Question about Emerson EWF2703 27" TV

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Emerson EWF2702 27" TV

Picture looks like it has white smears mostly on the right side of the screen especially when there is bright pictures, what can I do?

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  • losjlozanos Feb 23, 2009

    It looks like my flat screen tv had a fog patch, but only on the left upper corner and only during bright pictures. Obiously since its a flat screen I do not have any thing sitting on it. I do have a atomic clock sitting in front by that side. So I did move it, hoping that might help. I will sign in and rewright weather it helps or not.

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Hi,
I had the same problem it ended up being the speakers I had on top of my tv, so I had to move them. If you have anything on top of your tv with a signal move it. :)

Posted on Nov 23, 2008

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Some channels on my tv are dark and tinted orange, I used the menu button to display the menue and scrolled down to picture but I did not know how to select picture.


Hello
Adjust colour control to zero, and check for a pure black/white picture. Adjust contrast and brightness control to minimum and check whether the picture goes completly off or a slight picture prevails. If the picture goes out when you turn down brightness control to 1/3 position, that is about 20 points, your TVs screen voltage is very low, and it can be adjustable. If the picture does not go out and more brightness prevails, screen voltage is high. If the screen voltage is high, there will be some fine lines across the screen at about an inch apart; on the whole screen from top to bottom.
Screen voltage adjustment is critical for the clarity of the picture. If it is low, no proper colour will be dispayed. If it is high, it is harmful to both picture tube and your eyes.
Never try to adjust it without proper knowledge about it. The screen control can be located alongwith the LOT [Line Output Transformer], of your tv. There will have two adjustable controls there, one is for Focus, and the other is for Screen. Both are interactive, that is adjusting one will effect an other.

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1 Answer

I have owned an emerson tv for two years now. All of a sudden the picture has become very blurry and white. It is not the cable connection and a DVD is also white and blurry. Even the input channels are...


you must open the back cover of tv, and then things you should do is set "SCREEN" adjustment on the flyback transformer. you must turn it counterclockwise to reduce and decrease the level of screen brightness. turn screen adjustment gradually until the horizontal blanking lines disappear from the screen. and blurred images will be sharp again

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1 Answer

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This RCA set uses the CTC187BD chassis. Look on the back of the set and to the right of the cable connector you will see 2 controls sticking out, one on top of the other. The top control is for focus and the bottom one is screen, or overall brightness. If these controls have been turned clockwise then you will have a bright, fuzzy picture with white lines (retrace lines) through it. Tune in a channel with white letters on the screen and turn the top (focus) control until the letters are crisp and sharp. Go into the menu and turn the contrast and brightness all the way down, and then turn the bottom control (screen) until you can just see the picture, just above the point where the picture is too dark to see. Go back into the menu and reset the contrast and brightness and the picture will be back to perfect.

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1 Answer

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

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1 Answer

Picture smear and screen brighter on the right hand side


If you know how to read a service manus then what you are looking for is a possible bad cap on the 200v source feeding the video output collectors or video output IC. That is the first suspect.

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1 Answer

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if you are a tech open the tv and turn down the brightness from off the flyback screen adjustment if that does not work then the flyback will have to be replaced.it is defected.good luck

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2 Answers

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Open up the back of the set but be very carefull. Notice a large black block with a large red wire that runs up to the picture tube. on one side of that large block where the thick red wire is comming out of are two controls, one should be marked focus or F and one should be marked screen or S. With the set operating normally and not touching anything else, slowly turn the control marked screen or S clockwish till the picture gets bright enough. If you go too bright the set will shut down or you see small thin white lines so back down on the control. then touch up the focus and your good to go. good Luck.

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