Question about Hitachi 46F510 46" Projection HDTV

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Old hitachi have a picture but screen is dark and contrast is on high and remote doesn't work. is there adjustmest inside tv? for color and contrast

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The coolant most likely needs changing in the CRTs. Another possibilty is the mirror has become dull. use a damp soft cloth to clean the mirror then dry also clean the CRT lenses . Dont use windex. You will be amazed the difference just polishing the mirror can make in picture quality. Looking into the CRT lenses while they are on will tell you if any groth are present in the CRT coolant chambers.

Posted on Apr 09, 2008

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Voire 46" plasma tv- best color settings, to much white


The proper way to set flat screen tv's is opposite of old school CRT tv. First, find a movie with dark scenes and pause on a really dark part. Now set brightness only high enough to see some detail - no more. then go to a really bright scene and set contrast just high enough for good brightness. You may need to go back and forth a few times to get good setting.

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I have a proview lcd screen and it palys the tv shows in back ground but it's a dark screen like dark blue no picture. Volume and everything working but just no picture. What can i do.


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The remote does not work and the tv will not accept an universal remote.How can I adjust the color, brightness, contrast, and etc. with out a remote. The screen is dark and can not be adjusted without a...


Tries press the tv menu button on the tv front frame bazel to select color,brightness,contract so on...Adjust ur setting.Try website like remotes.com to buy an a exact to the original remote.

Oct 20, 2010 | Panasonic PV-20DF63 20 in. TV/DVD Combo

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1) I own a Quasar TV model# SP 3232A. I have a dark screen but good sound.What are the possible troubles. 2)Is a service manual available for this model


If the screen is dark, then the brightness and contrast adjustment must be poor. Use the MENU key (in the TV or the Remote, either) adjust the brightness and contrast as per your viewing convenience. Service manual for this model is not in my knowledge and you should not try to repair or troubleshoot it by yourself without proper knowledge of the circuit workings inside.

Jan 23, 2009 | Quasar SP-3233 TV

1 Answer

The Contrast and Brightness on tv appears to be dark.


If this is a CRT-based TV and it's been played most of the time, you may have a bad picture tube, especially if strong red colors bleed to the right. CRT's dim with use, unlike LCD or plasma. But it could also be trouble in the video circuits - none of this falls into the DIY category, unfortunately. High voltage involved, unless you're comfortable around it and want to try turning up the screen controls inside the TV. If you do, let me know - but "no response at all" from the external adjustments points to a more serious problem.

Dec 10, 2008 | Toshiba 36AF41 36" TV

2 Answers

Dark picture


do you get all three colors? red, blue and green?

Dec 16, 2007 | Panasonic PT-51G44 51" Rear Projection...

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.

Aug 21, 2007 | JVC AV-27D104 27" 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

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Picture adjustment questions


*The brightness control setting determines how bright your picture will be. *The contrast control sets the gain of the video circuit. This determines the difference between dark and light scenes. Low contrast settings make the picture "hazy". High contrast settings make the picture more distinction between dark and light scenes. *The sharpness control determine the frequency response of the video circiut. High sharpness settings give better resolution but also shows more noise in your picture. Lower sharpness settings smoothe out the picture removing noise but also fine detail. It needs to be set for the best all around picture. *Picture Enhancement is pre-set adjustments which give you different picture qualities. You just select the one you like. Stargazer

Mar 03, 2007 | Zenith B25A02Z TV

1 Answer

Dark Blue Screen


You might've done this already, but first I would try the "Magic Focus" The button can be found all the way to the left of the buttons panel on the tv itself. If that has no effect, try playing around with the settings within the tv. Click menu on the remote and see what happens when you try settings like color, balance, and contrast. Report back.

Nov 15, 2006 | Hitachi 46W500 46 in. TV/DVD Combo

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