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My logik lcx27wn2 tv has sound but no picture i have turned it off and on but still nothing

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I know not of this specific model, but it is not uncommon for ribbon cables to become loose or dirty. It is usually pretty easy to pull a tv apart just remember where all screws and cables came from, and then reconnect them and power up before putting it back together, in case there is anything amiss. Ribbon cables can be easily rubbed clean with an eraser. or alcohol and Q-tip

Posted on Jan 31, 2010

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Turned on, has sound but no picture. Why?


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Whats needed if logik tv model LCX27WN2 will not power on


Fault in the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit.Contact any service technician.If you wish to get some details; check the site linked here.Surf the site with patience.Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

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The problem is related to the section which processes the video/picture information in the TV. Most likely an IC or its surrounding components.
Try consulting TV repair technician.

All the best
Rjn

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1 Answer

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1 Answer

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Most likely - the CCFL backlight is not getting the power it needs to come on. You can verify by shining a light on the front surface of the set - if you can just make out a dim image, then that is it. On some sets, the CCFL can be seen through the vents on the rear.

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1 Answer

Logik tv lcx27wn2 sound but no picture


the only info I could find on this is one withthe same problem. Replacingthe monitor had no effect and the store exchange it.

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