Question about JVC AV-27D305 27" TV

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JVC TV My 27 inch television is showing programs so dark that night scenes are completely BLACK. Have used ALL the BRIGHTNESS buttons on televison and remote.

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  • WNBA Feb 25, 2008

    DON'T HAVE A CONTRAST BUTTON....

  • av8r641 Apr 28, 2008

    I had the same problem but now its gotten worse. When I first turn the set on I have a picture and then the screen goes black after about 90 seconds. I have tried turning the brightness and contrasat up to no avail.

  • Odongo Erick Jul 17, 2008

    I changed a new sanyo circuit board but the tv brightness is low

  • middle_ea13 Jan 10, 2009

    Adjusting contrast settings makes no difference; I have the exact same problem with my tv. Same model.



  • ri_mohammed Apr 23, 2009

    my jvc shows very dark and night scenes are black and not seen

    i have a sharp 19 inch and it shows the sme night scenes much brighter

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  • 379 Answers

U need to adjust contrst settings

Posted on Feb 21, 2008

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**WORKS**

In my case, the adjustment was available from outside the TV. Sortof. On the rear of the TVabout 2 inches to the right of the coax in, there are two vertical slits on a little protrusion. Inside the slits are the two adjustment screws. The lower screw adjusts brightness, the upper screw adjusts focus.

Dec 23, 2007 | JVC AV-27530 27" TV

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Dark picture


**WORKS**

In my case, the adjustment was available from outside the TV. Sortof. On the rear of the TVabout 2 inches to the right of the coax in, there are two vertical slits on a little protrusion. Inside the slits are the two adjustment screws. The lower screw adjusts brightness, the upper screw adjusts focus.

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1 Answer

Brightness of picture


If you feel good about opening your set then you can try this: Look for the flyback (high voltage) transformer, with the thick red wire which goes to the top of the picture tube. There are 2 controls on the flyback transformer, focus (top) and screen (bottom)Turn the brightness and contrast all the way down and then increase the screen control until you see retrace lines, and then back it down until those lines just vanish. Return the brightness and contrast to normal and adjust the focus control, if necessary, for a nice sharp picture. Let me know if that brings your brightness back.

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1 Answer

Night or dark scenes are too black


take your set to a tech for adjustment of the focus.

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