Question about JVC LT42P789 42 in. LCD TV

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Tv turns on and has sound but no picture. Only black screen, the menu from the cable or dvd cannot be seen.

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  • 92 Answers

Make sure your using a cable box that is compatible with a high def tv, if your tuning a high def channel and your converter does not support high def, it will only play the sound, no vidio at all.

Posted on Sep 25, 2009

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Posted on Jan 02, 2017

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Since its a LCD take a flashlight and have the room as dark as possible and with the light look to see if a very very faint image of the picture can be seen or not---many of these sets use a "back light" for the brightness and if that's not on.......

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Issue with our Toshiba 50H82 - overnight it has stopped playing DVD's properly - a solid black rectangle obliterates 75% of the screen. Any idea?


Hi,
Do you see same solid black box in all inputs or just in dvd picture?
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If you can get the tv to display the blue blackground(usually happens when there is no antenna or cable feed to tv) check to see if the whole screen is a solid blue, if it shows discolored areas around the screen then you might have to "demag" the screen. See if you can rent a demad coil from a tv shop and with tv on turn the coil in circular movements all over the front of screen till blue is solid.good luck!

Aug 03, 2009 | Toshiba 32A43 32" TV

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When i turn the tv on i get sound but just a black screen


Try pressing the menu button on the remote to see if the menu comes up.

If it does it's possible the light and colour have been turned right down, find the option on the menu and turn it up.

Also check no cables are unplugged at the back of the tv, picture is usually yellow make sure it's in tight. Check other end as well so sky box or DVD player.

If you're using an AV port on your tv try using a different one, so switch form AV1 to AV2.

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I have a DLP Samsung HL-R6167w and it's not working


I had a bad digital board also. I went to parts.com to order a new part way cheaper than from repair service. the only problem I had was that after installation which is super easy 4 cables to unplug and replug. when I turned on the TV the picture came in upside down, not good. no one would give me the code to flip the screen as it is in a hidden menu, well after months of searching the web I found it!! It works for most all newer Samsung TV's. turn the TV off, hit mute then 182 and then power on button on the remote. the "hidden" menu will pop up and you scrool down to h-flip and flip the screen. I don't recommend messing with any of the other setting as you could likely really jack up the TV but at least you can fix it for a 3rd of the cost you would spend otherwise.

Jun 18, 2008 | Samsung HL-R6167W 61" HDTV

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Sony KV34HS420


Always go through the basics before you post questions.  All I did was reset the TV (unplug for a few minutes) and it is back to normal.  Lesson learned, TV fixed, thanks.

Feb 15, 2008 | Televison & Video

1 Answer

Sound no picture on cable


sweetkiss, if it works through the dvd player and not on cable/satellite box then the tuner is bad, if you have any type of cable/satellite box try running A/V cables out of the box to video input on the back of the tv and switch the tv to that video input, ie; vid 1, vid 2 etc. (your using one of those inputs for the dvd) this will give you your picture back, you can of course also replace the tuner in the set, good luck, BMW Rider

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The problem is not with your tv it's with your dvd player. You have to go into the setup on the dvd player and change your output setting to component.

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