Question about Samsung Projection Televisions

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I have a Samsung le23r88bd LDC TV. The kids have turned it on and the screen remains blank. I know there is power to the TV as the tiny red light appears on the corner of the unit but when you press a channel to get the TV to turn on it just does nothing, other than the red light goes out. I think they've pressed a button, or a combination of buttons that has prevented the TV from coming on as they can't reach the TV to touch or damage it. It's as if it the TV needs a reset button to get it going again. Any suggestions would be greatfully received as the TV is only 18 months old £420 new, (as you probably know)!

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6 Suggested Answers

bluenadas
  • 203 Answers

SOURCE: Need Help big screen turns on thens goes off

The unit is going in to shutdown. Sounds like you have a short in the high voltage section.

Posted on Jun 08, 2007

Slinteriors
  • 8617 Answers

SOURCE: TV makes chirping noise, won't turn on!

That usually means a problem in the start up or deflection circuits. Diode, Horizontal ouput or driver transformer. What Chassis is this set, and I will be ableto give you some better information. Rca , GE and phillips need to be diagnosedwith the chassis number. Let me know the chassis.

Posted on Jan 25, 2008

SOURCE: 65S500 will not turn off

Check to see if you have it set to do the Magic Focus on turn-off. It is in the menu under setup.

Posted on Jan 27, 2008

MikeMaierTV
  • 206 Answers

SOURCE: TV will not turn on

There are a few reasons that this could be happening first one is maybe the lamp died on you, Afraid there is no way to test this other than replacing the lamp. The second problem may be 5 capacitors on the power supply that hold the 12 volt line low and do not allow the light engine to start properly.
First thing you have to do is listen to how it trys to start, It should sound like this, first when you hit the power switch there may be a click then within five seconds the fans then a few seconds more you may here a sparking noise, if all this is happening then you most likely just have a bad lamp

Posted on Feb 19, 2008

  • 4 Answers

SOURCE: My 50" hitachi ultravision won't turn on

i got a 62VS69A model type hitachi tv.... and it was thunderin and lightning outside all day .... and i left it on ... and when i woke up ... it was off..... and when i went to turn it back on.... it blinks blue,, then the light below it blinks red.... and the light below that light blinks red .... and then the first blue one again ... and over and over again ... untill finally it juss stays red... i donno whats goin on with this tv... im assumin it was the bad weather outside that did it but im not sure..... can someone PLEASE help a brother out ? lol

Posted on Aug 20, 2008

walesarumi
  • 6993 Answers

SOURCE: RCA 52" proj. tv will

Hello,

The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to.

I do not think it needs replacement, rather some defective capacitors are causing this issue.
Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.

The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)

You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.

What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).

You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors).
After replacing these capacitor(capacitors) most likely the normal operation will be restored.

Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.

If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.

I hope this helps.

Good luck.

Posted on Dec 03, 2010

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