Question about JVC LT-42X579 42 in. LCD TV

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

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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.

Posted on Sep 05, 2010

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Jan 18, 2016 | JVC Televison & Video

1 Answer

Power light flashes a few times, but tv wont turn on


The power light is giving you a Flash Code telling you something is wrong. Search under <Manufacturer> <Model> Flash Codes or service manuals to narrow down the issue. Usually it means a "Not user serviceable repair" is about to happen.

Mar 14, 2015 | Televison & Video

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Hello, I have a Mitsubishi LT-46151. When I power the TV ON I'm getting a blue screen and the GREEN power light is flashing. The blue screen continues to show and then the GREEN flashing power light


Hey it sounds like u have did everything, so check and make sure u downloaded the right firmware on a good USB drive such as a 4GB and make sure format it with Fat32 before u download. Have seen that before with jump drive device and follow directions from Mfg website. If does not work then the CPU or Eprom has been corrupted and main board needs replacing.

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3 Answers

What is a bonded channel signal


A 'bonded channel' is where the modem combines two or more channels together, for increased bandwidth.
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The second <Receive> light can be green or blue. When it is steady green, no bonding is occurring, (less bandwidth). A steady blue light indicates that the modem is using more than one channel for downloading. That is too say, it is bonding(higher bandwidth). That is the preference.... (If green or blue, and flashing, modem is still setting up....).
The third light <Send> can be green or blue. When it is steady green, no bonding is occurring, (less bandwidth). A steady blue light indicates that the modem is using more than one channel for uploading. That is too say, it is bonding, (higher bandwidth). That is the preference.... (If green or blue, and flashing, modem is still setting up....).
The fourth light <Online> is green, only....
If green and flashing, it is scanning for a connection.....
If green and not flashing, it is finished scanning....
The fifth light is the WiFI indicator of network traffic. (It also is used for WPS pairing, which I doubt you will use. Just stick with the WiFi indicator function...). It should be green, normally..., or non-WPS....

If #2 is blue, and 3# is green, normally...., I suspect that there is too much loss in your in-house system of wiring, and splitters. If that is the case, try putting a 8-12dB 'tap', in series with the whole house. That way, the loss is minimized for your modem to 'send' high bandwidth stuff upstream to the cable guys.... Be sure that the modem is connected to the 'tap' port, the house to the 'out' port, the cable company to the 'in' port of the tap block. I pasted a couple of examples of taps, at the bottom of this, to show the port labels. The tap loss to the rest of the house, is minimal to how well everything else works. I get a +15dB signal from the cable company. But, too many splits, left my modem in low speed upload mode. By-passing the splitters of the house, by adding the tap as only loss to modem uploading, my blue light always stays on. I also added an UPS, to cover power failures, and glitches. That was a well spent $50 special!

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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

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

I have a JVC LT-42X579 TV. I got home tonight and


This is common problem of the failure of power supply board inside TV. You need technician to figure out this problem.

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2 Answers

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1 Answer

My tv won"t turn on.


1. Hold [menu] and [vol-] button on the side of the TV
2. while holding these, press the [power] button on the side of TV (NOT remote)
3. blue light comes ON and stays ON
4. wait 10 seconds then let go of [menu] and [vol-]
5. wait another 30 seconds and some type of picture should appear

I think this is right. I got it from the JVC call centers guys so sorry if I missed or messed up a step.

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1 Answer

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The possible answer is that batteries are past thier best now and even a 'full' charge is not delivering enough power. treat your self to new batteries.

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