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Lcd tv screen goes black after a few seconds but sound still plays. The flashlight test will show the image for a short period of time but then it goes away and is completely black.

Sharp PN-E702

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  • 108 Answers

Hello... It sounds like you have a backlight failure, and the image going away during the flashlight test is due to the TV going into "Protection" mode. A service technician may be able to go into the service menu and clear the lamp error codes and get the TV working, or it may need the backlights replaced. I hope this helps...

Posted on Nov 18, 2017

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6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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  • 75 Answers

SOURCE: BLANK LCD SCREEN

The shutter in the lens is stuck closed. You need to take the camera to a shop where they will replace the lens assembly.

Posted on Mar 25, 2007

skotkolr
  • 558 Answers

SOURCE: Sharp LCD TV, Screen goes black sound stays on

Capacitors on the power pack are going bad they need to be replaced that should fix the problem.

Posted on Apr 07, 2009

  • 26 Answers

SOURCE: my monitor flickers then goes black

It could be the capacitors on your monitor's Power Supply. Open up the lcd and check the power supply board see if you see any "BULGED UP" capacitors. If thats the case you most likely just need to replace the bad capacitors. Go to radio shack or electronics supply store buy the same capacitors with the same mF and volts. If you can't find the same ones then always go with higher voltage. Replace the bad ones with new ones following this video. Make sure you note the negative terminals on the CAPS before you remove them. The shorter side on the new CAP is always negative.

Posted on May 03, 2009

  • 21 Answers

SOURCE: we just set up our 37 in sharp and get no picture

I had this problem on my 42" Philips. Just got it yesterday and worked fine on the tv stand. As soon as I mounted the TV to the wall via wall mount system, I had the exact same issue you did. Figured it out today.

The wall mount was putting pressure against the center of the back of the tv (tv set had a slightly rounded back plate, and the mount was a flat plate). As soon as I put spacers (part of the wall mount hardware set) between the wall mount braket and the tv so there was no contact except at the mounting holes, the tv worked fine.

My theory is the pressure pushed the tv back plate against some board components which caused them to overheat (no air flow); or put pressure on internal connectors. I dont know.

Hope this helps, may not apply to your situation.

Posted on Sep 18, 2009

  • 66 Answers

SOURCE: Sharp LCD TV picture goes off few seconds after

it has problem in picture tube

Posted on Nov 16, 2009

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I have a Hisense led tv model F39V77C.


Yeah, replace the set since it appears to be trashed. But if you have a few bucks lying around you might want to try replacing the unit's power supply to see if that resolves the many issues you have.

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1 Answer

We will get a black screen but still have sound.


Sounds like a main board that controls everything on the screen and then some.

Since a LCD do the flashlight test (what I call it) : darken the room as much as possible and with a flashlight and the set on look closely at the screen, see a very very faint image of the picture or not?

Dec 22, 2012 | Vizio 42 in. LCD TV

1 Answer

After i power my polaroid tv on the screen shows for about 3 seconds then goes black what causes that


Its a Lcd so if it stays on turn off all the lights (we want a dark room) and with flashlight look carefully at the screen to see if you see a faint image of a picture there or not.

Dec 06, 2012 | Polaroid TDA-03211C 32 in. LCD HDTV

1 Answer

Screen turns on for a few seconds then goes black...


mhaupt, Tell me if it is both BLACK and BLANK or just BLACK after you do the flashlight trick !!! This is no joke!! understand?? When the screen goes black hold bright flashlight where you saw an image on the screen (icon or win start button) and tell me what you see or don't see!!
Get back to fixya with new comment to your original post. 12fixlouie

Oct 27, 2009 | Sony SDM-HS73P 17" LCD Monitor

1 Answer

TV was playing, then the screen turned black.


If the screen is black and you have sound then lightly press and shine a strong flashlight against the screen. If you see an image around the edge of the flashlight, an image is being 'displayed'. The problem is probably in the Inverter/CCFT or the power going to the Inverter.

Feb 01, 2009 | Insignia 37" LCD Flat-Panel HDTV

2 Answers

Screen goes black


Hai,
Do you see any dull image on the screen ?
If yes the inverter Card/Backlight of the screen is having problem.

Regards,
Aby

Dec 22, 2007 | Rosewill R900J 19" Flat Panel LCD Monitor

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