Question about JVC LT-42X688 42 in. LCD HDTV

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I have a lt-47x579 JVC LCD tv backlight ons no picture theres sound just no picture

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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zjut
  • 106 Answers

SOURCE: lcd tv backlight prob

You need to replace the inverter board if you can find the spare part. Otherwise you need to replace the whole lcd panel.

Posted on Jan 01, 2008

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SOURCE: Picture blacks out after a few seconds after turning on the tv

Anytime an LCD has a shade of pink, that means the CCFL lamps are about to go out. Now that you have a black screen, I'd say you just need some new bulbs.

Posted on Oct 04, 2008

sparky1500
  • 1066 Answers

SOURCE: TV screen went dark, but sound still there.

your backlight burnt out, this will be a maybe several hundred dollar repair. the screen is backilt by a very expensive flourescent light, without that light, the screen will be black.

Posted on Nov 28, 2008

  • 1779 Answers

SOURCE: JVC LCD TV LT-42X688-powers on, blank screen. no picture,no sound

You most definately have bad capacitors in the power supply. try and get it repaired as soon as possible, not an expensive repair that iv'e seen.

Posted on Feb 04, 2009

  • 1 Answer

SOURCE: JVC LCD TV LT-42X688-powers on, blank screen. no picture,no sound

Hi , I have the same problem with my LT-42X688,so i called the service of my extended warranty provider . the TV technician just left and told me the motherboard is the problem. he said its the third one this week he has seen with the same symptoms. he ordered the motherboard and i've got to wait 5 to 7 work days before the part will be in . I will keep you posted when the guy will return.

Posted on Jul 21, 2009

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JVC LT-42E910 LED flat screen TV, backlight comes on, menu box is displayed but after about 5 seconds backlight goes out. Picture and sound still working but no backlight. How can I troubleshoot?


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Get free help, tips & support from top experts on jvc tv backlight related issues. ...JVC LT-40SX6AT flat screen. Was watching TV ... ...jvc logo, has sound but nopicture Backlight is defective. I suggest ... Question about LT-42E910 42" LCD TV.

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Jan 11, 2016 | JVC Televison & Video

1 Answer

JVC tv sound but no picture


It could be a main board, but it could be a backlight problem. To verify this, turn on the set, dim the lights in the room, shine a bright flashlight on the screen. If you see a faint picture, you have a backlight problem.

Jan 09, 2013 | JVC LT-52X579 52 in. LCD TV

1 Answer

JVC LT-47X579 blows fuse WHEN CABLE IS HOOKED UP


Most likely a surge in the cable line! I would call your Cable Provider for assistance.

Apr 22, 2012 | JVC LT-42X579 42 in. LCD TV

1 Answer

CAfter the JVC model LT-42E910 is on for 10 minutes, the picture goes blank/black, but I have sound. I must turn off the tv and turn it back on every 5 minutes to get a picture. The tv is 4 days old.


It is a new tv.Take it back where u bought it and trade it in for another tv.This tv have those 2 LCD long inverter boards have problems.These 2 long LCD inverter boards are to help the tv LCD screen panel to have a backlight for the tv LCD screen to produced a picture.

Jul 07, 2011 | JVC LT-42E910 42" LCD TV

1 Answer

My JVC LT-47X579 is not "turning on" since we


hmm i had the same problem the saturday before on my lt-42x579but i didnt have anything hooked up to it blue light came on then flashed ..no pic this happend one week after it was pd off from a rental store we should investigate

Dec 22, 2010 | JVC LT-42X579 42 in. LCD TV

1 Answer

Hello my TVC LT-47X579 wont come on the blue power light just flashes after a few seconds


Unplug,replug the tv about hour,the tv should reset itself back to factory setting.The tv should work now,not than the power supply board is dead.That the board,where the power a/c power cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Sep 05, 2010 | JVC LT-42X579 42 in. LCD TV

1 Answer

There is a picture for about 5-10 seconds then the


Ur LCD inverter backlight board is dead.Replaced this LCD inverter backlight board,will get picture back.Tries these websites Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter backlight board for the replacement.It a long board in shape.

Mar 16, 2010 | JVC LT-37X688 37 in. LCD HDTV

1 Answer

JVC LT-37X688 37 in. LCD TV. When powered on there is a brief flash of light on the screen and then the screen is black and stays black. Audio is fine and I can still use all of the remote controlled...


No lamp on LCD tv.The LCD backlight inverter board it dead,that board needed replaced to get picture back.Tries Shopjimmy.com,Ebay.com to buy the LCD backlight inverter board.It usally a long board.The refurbish LCD backlight inverter board about $100-$120.

Feb 14, 2010 | JVC LT-37X688 37 in. LCD HDTV

1 Answer

Et powers on, has jvc logo, has sound but no picture


Backlight is defective.
I suggest placing it on Ebay and using profits to get a new TV.

Backlight replacement is possible, but the bulbs are unavailable so it would be required to purchase similar model from ebay to get them. There are other methods but this is the easiest.

Jul 26, 2009 | JVC LT-32E488 32 in. LCD Television

1 Answer

No Picture


Backlight Bulb is out.
You cannot purchase these as a spare part, you must purchase the complete backlight.
Backlight cost is more than or equal to a new TV
You may sell this TV on Ebay (list your exact symptom). Start at 100 you will get about 250. Take this money and buy a new TV.
LCD backlights don't fail often but when they do there are no part available to repair them so you get stuck buying the complete assembly part. This is more expensive than a new TV since LCD prices have dropped so much in recent years.

Apr 19, 2009 | JVC LT-32E478 TV

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