Question about Samsung Televison & Video

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No picture (black screen) after remote control button-presses

Hi all,

My 2 year old son was playing with the remote for my Samsung 42D7HD 42" Plasma and somehow has "broken" the picture for it.

All sound, remote functions, etc seem to be working (I can hear that the channels are being changed). Have pulled the power briefly and reinserted, and pressed every button on the remote again (but now I'm working blind so not sure if there's a menu item he's managed to hit).

I cannot see a thing on the screen, the blue power LED goes out as usual when the power is on and I have sound etc, but there is no picture at all (no channel number information or menus either, it's not just a tuning issue).


Is there a "reset to defaults" capability or some simple trick I can try to get my picture back? I'm hoping it's not just a coincidence and the TV has gone faulty at the same time as my son was fiddling with the remote.

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  • Samsung Master
  • 74,468 Answers

Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Posted on Mar 11, 2017

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6ya6ya
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Posted on Jan 02, 2017

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techman
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SOURCE: cant change channels

Your in the video mode so you have to change the input. On the original remote, its the button left of the power button. A universal may not work for this. If you need the original remote, Its available at http://www.remotes.com Good Luck

Posted on Aug 18, 2006

  • 2 Answers

SOURCE: TV suddenly doesn't respond to Sony remote & power button on Satellite remote.

I am having the same problem with the "initial setup" screen flashing repeatedly/ intermittently. It's not a problem with the remote. In the research I have done online, it seems as though this is a common/known problem with the Wegas that will require a service visit. Apparently the problem is a defective receiver chip. The best thread I found is at: http://www.agoraquest.com/viewtopic.php?topic=15393&forum=34&start=0&select_page_number=1 I've seen some speculation that it is caused by windex or cleaning fluid dripping down when the screen is cleaned and corroding one of the internal components. That's not applicable in my case, since I always just clean the screen with a microfiber dusting cloth. So, I guess I will be calling a repairman and spending $$$ to fix as it is now flashing up so often as to be unwatchable. Ridiculous, I think, given that my TV is only 3 years old!!

Posted on Jan 11, 2007

  • 22 Answers

SOURCE: Can't access AV Channel on Sony KV-C27TD

If the TV has no RCA inputs, then there is no "AV channel" option for it on any remote, just channel selection.

The purpose of a RCA to SCART converter (aka RF modulator) is to convert one of your channels to an A/V input. They operate (standard) on either channel 3 or 4 as selected by a switch on the converter.

If your converter is unpowered, it's entirely possible that the signal coming out is not good enough to overpower your antenna signal. In this case, you may need a powered unit (such as this one http://www.bestbuy.com/site/olspage.jsp?skuId=5806345&productCategoryId=abcat0107025&type=product&tab=7&id=1067388827858#productdetail) which can actively "shut off" the antenna input when signal is received from the auxiliary device.

Posted on Nov 13, 2007

  • 1 Answer

SOURCE: toshiba 32a33 32"tv

My dad and I fixed the TV/Video problem over the weekend using one of the solutions suggested. Make sure you stay away from the red wire running from the back of the tube to the circuit board.

1. Take the cover off the back of the TV.
2. On the bottom of the TV is a circuit board that is mounted on top of a plastic tray. Remove the cables running from the speakers by squeezing the tab on the white plug and pulling them up and off the board.
3. Looking at the back of the TV, pull the board+tray out (barely secured in there) and flip it 180 degrees so you're looking at the front of the board.
4. Desolder and remove the TV/Video push button. It's labeled on the PCB, and should be the second button in from the left.
5. Place the tray back in the TV and make sure the other buttons still remaining on the baord are aligned with the buttons on the front of the TV.
6. Put the cover back and you're done.

TV works as good as new again. Of course I can't use the TV/Video button on the TV itself, but the remote handles that fine. 20 minutes max, and no repairman needed.

Posted on Jul 07, 2008

  • 3 Answers

SOURCE: Sylvania SST4272

The first guy who answered is right. I had this same problem, with a different model, but I tried what he said. Hit the menu button on the TV, then scroll to the "7F" option that the first question mentioned (I did this by hitting "menu" and then the Volume Down button several times. Then turn off the tv. Then you can turn it back on.

And to the guy whose power button is missing, mune was too. you can reach in there with something plastic (i used a mechanical pencil) and flick a switch on the right side of the hole, just fiddle around with it. I had to turn it back on with a remote though.

Good luck!

Posted on Apr 08, 2009

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