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Lcd no sound/picture when turned on

Tv will turn on and off, but does not display any picture or sound through the tv itself. (sound will work through external source, surround sound bar)

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It sounds that the digital video processor section circuit has the fault. You haven't provided more details about your TV; brand name, model number etc; so it is not possible to post a solution to this problem. Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" or "Flipcard" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. It will make search easy. There are more than 1300 posts to different brand TVs now. Pull up older posts there. Visit the site, and check whether it can help you.

Posted on Nov 26, 2012

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6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: lcd tv no picture

I took mine back and they replaced it! Problem solved!

Posted on Jan 12, 2008

  • 47 Answers

SOURCE: No display

Well I just joined in the world of broken Samsung's. Died Feb. 1st. I had three month additional warranty, but of course it died the day after. Same problem, no video, just audio.

However if you call 1-800-522-7341. This is the number for Executive Customer Relations. They extended my warranty and contacted the repair center for me. Probably won't be fixed by Superbowl Sunday though. I expressed my disbelief that after 15 months a 2400 set can die. I have to call back on Monday for additional help.

Posted on Feb 02, 2008

  • 53 Answers

SOURCE: Samsung LCD tv wont turn on

what the full model number of your tv?
the clicking sound is the result of a faulty power supply, some capacitors(blown heads) on the power supply for the output voltage rail of the mains board need to be replaced.

pls rate me!

Posted on Mar 20, 2009

  • 1 Answer

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

  • 1 Answer

SOURCE: Samsung LCD tv - Turns on and off by itself.

Not sure if this is the same problem, but I just moved and set up my Samsung 40" LCD and it has been going off and on by itself with the worst yesterday every 2-3 minutes. After speaking with a friend of mine who is not in the Tv business but just has good common sense, I determined it was likely a bad power strip. The bottom line is I replaced the crappy power strip (which was fully loaded with all 6 outlets in use) with the higher quality one I had in the other room. The problem is gone. I suspect the power strip was failing or real bad quality........try plugging the tv directly into the wall outlet first. hope this helped.

Posted on Sep 18, 2009

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1 Answer

RCA flat screen TV turns off by itself and won't turn back on


If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.

Apr 13, 2014 | RCA L22HD41 22 LCD TV

1 Answer

My LG Lcd tv takes a minute or so to turn on then sometimes the picture flickers and goes out. The tv is on but no picture or sound. When I try to use the menu button on the tv it doesn't work. Whe


The fact that you have no menu or onscreen display, leads me to believe that it is the main logic board. Either the processor ic or the voltages going to the main board are missing. Check to see if the main board is getting 5v and 3.3v to determine if it is your power supply not supplying the voltages or your main board.

Oct 26, 2011 | LG 42LC2D 42 in. LCD HDTV

1 Answer

Turned tv on 2night had picture and sound for approx 3 minutes then tv turned itself off had 2 flashing red lights turned tv back on no picture or sound then turned itself off again


B+ over current protection (OCP), unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.

Mar 16, 2011 | Sony Televison & Video

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Watching TV and it suddenly turns off just like if you had the remote and shut off the TV. We set in amazement for a few seconds and then we turned the TV back on. We had sound but no picture. It was a...


Tv turn on now,does it have a flashes of picture only a few second than dies and than have only sound left?Yes,than the tv 2 long LCD inverter boards are dead.These 2 long LCD inverter boards are one to the left one to the right both must be replace.The 2 long LCD inverter boards job are to help the LCD screen panel to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those 2 LCD inverter boards for the replacement.

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1 Answer

Tv picture turns off by itself. sound still


the problem of your LCD TV is maybe there is something loosing up when heated on the backlight board of your LCD TV......all you have to do is resolder it or reheat it with a hot air...........if you dont bring it to the sharp service center

Oct 30, 2009 | Sharp Aquos LC-37GD6U 37 in. LCD HDTV

1 Answer

TV turns itself off after a few seconds, no picture at all


I had a similar problem with my Phillips 42 in. LCD HD TV.

Here's the problem. The Power Supply Board. I opened my TV up(warranty was up of course) and found several bad capacitors. Phillips and several other companies were sold capacitors that although were highly rated failed within 5 years because of a lack of preservatives. All sorts of electronic equipment is now being effected due to these defective capacitors.
Solutions?
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.

Hope this helps

Mar 28, 2008 | Samsung HLP4663W 46" Rear Projection HDTV

1 Answer

Canon A75 No startup sound & display on LCD, rest of things works fine


Think it might be your batteries. 700mah batteries are pretty weak by today's standards (most are at least 2,500 mah these days). I'm guessing your batteries are several years old? If so, they're really only meant to have a usable shelf life of a few years, whether they are used or not. Recommend trying a new set of rechargeable batteries.

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