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How to connect yoke line

How to connect a yoke line

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To get more details about this, you have to download the repair manual to this set. By the way, what is the brand name and model number to your TV? Provide more details, please. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/

Posted on Mar 21, 2014

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Lg tv ic 9370 vertical line and no rastar & retrace


Absence of horizontal scan signal to the deflection yoke. Check all the connection to the deflection yoke. If found OK, the deflection yoke winding [horizontal] is open. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Aug 26, 2015 | LG Televison & Video

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No picture on Norcent LT-2790 bk


There are two possibilities for this fault. The first one is with it deflection yoke connection. If this connection have any loose contact at main board side, horizontal sweep pulses will be absent to deflection yoke. Check this plug in connection first. If it is OK, check and replace the CRT connection socket.

Jun 04, 2012 | Norcent Technologies2703 27" TV

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What causes the horizontal transistor to short? flybak ok, supply line ok. my tv is a samsung with a model #: ct-21k30mh.


Hello
You just replace the capacitor fitted very near to the horizontal output transistor,[freewheeling capacitor], there may be one or two of them, whcih comes to a value of 3900pf to 6700pf 2000V or so. It is connected to the negative rail and the collector of the horizontal output transitor. If it gets opened, or its value gets reduced, this fault will occur. If so the transistor you replace will get shorted as you swich on the power to TV.
The second one is deflection yoke short. If so the transistor said above will overheat within seconds. Even a single winding inside the horizontal deflection yoke shors, it puts a tremendous load to flyback transformer, which in turn effects the transistor.
After replacing the above said capacitor, you do one thing to make sure about whether there is a short inside the yoke or not. It cannot be measured by normal methods. Fore that, unplug the base card from picture tube and place it somewhere near without getting any of its contacts to other parts inside your TV. This time only the EHT chord will be connected to picture tube. Unplug the horizontal yoke connection from main board. Switch on the tv, and wait for some time, say at about 10 seconds, and check whether the transistor gets overheated or not If it does overheats now also, the winding or EHT retifier diodes inside your flyback transformer has some trouble, and it should be replaced with same type and number. If it does not overheats now, the deflection yoke's winding have some short in it. Ok.
NB: Never connect the TV with base card is in postion while deflection yoke connection is isolated. keep it unpluged.

Oct 27, 2010 | Samsung Ultra SlimFit 20" Digital TV

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There is a line down the center of the screen


whether the line-shaped vertical or horizontal? if it appears a horizontal line on your side, it signifies the vertical rays do not exit the screen or your TV vertical part is not working. damage can be caused by IC Vertical, or in the vertical deflection coil yoke.dan if a line that appears is from top to bottom that indicates the horizontal section is not working, usually there is a problem of the deflection yoke is not connected or defective.

Jul 11, 2010 | Televison & Video

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No picture


These sets are famous for loose connections in the horizontal circuit. If the line is going from top to bottom you still have high voltage but no yoke drive. Either a capacitor has gone bad or there is a loose connection to the yoke plug. This is a pretty "hot" circuit so you may want to have a repair shop check it out for you. Thanks

Nov 01, 2009 | Televison & Video

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Only getting vertical lines on screen..no picture


Tell me are they Verticle lines or verticle LINE. If it is one line, either yoke( a coil kept at the neck of the tube).A yoke has two coils for Vertical and Horizontal for deflections.When the Horizontal deflection coil is opened you get a vertical line which is a single bright line. There another small linear coil on the board connecting the horizontal coil of the yoke.This is a simple fault and tracing is very easy and not expenssive.Only if the yoke is open, it might be bit costly.And that is a rare case.

Aug 02, 2009 | Mitsubishi VS-45607 45" Rear Projection...

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53 inch panasonic projection tv. have sound screen is black with red green and blue sqiggly line in middle. what is it and how much to fix


check the yoke plug solder joint, as the squiggly lines in the middle usually happens if the yoke is unplugged. So check the yoke plug connections.

Jul 06, 2008 | Televison & Video

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Sony gv-27v42 27" tv picture cuts out after a few minutes


Vertical lines down the center only means that you have a loose connection on the Yoke. Re solder all the connection on the yoke and where the yoke connection meets the main board.75481bd.jpge307a54.jpg

best regards
Circuitcity

Dec 21, 2007 | Sony KV-27V42 27" TV

1 Answer

50" rear projection TV


This is a VZ3 chassis1.gif....notorious for cracked solder connections on the yoke plugs. Look at each yoke on the 3 CRT necks , you'll see a Molex plug on each yoke. The top two connections are for the vertical winding. There is a plastic tab that hinders easy soldering of these....carefully clip it off with a good pair of ****. You can then access the top 2 solder connections. Resolder these and also resolder the vertical output IC401. This should take care of the problem.

Dec 19, 2007 | Mitsubishi VS-5043 50" Rear Projection...

1 Answer

Trouble


the best and first thing is reduse brightness to avoid crt demage 1 check circuit between horl output to yoke horihontal winding 2 check h yoke connection 3 boost capacitor generally low value &high voltage

Sep 09, 2007 | Sony FD Trinitron WEGA KV-21CL10 21" TV

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