Question about Emerson EWF2704 TV

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How do you fix vertical hold

Tv is rolling

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  • amp1249 Aug 02, 2008

    WE DID !!! THANKS

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Please contact the nearest repair shop.

Posted on Aug 01, 2008

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1 Answer

Troubleshooting


If the vertical hold control have no effect, and can't stop vertical rolling, the vertical oscillator side should be checked. Check the hold control too, if any.

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Wow 5 months without a solution. NOT GOOD.. Well I hope I can help...
This sounds like a vertical hold problem, and is normally easy to fix.... There should be a couple of nob's on the lower back of the TV. One for vertical and one for Horizontal hold. You need to find the vertical hold nob and adjust it, until the rolling stops and stabilizes. If however these nob's are not visible you will have to take TV to an engineer to fix it.
Hope this helps..

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no control over the remote..but impossible not to have vertical hold control in the TV itself. it should have one maybe at the back.

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2 Answers

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Are you sure the roll isnt Vertical? as if it is then all you need to do is adjust the VERTICAL HOLD PRESET POT which should be located on the PCB somewhere, its very unusual for TV.S to roll horizontally as then the picture just goes out of sync. and you would not see a picture at all. When you find the pot turn it ( with a small screw driver) slowly until the rolling stops, if it does not stop then you have a faulty component in the vert. sync. circuitry.

Feb 04, 2008 | Televison & Video

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1 Answer

Vertical rolling


Does you set have PIP (picture in picture)? If it does then the PIP module has a bunch of capacitors that have gone bad (dried out and leaked) causing you to loose vertical sync. Vertical synchronization is what locks your picture keeping it from rolling. Even if you don't have PIP then still you have a vertical sync problem. The set would have to be checked by a tech to find exactly what's happening. Stargazer

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1 Answer

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well most of the modern tv today doesnt have vertical hold anymore. this symptom is caused by a trouble in the IC integrated circuit or the vertical oscillator circuit. let the service guy do the job if u dont know anything about this. good luck!

Feb 02, 2007 | Quasar SP-3235 32" TV

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Horizontal roll on mitusbishi 35" tv


is this a horizontal black line going up or down? if yes, this sympton is caused by a trouble in the integrated circuit or in the vertical oscillator circuit. this symptons has 2 variations. one is the intermittent rolling of the picture. this referred to as the "loose vertical hold" the other variations is the continuous upward or downward rolling of the picture

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1 Answer

Picture has a horizontal row


this symptom is caused by a trouble in the integrated circuit of in the vertical oscillator circuit. try to look if your tv has a vertical hold control at the back or inside, if it does not have, u have a problem in the vertical oscillator circuit. by the way, its not the horizontal that u should concentrate into, its the vertical. coz this is a vertical sync problem.

Jan 12, 2007 | Konka K2001UM TV

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