Question about RCA F35755MB 35" TV

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The screen colapsed into a thin line running from the top center

Screen colapsed into a thin line running from the top center of the screen to the bottom center of the screen.top to bottom

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The deflection circuit is most likley bad. You need a service center to repair . If you can TEST THE BIG FAT TRANSISTORS AND CHANGE OUT IF BAD, THEN YOU CAN FIX IT. They are usually on a big metal finned heatsink ...

Posted on Mar 07, 2009

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Horizental line center of the screen


Horizontal thin bright line across the screen, denotes the vertical sweep failure. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/

Feb 17, 2014 | Vizio Televison & Video

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TV screen has a thin horizontal line in center


this will only help until the next time it is out of alignment but if you slap the side of your tv about where the line is it should straighten out but there is no telling how long it will stay straight......My sons tv was doing that and i had a tv when i was young that did it that is what my mom told me to do and what i told my son to do and it works.... the problem is an alignment or conection problem from dust most likely.

Jul 11, 2012 | Sanyo Televison & Video

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I am trying to help my neighbor. She has a Sanyo flat screen tv Model DS20930. The picture she gets is a thin line across the center of the screen.


Hello
Set the brightness, contrast and colour control of that TV to minimum. Watch it in a dark room whether ther are thin white lines across the screen, at about an inch apart, from bottom to top of the screen. If there are lines, that TV needs screen control adjustments. That is, now the screen voltage given to the picture tube went high to some reasons. If you have confidence that you can adjust it, I will guide you.
Open the back cover of that TV. Locate the LOT [Line output Transformer], usually one red thick wire is connected to the top of the picture tube with the help of a rubber ****** and clip. In most TVs it can be located and can be seen as the back cover opened. There are two variable control, fitted, integrated to LOT. Normally the upper one is marked as focus, and the lower one is marked as screen. You shoud adjust this control to avoid these lines.
It is a live service, that is the TV must be switched on during this time, and take causion in every respect not hurt by yoursef and the TV. Keep the children away from you, and an other adult person beside you is better. A liitle turn counterclockwise will remove this problem.

Oct 19, 2010 | Sanyo DS20930 20" TV

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A thin white line horizontally in middle of screen At first could wiggle the cable conection on back of tv and it would go back to full screen now it won't


it sounds like you have horizontal colapse a very complect repair try hitting the tv if the screen comes up full picture then its a dry joint if not there is an ic or power fault toss it

Jun 18, 2010 | Sanyo DS25390 TV

1 Answer

Jvc av-32wf35 Lost The Picture


that is what we call a "frame colapse"
the frame ic on the set can blowin.
did you have any power failuers beforthis happend.

May 11, 2009 | JVC AV-32WF35 TV

1 Answer

Black screen with a line of the picture running


The vertical sweep generator is dead. The circuit that controls the lines being drawn from top to bottom has malfunctioned or died. This not something you can fix, you will need a professional.

Apr 02, 2009 | Emerson EWF2703 27" TV

1 Answer

I have a KV27FS210 sony wega trinitron tv. It turns on and has a single horizontal line across the center of the screen then buzzes shows a continuous zigzag line from the top to bottom of the screen with...


The single horizontal line is a problem with the vertical circuit. Look for a small flat id attached to a heatsink that should be marked LA7837 or something similar. Try resoldering the pins of this IC first. If that does not resolve it, replace the IC.

Keep us posted.

Dan

Feb 20, 2009 | Sony FD Trinitron WEGA KV-32FS100 32" TV

1 Answer

Thin horizontal line


Solder bad connects in vertical circuit,especially vertical output
IC pins.................T.

Dec 26, 2007 | Toshiba 35A44 35" TV

1 Answer

Thin Red Lines on Top of Screen


Sorry, that is common for generic replacement xformers for
your make / model . There are some adjustments to minimize
the effect in servicer menu...............you can try turning down the
screen control a bit....................T.

Dec 21, 2007 | RCA F36650 36" TV

1 Answer

Thin horizonal line in middle on dark screen


The several thin white lines at the top of the screen is the warning that the vertical output IC is not getting the boost voltage it needs to run correctly. The IC cannot operate for long like that and shorts out inside, which is when the vertical collapses altogether and you get the thin white line through the center of the screen. The good news for your son is that he had nothing to do with that, and it has nothing to do with the cable F connector. The set needs to be serviced by an experienced tech who will restore the boost supply and replace the vertical output IC, and when I do that I charge $75 but techs in your area will vary, so be sure to ask around.

Jul 26, 2007 | GE 24GP653 24" TV

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