Question about Toshiba 53H71 53 in. Rear Projection Television

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Toshiba 53" Dull Screen. No brightness and Contrast.

Could not see the picture. The brightness, sharpness, contrast adjusted and tried at the maximum. Still the same. We need to put off all the lights in the room and make dark, then only the pictures are visible and its blurred too. How can I sove this problem. Or any replacement for this item. I am in Kuwait.

Please help me to solve this problem.

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Re: Toshiba 53" Dull Screen. No brightness and Contrast.

I would guess the tubes are going...I would still have serviceman check it out

Posted on Jan 22, 2008

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The Picture on my HD-52G886 Model is really kind of dark I can still see the picture and sound is fine but a little to Dark when I try to brighten it then its really dull white.

Changing the contrast will also help brighten your screen. For best results, try changing the contrast and the brightness, to find the perfect combination for your needs.

Jul 19, 2011 | JVC HD-52G886 52" Rear Projection HDTV

2 Answers

Too dark

well...the contrast comes to mind first, and then the color's all accessible from the menu, of course.

I'd start with contrast, and then look at the color temperature ratings..

Apr 27, 2008 | Pioneer SD-533HD5 53" Rear Projection HDTV

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I have an Hitachi 53sdx01B rear projection HD TV. Worked great until yesterday when it seemed like the contrast or brightness got out of whack. Whites appear to be overly bright, to the point that...

The tv have picture look like a bright dull hallow glow to the screen,yes,than the tv CRT tubes coolant chemicals is bad.Tries websites like, to buy a coolant kit to do the replacement.

Feb 05, 2011 | Hitachi 53SDX01B 53" Rear Projection...

1 Answer

My jvc 52g 887 had the bulb replaced 6/1/10. The picture is very dull with very little contrast. Is it the bulb?

A poor output lamp won't reduce the effective contrast so I expect it just needs slight adjustment to the contrast or brightness.
Hope that helps

Jan 25, 2011 | JVC Projection Televisions

1 Answer

Dark picture

Hmm my dad's old t.v. just cut out on him it took awile to turn on this my be the end of ur tv so this might be a power problem but older t.v. loose there colour on the screen my uncle had a like 10-15 year old t.v the screen was like green when it was light but when u turned of the light or closed the blind's it's picture was ok so try that.

Feb 02, 2010 | Hitachi 53FDX01B 53" Rear Projection...

