Question about Beko 324250WN 28" TV

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Tv-raster comes for 2 secondsthen gone.checkedpower supply-3caps bulged,changed no chnge.would it be in p/s?. patrick c.thank you

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Check the components in thi mini board ( neck of tV picture tube ) resistors might have gone high in value.check with meter. replace. It is preferable if you open one leg and test. Keepin in circuit it may not give you correct values. Values are generally printed on the resistor body or follow the colour coding.

Posted on Aug 21, 2010

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Sound but no picture on samsung 51e440a plasma. Experienced tech but new to plasma technology.


You've done a very good and exhaustive check of the TV electronics. It appears that the boards are all doing their jobs and you are getting sound and can control the TV. Do a thorough check of the glass panel with a flashlight. Look for fine cracks, particularly in the corners.

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When turned on, only pilot comes on. No raster , no sound.


Hello,

Your power supply board is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
I hope this will help in solving the problem.....

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Try to check your power supply if there is a bulge up in the top of the capacitor or not perfectly flat. try to replace it, but observe the polarity and be sure to unplug the unit before doing some trouble shooting.

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Good day!!!

you have a better chances if you have failing capacitors on the power supply board.

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Optiquest q20wb goes to black screen after 2 secondsthen turn it off and back on stays on for about 2 seconds again goes black and if you leave it on the video will come back and then turn off almost right...


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Thanks for using FixYa. Six blinks on Sony Projection KDF TV means that No Horizontal (H STOP), no raster was detected. The TV isn't turning itself on as the fault protection circuit has detected a fault and has turned down the TV. You'll need to check Capacitors C515 & 516, if they are swollen or bulged. If yes then you'll need to replace them with similar rating capacitors. You'll also need to check the jungle IC, IC206.



Please do accept the solution if the issue is resolved or else revert for further assistance.


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Rca 61"hd busses for 2 secondsthen turns off.repair man said picture tube is gone out .,charged $100.00.And said tv wasn't worth fixing.tv is 2005


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Sharp LC46SB54U TV will not power on


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White dots are all over the screen of 50" DLP TV


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if you use the local channel the raster is coming out? or try to use the DVD input video then testrun if the raster is there you have defective video driver and need to replace

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Sanyo TV Model# DS32224


This is usualy because there is either a high voltage regulation fault, or a main power supply regulation fault.

There are many things that can cause this. When the high voltage goes too far down, the raster will enlarge. High voltage regulation can be caused by faulty components in the feedback sensing, or in the high voltage multiplier, or in the flyback windings itself.

A quick way to sort of know if the high voltage is regulating is to wind the brightness and contrast from one extreme to another and observe the raster size. If the raster is changing size with the brightness on the screen, the regulation is not working well. In some of the low cost sets there will be about a 2 to 5% raster size shift in this case. The high end sets will have a near 0% shift in the raster size. A size change of about 2% is acceptable for most sets. If the CRT is weak, this test will not work well, because a weak CRT will not properly load.

If the main power supply is operating slightly over voltage, the raster size will increase. Usualy, the brightness will be a little on the high side when the supply is too high. Voltage regulation faults can be from warn components in the voltage regulator area, or in the feedback control.

This should be looked after by an experienced TV service tech. This type of fault can be involved.

Jerry G.


Nov 09, 2007 | Sanyo DS32224 TV

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