Question about Proton MM2701VT 27" TV

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DARK SCREEN My friend and I each purchased 21 in. flat screen Zeniths about 5 years. Picture on both has never been great, but it seems to be getting darker to the point where on some channels picture is almost blacked out. Changing settings does not seem to help.

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  • les_lee Dec 13, 2008

    I have tried contrast every which way

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Have you changed contrast

Posted on Dec 13, 2008

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1 Answer

Did attatching HD Antenna fry my HDTV?


"the screen is nearly constantly with the exceptions of..." What does that mean?
If your antenna has a power supply it may have malfunctioned and fried your TV's tuner. Forty inch flat screens go for about $400 and up these days.
It could also be a coincidence, that the TV was expiring just when you hooked the antenna up.

Nov 04, 2013 | Standard (CRT) Televisions

1 Answer

The picture on my 31"


It sounds like the tube has burnt out. Now that price of lcds have come down especially in that size class it will cost just as much to repair as it would be to purchase a new tv.

Aug 11, 2011 | Panasonic CT-36D32 36" TV

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

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


Sorry to tell you but JVC is a well-known un-reliable brand and if it's cheap, probably even worse. U may have screen burn from leaving a games console on while plugged into the tv, even if its not showing the game, it will burn it onto the screen. :(

Mar 24, 2009 | JVC AV27F476 27" TV

1 Answer

Screen is too dark


with a flashlight at the back of the set often times there is an adjustment you can make WITHOUT having to open the set!!!

look for a little hole in the back of the plastic cabinet labeled SCREEN then with a flat screwdriver holding only the plastic handle, insert it into the hole and SLOWLY rotate until the screen brightens up until it is watchable.

This is compensating for age in the picture tube. you may get a few day or a few more years! of a much better picture.

If you start seeing some thin lines on the screen then back off you have gone too far. Do this adjustment with the brightness and contrast controls on the menu turned up all the way.

it is also safe to play with the focus adjustment right next to the screen if thing seem a little blurry. you will need two people one to watch from a distance for best picture.

Feb 10, 2009 | GE 31GT660 TV

1 Answer

Picture darker/less color/smaller until warm up


Hi there!
Have you checked for dust on the Tubes and mirror? This may cause a bad picture quality. Also power supply related problems like capacitors can cause a dark picture. Try replacing some of them in the power supply area and line stage.Also adjustments in the service mode,but for this you will need the service manual. Good Luck,JUS004

Oct 15, 2007 | Mitsubishi VS-55707 TV

1 Answer

Dark screen/picture.


This 30" flat screen TV set may have a problem in the high voltage circuit of the TV set. You may be able to adjust this by taking off the back of the TV set. Look for the block where the large red wire runs up to the top of the picture tube. On this block will be two controls. one will say screen and one will say focus. Try and slowly turn the control that says screen or S on it clockwise and see if you can make the picture brighter. Turn up the control till you just start to see faint lines in the picture, then back the control down till the lines go away. If the picture does not come up when you turn this up, and all you get is a blank screen, you will need to have this set repaired by a qualified repair person. Good Luck

Jul 14, 2007 | Sanyo HT30744 TV

2 Answers

Picture is dark


Does not seem like a bad tube alone. Could also be that the Video output Transistors Supply Filter capacitor having dried out. It is a 100mfd 160V capacitor, which on replacement will improve the brightness of the immage. And yes, you could also try increasing the heater voltage (Filament Voltage)of the Pictuire tube, this will definitely increase brightness, but will reduce the life of the Picture tube. You gotta think - 10 year old TV, should I repair or exchange and get a new one???

Mar 03, 2007 | Zenith Z27X22D 27" TV

1 Answer

Colors are distorted, brightness excessive


You may have a bad Fly Back transformer. The focus and screen(brightness) controls are located on this transformer. Some of the new RCA's have had problems with this transformer. If the screen control opens up the picture may either go dark or light which would cause your problem. Also a bad Picture tube could cause this. It shouldn't since the tv is not very old though. I've seen a few new ones go bad. Stargazer

Jan 29, 2007 | RCA 35V432T 35" TV

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