2 Answers

In the past few day i've noticed the picture is

BRIGHTNESS. Your owner's manual probably says that the brightness setting is used to control "brightness" or "picture intensity" or something other fuzzy non-descript term. The truth is that brightness is used to set the BLACK level in the picture.
On most TVs and projectors in use today, brightness is set too high. That's because people think "a bright picture is good, so I will set it as bright as I can get." Well, that's nice in theory, but entirely wrong in practice. Setting the brightness level too high makes a black tuxedo look gray rather than black. It muddies up the shadow areas, and reduces the overall snap and crispness that the picture would have if properly calibrated.
To find the right setting for brightness, go to the image in your movie that has textured blacks and hopefully some shadow/low light areas in which there is detail. Then freeze on that frame. As you move the brightness control down, the intensity of the blacks will increase, and shadows will get darker. As you move the control all the way to zero, you will (hopefully) see that the low light shadow areas will also go to solid black and lose their detail.
The optimum setting for brightness is achieved at just the point where true black objects appear as black as your system will make them while retaining as much visible detail in the shadow areas. Above this point the blacks appear to go grayer. Below this point you lose detail in the shadows. On many video systems, this optimum point is toward the lower end of the brightness scale. But find the point that looks correct to you regardless of where it is on the scale.
CONTRAST. The contrast control is similarly confusing. It is also often set too high on the theory that contrast is good, and therefore we might as well get the most we can out of our set by turning it all the way up. In fact, the contrast setting is used to control the intensity of the brightest highlights in the picture, so it is (oddly enough) the opposite of brightness control.
First, find your test scene in which you find textured whites in bright light, and freeze that frame. You are looking for the brightest elements in the picture in which you want to retain visible detail.
Let's assume you have a whitewashed fence in sunlight. If you start with the contrast set low, the fence will appear light gray rather than white. As you move the contrast control up, the fence will get whiter. Eventually details in the texture of the fence will begin to disappear.
If you continue to push contrast past the optimum point, the wood-grain texture of the fence will go solid white and all visible detail will be obliterated. Push contrast up even a little further, and our fenceposts might actually appear to expand very slightly due to a glow around the edges. This phenomenon, called "blooming" is a definite sign that your contrast setting is overcooking the image (and maybe your picture tube as well—don't ever leave the contrast control set this high!!!)
Find the point at which whites look white while retaining as much texture detail as possible. This is your optimum contrast setting. On most video systems, this setting is toward the higher end of the scale, but it can be anywhere. Find the point that looks correct to you. (By the way, unlike TV's, digital projectors will not bloom)
Now…note the following: brightness and contrast can be to some degree interactive. Your new contrast setting may have affected your brightness. So return to the brightness scene and verify that your blacks are still black, and you still have maximum detail in the shadows. Adjust it if necessary, then return and adjust the contrast setting once again if necessary. (You can see that this is much easier if the black and white elements you are testing all appear in the same image!)
COLOR. The color control on your set determines the level of color intensity in the image. One of the most common errors people make in calibrating their video systems is overdriving the color. That's what makes Larry King look reddish-orange on the TV at the gym. Overdriving color is common because once again, people naturally think, "I want to get as much color as I can out of this color TV, so I will crank it up some to make sure I get the most out of it!" No. Bad mistake.
If you move the color setting down to zero you will notice that your picture will turn into a black and white image. The optimum setting for color is achieved by increasing the setting just to the point where colors look natural and not a bit more! Flesh tones should look natural and without any hint of an unnatural glow. Grass should look naturally green rather than screaming spray-paint green.
When adjusting color, make sure that your test image has relatively unsaturated colors. Flesh tones or natural landscapes are ideal. It is impossible to set color properly if you are using a brilliant red Ferrari as your test subject.
On the large majority of video systems, the optimum setting for color is somewhere near the middle of the scale. However, trust your eyes for the optimum setting and think "what looks like the most natural, accurate reproduction of reality?" Any overdriving of color will make the image look artificial.
TINT or HUE. The tint control adjusts color balance rather than color intensity. It is an easy control to set properly, but for some reason many people don't get it right. When flesh tones look either too green or too magenta, a phenomenon you see with amazing frequency, it is because the tint control is not set properly.
Find a human face and freeze-frame it. (In choosing your test subject, note that lighter skin tones will show errors in tint more readily than darker skin tones). As you move the tint control to one end of the spectrum, the face turns green; as you move it to the other extreme, the face turns magenta (red+blue).
The correct setting for tint is the point near the middle of the scale at which you can detect no hint of either green or magenta. It is the most neutral point between the two extremes. The flesh tone looks the most natural at this point.
SHARPNESS or DETAIL. The final setting is sharpness or detail. Now, pray tell, who in their right mind wouldn't want the sharpest, most detailed picture they could get? And since there is a control that lets you turn it up, why not turn it up? That's what many folks do, and of course it's exactly the wrong thing to do.
The sharpness control adds processed information to the picture that is NOT part of the original video signal. It adds artificially highlighted edges, and makes the picture look less natural than it otherwise would. This is most evident along the continuous edge of a dark object against a middle-toned background. When sharpness is overdriven the dark edge will be outlined by a white ringing effect that increases contrast just along the edge of your dark object. That edge "highlighting" effect is created by the sharpness control. It is an artificial manipulation of the image. It wasn't in the original scene, and it shouldn't be on your screen either.
On most televisions, the optimum setting for sharpness is zero. On many digital projectors, the optimum setting is either in the low or middle part of the scale. Picture tube televisions and digital projectors behave differently in this regard; on a digital projector it is often possible to fuzz the image by setting sharpness too low.
Now look at your picture with the sharpness turned down or off depending on what works best on your system. You will see a smoother, more natural image. It might take some getting used to, since you may be accustomed to viewing video with all the artificial edge enhancements that create the illusion of added sharpness.
However, when the interference and noise from the artificial sharpness enhancer is removed, you are seeing the most genuine reproduction of the video signal that your projector or TV is capable of. And if you view it for a while, you will gain an appreciation for just how smooth, natural, and satisfying the picture can really look.

Dec 12, 2009 | Sony Grand WEGA KDF-55XS955 55" Rear...

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I cant get the color right. its to red??? any help? i did notice with the back cover off, there are 6 adjustment screws

yes! those are the screen and focus adjustments. 3 for screen, 3 for focus. try this. go in menu....turn down color, brightness, contrast all they way down. you should then have no picture, but in your case a little red. then go to back of tv and turn those 3 screen adjustments all the way down. slowly turn the screens back up until you get barely a picture. because remember, your brightness and contrast is all the way down. the picture should be dim but seeable and with red, green, blue adjustments, make it a black and white picture. when balanced..... turn up color , brightness, contrast in menu. enjoy!

Nov 14, 2009 | Philips Magnavox 9P6034C 60" Rear...

2 Answers

How do I adjust the HD quality for a crisper picture? I have tried Magic Focus, but need to know where the sharpness or contrast can be tweeked .

The magic focus function is to electronically align the red, green and blue beams. So all it can cure is colored ghosts. The contrast, brightness and sharpness adjustments are in the customer menu settings. With the remote just push menu and select video or picture adjustments. Those adjustments are in there.

Jun 11, 2009 | Hitachi 57F500 57" Rear Projection...

1 Answer

Picture gradually going dark

turn the screen up a little on the flyback..

Dec 16, 2008 | Toshiba 50A61 50" Rear Projection...

1 Answer

Sony KP 53S65 53" rear projection TV contrast issue

While the root of the problem is likely the picture tubes aging, I'm sure it would benefit from a cleaning and adjusting. After the dust is cleaned from the lenses, the screen controls could likely be lowered to get the blacks you desire. An experienced tech would be able to do this for you.

Jan 03, 2007 | Sony KP-53S65 53" Rear Projection...

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