Question about Coby TF-TV2608 26 in. LCD Television

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I have a coby tx-tv 2608 lcd tv that the picture cuts out. it is still powered on has sound mght be loosing its backlighting

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  • Anonymous Mar 13, 2014

    power going to tv but when turning on the tv the picture or sound will not come on

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You might want to check to see if you have some bad solder joints on the inverter, and re solder them , or you could have a power supply problem, getting weak, or need to change the electrolytic caps on the power supply.

Posted on Nov 11, 2010

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Posted on Jan 02, 2017

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2 Answers

Can a tv inverter board cause tv to not display


inverter board may be used to power backlight for the lcd display. If it is similar to laptop lcd displays in functionality .
http://www.ehow.com/how_7501465_check-tv-inverter-board.html

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My panasonic tx-l47et5b has power green light and screen lights up but no picture or sound please help.


Need to know more,what do you see on the screen?
if the lcd was faulty there would still be sound.
if you have changed the av board have you checked the voltage supply to it? have you checked all the visible electrolytic capacitors on all boards for bulging or leaking?

please let me know how you go..

Len..

Sep 09, 2014 | Panasonic VIERA TX-L47ET5B 47" 3D LED TV...

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My screen is dark but the sound is ok


SOUNDS LIKE EITHER THE INVENTER BOARD IS PLAYING UP OR THE POWER SUPPLYBOARD,LOOK FOR FAULTY CAPACITORS.ITS THE BACKLIGHT THAT LETS YOU SEE WHAT IS BEING SHOWN ON THE LCD SCREEN BY LIGHTING IT UP,IF YOU LOOKED CAREFULLY OR SHOWN A TORCH ON IT YOU WOULD SEE THE SCREEN.SOMETIMES IF YOU MANAGE TO TURN THE BACKLIGHT DOWN A BIT BY TURNING DOWN THE BRIGHTNESS ON TV,THE BACKLIGHT WILL COME ON AGAIN,IT IS CUTTING OUT DUE TO LACK OF POWER OR FAULTY CAPACITORS ON THE PSB.DO SOME GOOGLE SEARCHING,GOOD LUCK

Mar 19, 2013 | Sony BRAVIA KDL-52V4100 52" LCD TV

1 Answer

Sanyo Lcd Picture cuts out


Check your power outlet for any loose contacts. Look for any loose contacts in RC jacks/sockets/Cable. Try changing the input device to something you are sure, works such as a DVD player.

Show a torch light (flashlight) on the screen from a safe distance, when program runs. If you can see the picture, the problem is with the backlight and might require the attention of a qualified service technician.

Aug 04, 2012 | Sanyo DP42848 LCD TV

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Today I bought SONY KDL37EX402 LCD TV. Immediately when I turned it for the first time I noticed an unpleasant sound like a “buzzzzzz” from the back of the TV. As I worked it for more then 5 hours I...


Take it back and see if another does the same thing before you get out of the store. There's something loose in the backlight circuit, like a power inductor. They shouldn't do that.

Apr 08, 2017 | Sony Televison & Video

1 Answer

Panasonic TX-32LXD60 won't switch on. Red standby light flashes quickly and then becomes constant. TV Clicks and slight flicker then nothing. Can anyone help please ?


U have sound at all?Yes,than ur LCD INVERTER backlight board it dead.If power LED light keep flashing nothing on,sound or picture.Than the power supply board is dead.Must replaced the power supply board.Tries Websites Shopjimmy.com,Ebay.com to buy these refurbish boards.

Feb 26, 2010 | Panasonic TX32LXD60 32 in. LCD TV

1 Answer

No picture


If we first establish if the tv has actually come on and out of standby. If this is the case, gently press on the lcd with your finger..Is there any backlight showing ? Is there any sound on the TV? If there is sound and no picture and no backlight your problem will be the invertor. If there is no sound, no backlight, the fault most probably is the power supply board, and could be a fuse or capacitors going 'dry' with bulging tops. If there is backlight and sound, the problem will most likely be main pcb or the Tcon pcb (mounted on the LCD rear top middle).

Feb 13, 2010 | Samsung LE22A457 22 in. LCD TV

1 Answer

No picture or sound


This generally indicates an issue with the backlight inverter loading the power supply. The inverter assembly is easily replaced in this panel and costs approx. $90-140 depending on your parts store. Please use caution when working with this component, it produces the very high voltages required to illuminate the screen.
Good luck to you.

J. Weibel
CustomElectronics.Org

Jan 01, 2008 | Panasonic TX-26LXD1 26 in. LCD Television

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