Question about Sansui DTV2760 27" TV

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TV MODEL :SANSUI HARD ROCK 21'' PROBLEM : TIME TO TIME ONE HORIZONTAL LINE COMING WITH BLACK SCREEN

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Hi The problem of your teevision is what we called the vertical line problem.The problem is in the vertical section of the board.There are many of cause of that problem.First is either loose connection,the circuit at the vertical section have cold solder so its need to resolder using soldering iron.Second,it maybe no vertical supply,its better to check the 12 volts dc supply of vertical ic output.if thers no supply in the ic,there a open resistor near the flyback.try to replace.Third if theres no loose connection and have a voltage supply the problem is either leaked capacitor or deffective vertical ic output. Commonly in that problem is the loose connection,try to resolder the verical section.

Posted on Jul 12, 2011

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Posted on Jan 02, 2017

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Sounds like LOT arcing. Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts.
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Hi.. Mine is a sansui tv and I bought it 3 years back. Now it is showing a horizontal line on the screen. Sound is fine but I can't see the picture, I just see one white horizontal line on tv...


The problem is vertical failure. Vertical output section to your TV ahs the fault. You ahve to check the vertcial output circuit for any component failure or loose solderings.

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When I go to INPUT the sereen says: VIDEO LOCKED


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2 Answers

Black screen with horizontal line across


Looks to me like a horizontal inter grated circuit would be the blame on why this is happening.

If it where the fly back transformer you would not have nothing (most cases)

What I suggest is to have a shop look at it for you and give you a estimate if it comes over $90 bucks then its not worth the repair/replacment. These tv's can be bought with digital tuners for $120.00 so I would not lay more then $90 at the most in this unit.

Thanks and please do be considerate when passing threw fixya.com to leave positive ratings and feed backs for all experts involved helping you in your situation. Thank You

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

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Describe your Sansui DTV2760 27" TV Problem Loss of picture. A very thin line goes across the screen.


vertical line = bad horizontal output transistior
horizontal line = bad vertical output transistor

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How to enter into Service Mode in Sansui Hard Rock 21 eye model


If you wish to get some details; visit the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

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