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My samsung LA40M51B shows a black screen even though i can hear the audio

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Hi there , i have the same fault with my la40m51bs , there was a fault with the t-con pcb at back of the screen , the small fuse marked cp had gone open , best match to this that i could find was a 32v 2.5a from a laptop backlight board , replace the cp fuse and it worked fine , the backlight on this set was fine just no picture , did notice the 2 small regulators had been getting hot so added a thick thermal pad between pcb & metal shield .

Posted on Jun 08, 2013

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There are several failures that can cause your symptom; no video signal, vertical failure, filament voltage missing.

Posted on May 06, 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 ...

www.cnet.com > Forums > Samsung

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 Televison & Video

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I have a 43 inch pdp Samsung tv when I turn it on


maybe it is the unit,cable box, dvd,etc.did you go to tv menu or source to see if they display.

Jan 03, 2015 | Televison & Video

1 Answer

My Samsung Galaxy s3 turns on and I can hear the sound and vibration but the display screen is black showing nothing the only thy thing is that the home button has come off so I cannot try the solution...


Even though your home button is gone, you should be able to use some non-metal object to aid in "pushing" the home button. Something like a pencil eraser should work fine.

  • Did this happen after some sort of impact?
  • Is there other damage?
  • Is your brightness set low, so that if you're in bright light (sunlight), you can't see the screen, or is it just black?
  • Have you downloaded or updated an app recently?


I have an S3, and that has happen to me. When the screen was just black, I restarted the phone. That helped for a few minutes, but I knew a rogue app was actually causing this issue. Once I deleted that app, and restarted the phone, the problem was solved. IF this could be related to your issue, you can uninstall the trouble app(s) from the app store online via your computer or even from another late model android phone under the same gmail account.

I have also been unable to actually see the screen (it appeared to be black) because I was in direct sunlight. In that case, you have to just do the functions even though you don't see the information. Depending on how you've set the phone security, you may be able to press the side button to activate the "unlock" screen, and then just swipe down to access slide-down menu. Then, adjust the brightness as necessary.

Nov 04, 2013 | Cell Phones

1 Answer

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change the FLEX -The flexible cord linking the screen part with the panel

Nov 30, 2009 | Samsung SGH-U600 Cellular Phone

1 Answer

Black wii screen but can hear it


Your cables still could be going bad, even though everything else is fine I would go to a gamestop and buy a used cable and see if that works or go buy a brand new one.

Sep 03, 2009 | Nintendo Wii Console

1 Answer

LCD Screen


Sounds like the new Samsung LCD screen is bad. The back-light on the Samsung LCD may be burned out. Check out this website; http://www.lcdsearch.com/

Mar 30, 2008 | Computers & Internet

1 Answer

Samsung HLN507WX 50 rear projection


do you hear if the color wheel has been whining loudly?
clean the fans from dust.

Jan 20, 2008 | Samsung HLN5065W 50" Rear Projection...

1 Answer

My fone


You need to have the lcd replaced , take it to a mobile service center or professional technician close to you and have iit replaced there.

Nov 14, 2007 | Samsung SGH-t629 Cellular Phone

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