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Emerson -modle ewf2704 . tv went out no picture no sound wont turn on but when pluged in you hear a buzzing sound

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  • Contributor
  • 9 Answers

My 55" LG did the same thing. Had to have tech come to my house and replace board. It is a factory defect in alot of LG TV not sure about Emerson

Posted on Feb 12, 2012

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  • 2 Answers

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Posted on Jan 02, 2017

techman
  • 3130 Answers

SOURCE: bush 2871ntx ak19 28"TV

cold solder joint on the power supply or in the vert curcuit. If you know anything about the proceder to troubleshoot cold solder connections GO for it but if you dont and dont wanna cause any other problems with the set My advice would be to take it to a pro before any other problems arise if they already havent. Its not a major repair most of the time.

Posted on Apr 05, 2006

SOURCE: emerson tv model no. ewf2704

Hi: When you say small horizontal screen, ¿Do you mean picture does not fill the screen completely from top to button? ¿Do images display normally though they are smaller in size? ¿Is color and definition of signal OK? Please answer so I can have a better picture of the problem.

Posted on Sep 19, 2007

SOURCE: Emerson EWF2704 problem

Look for vertical output LA7804 7-PIN IC near right rear of set on heatsink. Look for bad solder joints in that area also.

Posted on Sep 22, 2007

Shuttle83
  • 1139 Answers

SOURCE: Sound but no picture.

The problem with your television appears to be in the high voltage power supply .  This power supply supports the high voltage on the anode of the picture tube, and the voltages for the picture tube, and other parts of the TV. If you do not have a background in electronics, might I suggest that you have a TV technician to come to your location and work on the TV.

 

I hope this provides some help

Thank you

Shuttle83

Posted on Oct 17, 2007

  • 1 Answer

SOURCE: TV Powered Off, won't come back on

mine did the same thing, I took it to a TV repair store and they said it was a power surge which damaged the power source board. (possibly caused by lightening)
total cost to repair was $70.00 well worth since was only couple years old.
TV is working well.------we'll see for how long????

Posted on Apr 12, 2008

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I can't find a code for my rca universal remote model rcu600m to operate my emerson tv model ewf2704


alright, turns out there is no code for the emerson ewf2704 on this particular remote. i returned it and shelled out five bucks for a different rca universal remote. i ran an auto code search, found the code easily, and i am having no problems.

Aug 14, 2009 | Emerson EWF2704 TV

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The picture is to bright


problem in high voltage area, consult an expert

Jun 02, 2009 | Emerson EWF2704 TV

1 Answer

Tv wont turn on


it sounds to me a transformer in your set has gone hard to say witch. im guessing it is a CRT set the best thing i could suggest would be to take it to your local tv repair shop they should be able to sort this for you and it shouldn't be to expensive.

Mar 10, 2009 | RCA 27V514T 27" TV

1 Answer

Input select function... without a remote?


Whew! Found the NE116UD replacement for the EWF2704 Emerson TV (there are other models on the list as well), it can be ordered here for 24.95:

http://www.emerson.newremotecontrol.com/catalog_item.php?catnum=NE116UD

Hope that helps. This problem is certainly very irritating. I have never heard of a remote for 24.95, nice job Emerson -- never again!

Nov 12, 2007 | Emerson EWF2704 TV

1 Answer

Sound


  • check the following
  • check speaker &its wire & connector for loose.
  • check supply to sound output stage.
  • check components related to sound output stage.like low value resistor & coupling capacitor.
  • check for loose print in sound output stage.
  • hope this will help.

Oct 11, 2007 | Emerson EWF2704 TV

2 Answers

Emerson tv model no. ewf2704


Hi: When you say small horizontal screen, ¿Do you mean picture does not fill the screen completely from top to button? ¿Do images display normally though they are smaller in size? ¿Is color and definition of signal OK? Please answer so I can have a better picture of the problem.

Sep 19, 2007 | Emerson EWF2704 TV

1 Answer

Emerson EWF2704 problem


Look for vertical output LA7804 7-PIN IC near right rear of set on heatsink. Look for bad solder joints in that area also.

May 25, 2007 | Emerson EWF2704 TV

1 Answer

Sound but no picture.


The problem with your television appears to be in the high voltage power supply .  This power supply supports the high voltage on the anode of the picture tube, and the voltages for the picture tube, and other parts of the TV. If you do not have a background in electronics, might I suggest that you have a TV technician to come to your location and work on the TV.

 

I hope this provides some help

Thank you

Shuttle83

May 24, 2007 | Emerson EWF2704 TV

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