Question about Emerson EWF2704 TV

1 Answer

Emerson EWF2702 TV Problem

How can i fix a black screne tv, but one line horizontally with sound is working

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,139 Answers

Hello yyimerr1,

This is a vertical deflection problem, These are the possible causes:

1) bad vertical coupling capacitor
2) bad vertical output IC
3) bad vertical driver IC
4) bad CRT deflection yoke

Troubleshooting needed:
1) using the TVs schematic locate the driver IC the output IC and the CRT yoke transformer.
2) using an oscilloscope look at the vertical driver signal it should be a sawtooth signal from the driver to the yoke (increasing in amplitude for each section, i. e. driver and output).
3) if no sawtooth patter is seen that is your problem, look for the component in the section where signal is entering but nothing is coming out.
4) replace the components

Now let me tell you something, don't continue to play the TV with the line present with brightness applied, this will burn the image of the line into the phosphorous coating of the CRT.

I hope this helps

Thank you,

Shuttle83

Posted on Nov 01, 2008

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How to fix horizontal lines on LG TV


Not sure if this is recent but in settings adjust picture size to fit. Top to bottom side to side.
sounds like you are seeing what are called retrace lines

Sep 30, 2016 | LG 50" 5700 Series LED HDTV - 50LN5700

1 Answer

How do I get rid of vertical black bars on a plasma television


Fix Panasonic Plasma TV Vertical or Horizontal Bars ...

? 10:21
https://www.youtube.com/watch?v=CpWZTnAXbLg
Dec 30, 2013 - Uploaded by Pet Rock's Garage
This video covers how to fix a Panasonic 42" Plasma TV model TH-42PX600U that has vertical distorted ...

Horizontal black lines on Samsung 50" plasma tv - Forums - CNET ...

www.cnet.com > Forums > Samsung

CNETJun 11, 2015 - This past spring, a thin black horizontal line appeared across the screen, everything else is working fine. Next day ... In reply to: Horizontal black lineson Samsung 50" plasma tv .... I tried a white wash on the TV, but that didn't removethe line. Plasma TV has 3 thin black lines
Jun 11, 2015
Black Line across Samsung 50" Plasma has appeared?
Jun 11, 2015
Vertical black line on Sony PFM-50C1 Plasma Display
Jan 28, 2007
More results from www.cnet.com

Jan 05, 2016 | Samsung Televison & Video

1 Answer

My 42 in phillips LCD flat seen has a black horizontal line toward the bottom how can I fix this.


Samsung LN46B650 Thin Black Horizontal Lines - Forums - CNET

www.cnet.com > Forums > Samsung

CNETI'm experiencing thin black lines from the top of the screen to the bottom. ... by babes808gpa / January 15, 2010 1:42 AM PST ... lines are about 1/4 inch apart from top to bottom of screen. starts on the right and about a 1/3 of the way toward the ...have the exact same problem, my lcd tv has multiple lines are horizontal it ...

Faulty HD- LCD - LED TV - Horizontal Lines STRIPS on the ...

? 3:05
https://www.youtube.com/watch?v=KiqJuMiEiak
Jun 8, 2013 - Uploaded by Sameh Moustafa
Faulty HD- LCD - LED TV - Horizontal Lines STRIPS on the picture SOLVED .... I just have one black line ...

TV Repair Help for Vertical & Horizontal Lines on Your TV ...

? 2:47
https://www.youtube.com/watch?v=b0sI7LB4cZE

Dec 20, 2015 | Televison & Video

1 Answer

2 days ago, a narrow black horizontal line appeared in the middle of the screen.


Samsung LN46B650 Thin Black Horizontal Lines - Forums - CNET

www.cnet.com > Forums > Samsung

CNETJun 11, 2015 - I'm experiencing thin black lines from the top of the screen to the bottom. ... my lcd tv has multiple lines are horizontal it starts from the right and fades too the left, ... Samsung LN55a950 - Horizontal lines on right side - Forums - CNET
Jun 11, 2015
Samsung 52" LCD TV black lines - Forums - CNET - CNET.com
Jun 10, 2015
More results from www.cnet.com

Plasma TV Repair Horizontal Lines - How to Diagnose ...

? 2:49
https://www.youtube.com/watch?v=h4XWCxUsSVU
Sep 2, 2014 - Uploaded by ShopJimmy.com
I have thin horizontal black lines on the top and bottom areas of my TV. .... Hi, I have a 2011 64-inch 3D Samsung PN64D8000 Plasma TV.

how to fix horizontal or vertical lines on lcd tv - YouTube

? 4:52
https://www.youtube.com/watch?v=k2QpYJp6MU8
Apr 12, 2014 - Uploaded by cr4zyw3ld3r
Hi my LG 47ln5700 tv set has thin greyish black horizontal lineson one side of the .... I hope this works good with Samsung LCD as well....

Dec 19, 2015 | Samsung HP-R5072 50 in. Plasma HDTV

1 Answer

D sub comes up and screne gos black.shut screne off and put screne back on and d sub comes up again and gos black again,,what is the cathold and drivers in the answer I got before.is it something I can...


It sounds like you have not selected the correct INPUT to the device.OR not connected the cable correcty to the input.

Check your user manual for the device.

Sep 21, 2014 | Cars & Trucks

1 Answer

Samsung LCD black tv screen with colored horizontal lines and the sound works sound works


hello,


All Plasma and LCD TV have boards that control vertical and horizontal output to their respective areas. They are connected to the screen by ribbon cables. If one of these boards fails all together, has a failed chip, a bad connection, or a bad ground somewhere it will result in a black line in the area of that board. A bad ribbon cable connection on the bottom will result in a vertical black bar though the screen. Many times resetting the connection will fix it, if the ribbon cable has been nicked there could be a severed connection. They an sometimes be fixed, but it is a pain. An yes I have done it, but the bar is gone. The same will happen if the chip that outputs to that area opens. The connectors are the first place to look paying close attention to the cable, they are extremely delicate so great care must be taken....

Sep 12, 2011 | Samsung LN-S2738D 27 in. HDTV LCD...

1 Answer

Tv has power, can hear sound, but picture is black. when i shut it off a horizontal white line appears for a short second. can this be easily fixed?


Well, If you are technically sound, you can fixed it, but I will like you to check the line Or Fly-back Transformer and the horizontal and vertical side of the circuit very well.

Jun 15, 2011 | JVC AV-32720 32" TV

1 Answer

Large red bar lower half of tv sharp aquos 52" 2.5 yrs old


some parts inside your tv is damage or short circuited. too expensive to fix or replace

Sep 08, 2009 | Sharp Televison & Video

1 Answer

Permanent horizontal black lines on my 50


Ive got bad news for you, about 90% of the time black horizontal lines are caused by the panel failing, your going to need a new TV. You can try replacing the timing board but the chances of it fixing it are slim..

Jan 06, 2018 | Panasonic TH-50PX60U 50 in. Plasma HDTV

1 Answer

Black line running horizontally across TV screen


A line on an LCD, either horizontal or vertical usually means the video driver board is defective or the screen is defective, does it show up as black even on a dark screen? That means a line of LCD "shutter"s is not working and there is a problem that cant be fixed by a reboot or channel change. Bummer.

Feb 17, 2008 | Televison & Video

Not finding what you are looking for?
Emerson EWF2704 TV Logo

545 people viewed this question

Ask a Question

Usually answered in minutes!

Top Emerson Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75178 Answers

matt martin
matt martin

Level 3 Expert

1213 Answers

 Grubhead
Grubhead

Level 3 Expert

5349 Answers

Are you an Emerson Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...