins. To test this board you need to purchase a service manual and follow the troubleshooting diagrams on service manual.

Input/Output Signal boards.
This are the boards where you connect the video and audio cables, if a signal board is defective, then you may get no picture on particular inputs located on faulty board.

If under warranty contact the manufacturer ringing the number on the user manual.

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |

May 07, 2009 | Projection Televisions

1 Answer

Kenmark 20" LCD TV Sound but no picture


My Kenmark Tv Switches its picture off if the PSU voltage drops. Audio is OK but picture does not return as PSU voltage goes back up. PSU's are about £10 online !2Volt 4A Might be worth a punt

May 04, 2009 | Zenith IQC50H95W 50" Rear Projection...

1 Answer

I bought a Samsung 46" LA46F81BD today pluged it in and tune the tv. The picture was great after about 30 minutes the TV went blank and lost picture. I still have audio. does anyone know what the...


If this is a projection TV,you may have suffered premature lamp failure.If it's an LCD,could also be a backlight lamp failure.Either way,it should be under warranty if it's new.

Mar 13, 2008 | Projection Televisions

1 Answer

New LCD TV Not Working!


dear one

your this probleam is with inerface card which built in tv .so called your service pepole and ask him to reinstalled the input interface card again. if you not taken it seriously it may a big problem for your tv in futre so just take an a action

Jan 24, 2008 | Projection Televisions

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