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Menu display bad capacitor in what section??

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It would most likely be in the video circuits where the OSD signal is generated.

Posted on Mar 27, 2008

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Hello sir my tv sansui modal no.b2b21. My problem is my tv screen pitcher length down side is sort please write how can repair with remote please send the key and how can I use.


It sounds that the vertical sweep section need adjustment. But before adjust, you have to replace all the electrolytic capacitors at the vertical sweep output section. There will be 5 or 6 of them. Replace them all at same time, with same capacitance value and voltage rating. Be sure about its placement, as electrolytic capacitors will have both + and - terminals. In most cases, this must rectify the problem.
If you still experience the same problem, you have to enter its service mode option to do adjustments. This is a semi-skilled work. you must have a general knowledge in electronics to follow, as service mode and adjustments display window will be entirely different to that of user menu window.
If you wish to get more details about how to enter service mode to Sansui sets, check the site linked here. Service mode entry, adjust, and exit method to many brand televisions are given in detail. Check it. Do not go further, if you are not confident.
http://electronicshelponline.blogspot.com/
Pull up previous posts, either by type in the Brand name to your set in its search box, or view it in Mosaic / Timeslide / Flipcard option. Select view option by the drop-down view box, at the top left or the display window.

Aug 15, 2013 | Televison & Video

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Apex gt2715 vertical sweep capacitors


Check the filter capacitor to the power supply to vertical output section. Normally, this supply will be provided by LOT. Check the rectifier diode and smoothing capacitor. Replace all the electrolytic capacitors [5 or 6 of them] in the vertical output section. It will be the best remedy. Never forget to replace the supply smoothing capacitor described above.
Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" or "Flipcard" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. It will make search easy. There are more than 1250 posts to different brand TVs now. Pull up older posts there.

Nov 21, 2012 | Apex Digital AT2708S 27" TV

1 Answer

Picture has foldover at top of screen - about 2" from top


Check and replace all the electrolytic capacitors in the vertical output section circuit. There will be 5 or 6 of them. Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" or "Flipcard" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. It will make search easy. There are more than 1100 posts to different brand TVs now. Pull up older posts there.

Nov 12, 2012 | Toshiba 20AF43 20" TV

1 Answer

Toshiba tv top retrece problem


Check for damaged component/s in its vertical output section circuit. Aged electrolytic capacitors may cause this problem. Check and replace all of the electrolytic capacitor at the vertical output section circuit. There will be 5 or 6 of them. Replace all at one time. The fault you describes here is technically knows as vertical retrace lines.

Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. It will make search easy. There are more than 1000 posts to different brand TVs now. Pull up older posts there.

Oct 21, 2012 | Akai Televison & Video

1 Answer

The screen display gets smaller towards the centre of the monitor


Sir the problem of your unit is the vertical section of your tv, first try to tap the side of your tv if the tv reacts there is a cold solder in the vertical section specially in the IC if you remove the cover of your unit, but be sure to unplug it first try to observe the solder part of the pcb look for this cold solder or loosed solder.
ekcnoel_20.jpeg
ekcnoel_24.jpeg
look for this sign. To fix this you should resolder it using soldering iron, soldering lead, desoldering pump. And also bulging capacitor is the cause of this fault try to look for this capacitor, this bad capacitor is producing a low and unfiltered dc output that causes your unit to malfunction, replace this bad capacitor with the same type and observe polarity.
ekcnoel_37.jpg
This is the bulging capacitor, hope this help good day and best regards.

Sep 23, 2011 | Televison & Video

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My Sony kp53hs10 turns on and has a picture but in afew seconds the screen goes blank and I see 7 blinking lights. Any ideas?


Good day!!!!


That problem is usually cause of faulty capacitors on the power supply section..

Just follow this instruction to fix your TV..

1. Open the back cover of your TV.
2. Look at the power supply board..Its normally connected to the power cord..
3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..
4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..
5. Some of the capacitors not bulged so its better if have a capacitance meter

Sep 14, 2011 | Sony KP-53HS10 TV

1 Answer

My panasonic tv started displaying white lines


some capacitors are faulty in the vertical section of ur tv,, they must be replaced ,calla service pro to replce it 100mfd 50v capacitor

Mar 18, 2010 | Televison & Video

1 Answer

Display menu


its more than likely a bad capacitor or leaky diode thats giving you the problem. However I cant even begin to give you advice without knowing the model number so I can pull up the service info for your set.

Mar 27, 2008 | Televison & Video

1 Answer

Zenith Z27X22D Service Menu Codes needed


significant vertical overscan. It is such that it's impossible to read crawls and such at the bottom of the screen. I think this problem is a tv problem. it is due to vertical section. please change electrolytic capacitor in vertical output section. it will be ok. it is common problem can be fixed at home & very simple.

Oct 03, 2007 | Zenith Z27X22D 27" TV

1 Answer

Double picture


your problem is in vertical section. 1 any capacitor in vertical section is defective. 2 transistors in output ckt might be defective 3 loose contact in vertical section. 4 problem in feed back circuit(if you are a technical person )

Sep 14, 2007 | Emerson EWF2704 TV

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