Question about JVC AV-27D302 27" TV

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TV picture too dark

All menu adjustments are maxed out, but in dark scenes, you can't see anything. Picture looks normal on other scenes...

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  • cfran78090 Sep 02, 2008

    I have the same problem as fiddler Fred. I have also adjusted contrast and brightness without luck.

  • Anonymous Sep 10, 2008

    I've had the same problem for years...no luck finding out why.

  • lizettehykes Oct 20, 2008

    Things are too red, even though there are still greens and blues in the picture. sometimes, without touching anything, the picture will run normally, but slightly darker than our other sets.

  • Mike Schwartz Dec 27, 2008

    'same problem as fiddler Fred. srtech, where on the set, remote, screen would I find how to make that adjustment?

  • meldrumgary Mar 27, 2009

    I have a JVC television and the picture is also dark with all the menu settings set at max. The picture is still like watching a night scene all the time and when there is a night scene you can't see anything. Please HELP! Thanks Gary M.

  • meldrumgary May 11, 2010

    How do you set the screen adjustment as you say it just needs to be turned up just a touch???????? I have the menu adjustments all set at max and it is not really helping with the picture. A night scene is still black and you can't see anything. Please advise and help me out. Thanks Gary M.

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Your screen adjustment needs to be turned up just a touch (flyback)

Posted on Oct 23, 2008

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1 Answer

In dark scenes the picture is almost black, cannot see.


Open the settings menu with the TV remote.
Go to Screen/Picture menu.
Adjust brightness up until you are happy
Press save if necessary.

Mar 06, 2015 | Televison & Video

Tip

Kitchen table, Screen (G2) voltage adjustment, Course 101


Well, those of you who have no idea why a Screen Voltage (technically known as G2) adjustment may interest you, here is a photo of a bad adjustment (too high).

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You may also experience smeared colors… this is caused by a low adjustment. To correct this, we need to get the back off of the TV. It would be a good time to unplug it if you have not already done so. Next we locate the FBT (Fly-Back Transformer).

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This is a 20” model and it has 2 knobs. Your FBT may vary, as some slim designs and some large tube models may have 3 knobs.

You will need to look closely at the knobs; they will be labeled “Focus” or “Screen”. On units with 3 knobs, there will be 2 focus knobs and 1 screen. For now, we will be working with at the Screen knob only.

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With the adjustments identified, we are ready to plug the TV in (including your standard cable connection) and turn it on… BECARFUL!!! For the rest of this adjustment, we will be working inside of an electrically charged TV. We also need to normalize the picture, so go into your TV menu and adjust the Picture and Brightness settings to the middle or center.

If your TV normally displays a black screen when you do not have a signal connected, ex: Video input 1, then this will be the quickest and easiest setup for you to use. However, if you are not so lucky, you may need to bust through your DVD video collection and find a “between scenes” shot that you can pause on to give you as black of a picture as possible. Eliminate as much light in the room as you can (just remember, you still need to see what your doing)… we want a good view of the screen without the interference of ambient lighting.

Once you have your black screen all set, we are now ready to proceed to the adjustment. If you have lines on the screen, see (HIGH)… if you have color smear, see (LOW).

HIGH: If you have some lines in the picture with a washed out appearance, your Screen voltage is too high. You will need to turn the Screen knob on the FBT counter-clockwise. Do this slowly, until the lines are no longer visible. If you still have a small amount of illumination coming from the screen, back it down a touch further until this just disappears.

LOW: If you have smeared colors in the picture that seem to trail of the edges, your Screen voltage is too low. You will need to turn the Screen knob on the FBT clockwise. Do this slowly, until you just see some lines zigzagging top to bottom on the screen. Now, you will need to turn the Screen knob on the FBT counter-clockwise. Do this slowly, until the lines are no longer visible. If you still have a small amount of illumination coming from the screen, back it down a touch further until this just disappears.

The final set, switch the TV input over to your cable input and check out the picture. Take a good look at some bright scenes and dark scenes. Do they look ok? Adjust the Picture and Brightness in your menu… can you set the picture to your liking? If so, you are all set. If not, double check your work (remember to normalize the Picture and Brightness setting).

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If you are unable to adjust the Screen voltage as described above, you may have a High Voltage problem with your TV. This will require a repair and is not covered by this tutorial.

If you are all set and the adjustment is good, we should have a quick look at the focus adjustment. Return the TV to your Black screen setup. Press the TV menu button to give you nice fixed display to focus. Adjust the focus knob(s) until you have the clearest picture. It’s important to balance the center of the picture with the corners of the picture. If the center is too sharp and the edges and corners are blurry, it is not a good adjustment. Do your best, you are the final judge of your work here.

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Once you have finished the adjustments and verified the picture with your cable picture, you are ready to close it up and return the TV to normal service. Unplug the TV, replace the back cover… enjoy!

I hope this was helpful. If you benefit from this tutorial, please leave some feedback.

on Mar 21, 2010 | Televison & Video

1 Answer

Color is grate on my Sharp 26" TV. However night scenes have become almost too dark to see. I have tried to adjust the settings but no improvement. Is this a fixable problem? Using Comcast Cable a


Check 'brightness' and 'contrast' settings in (usually) 'picture' menu. Use a recording (DVD etc.) of a dark scene to adjust the picture. My TV (not Sharp) has several pre-programmed picture settings. If yours has that, maybe one of them will be good. Otherwise, use manual settings.

Oct 18, 2014 | Sharp Televison & Video

1 Answer

Hi Guys, I have a JVC 32T55EKS TV & the picture is overly dark. When the picture goes through the set-top box the picture gets even darker. The brightness is turned up fully & I have accessed the...


U turn on the contrast level to the max,if still not watchable,tv cathoray tube is dying,radiaton is disappearing.Time to buy another tv.

Feb 14, 2011 | JVC AV-27230 27" TV

1 Answer

My TV picture seems to have a "sheen" aking the


Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.
This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.
You can get a repair kit with parts and instructions from www.TvRepairKits.com

Sep 23, 2010 | Mitsubishi WD-73827 73" HDTV DLP TV

1 Answer

When I am watching a dvd with a dark scene it seems to get even darker almost to the point where I cant see anything.The light scenes are fine. Is there a setting I can change


try adjusting your brightness a little highter up and if you have a LCD tv you can adjust the backlight through your picture/video/image settings in your On Screen Display menu to your television

Aug 07, 2009 | GPX D1816 DVD Player

1 Answer

I have a JVC tv only 1 year old and the picture is getting dark.


have you tryed adjusting the picture in the menu section! this may help!! or on back of tv is adjusters those may help as well.

Mar 24, 2009 | JVC AV-27920 27" TV

1 Answer

Picture getting dark


My jvc 27" tv was so dark I could hardly see any night scenes, even with the bright all the way on. If you push the sleep button, let go, then hold down the video and display (together), the service menu will come on. Scroll down to #7 (too dark) and adjust the brightness there. Works immediately. Good luck.

Nov 29, 2008 | JVC AV-27530 27" TV

1 Answer

Picture is too dark


How many years is your TV now? Usually TV has its life span, there comes a time that it happens. And need to look for a technicians, cause some of theme can still be repair by adjusting the brightness inside your TV.

Oct 19, 2008 | JVC AV-27530 27" TV

1 Answer

Picture is very dark and has a blue haze to the darker areas


Theres no adjustment except the tvs On screen disply is what you should ONLY fool with. Anytime you have the option you do and your not happy with it . GO for it!!! get a full refund and start over with another one or go to another store. Good Luck

Jun 21, 2006 | Mitsubishi WD-52327 52" Rear Projection...

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