Question about Hitachi 51F500 51" Rear Projection HDTV-Ready Television

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SCREEN IS DARK - IF FULLY INHANCE ALL ADJUSTMENTS STILL BARELY ABLE TO SEE - ON THE ADJUSTMENT THE SHARPNESS ADJUSTMENT DOES NOT LIGHT UP

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  • cove creekk Feb 08, 2008

    i can't get the manual convergence to work properly - the lines won't turn white - now the equal bars won't turn red blue white - the red won't show up now

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  • Master
  • 4,402 Answers

Ran a magic focus once do you get an error?

Posted on Feb 08, 2008

  • Cary Farah
    Cary Farah Feb 11, 2008

    Sounds like the convergence chips are bad or loose connection.

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My 19 in. is not possible to adjust the color, tint and sharpness bars. It skips, what will I do to make the adjustments?


If the set is running in some type of component mode or digital component mode, there is no adjustment for color or tint.

Sep 21, 2014 | Dynex DX-LCD19-09 19 in. LCD TV

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My sharp 32c540 picture is dark since i bought it brand new 6 years ago.


You may just have to make a different kind of adjustment.

This is what is called a direct view or crt type TV.

Inside on the main board (see attached photo) is the "flyback" transformer.

Note the two little controls embedded in it----top one is focus--leave it alone.

Lower one is SCREEN and a very slight upwards or right adjustment will bring the overall brightness up.

You want to adjust it just till with brightness on set all the way up you have a normal picture.

Too much and you get excessive brightness and trace lines and or further too much shuts set off.

Some sets have two holes in back of cabinet and small tool can get in and adjust the LOWER or screen control and others the back has to be removed.

Lay set face down on padded surface, remove back screws and set upright---do not touch anything inside with set on when you make the adjustment--control is plastic and a plastic tool a good idea--I have used regular screwdriver but know what not to do.

Let me know if you have questions 98% chance just need the Master Screen bumped up a little bit.

Mar 11, 2012 | Televison & Video

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Picture is very blue most times.This is a light blue, but makes viewing difficult. Also before this issue came about, you could see a faint set of arcing lines running across screen especially when screen...


You can try adjusting the Blue color output. (Very touchy and dangerous adjustment)

If you take off the front cover/speaker cover, there should be a access panel. Behind that, there should be a small rectangular black box with 6 screws on it. This is the focus block. (At least this is where most of them are located) If there is no front panel, It may be located on or near the flyback (High Voltage) transformer on your model accessible from the back instead.

It sounds like you may need less Blue in the mix. There is a screw for each color. R, G, and B. Do not mess with the focus screws, just the ones labeled 'SCREEN.' They may have silicone over them to prevent them from moving. If so, you will need to remove it and put more on when adjustment is complete.

Go to an unused input where the screen should be dark. Barely turn the blue down in a dark room so that the Blue spot is at the same level as the Red and Green.

Use an insulated screwdriver and DO NOT TOUCH the focus block and ESPECIALLY NOT the back of it.
Very HIGH VOLTAGE. I found that out the hard way.

Do not turn any of these up too high or damage may occur to the tubes. If you turn them up too much, the TV may detect a short and shut off. this is a normal fail safe. These only need VERY slight adjustments.

I have found that if the three colors are adjusted in a dark room to where the 3 color spots (R/G/B) are just barely visible on the screen at equal levels, there is a pretty good color balance.

I hope this helps! Just be careful. Once again - LETHAL HIGH VOLTAGES ARE PRESENT WHEN UNIT IS ON!!!!!!

Apr 19, 2010 | Sony KP-65WS500 65" Rear Projection...

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...

1 Answer

Toshiba 35A44 Screen dark despite max brightness setting some OK


could be the sharpness, color, brightness, or a combination of them

May 05, 2009 | Toshiba 35A44 35" TV

1 Answer

Pictures appear to be darker than original in print outs.


You can make several adjustments to improve your images such as lightening dark areas, changing the exposure, sharpening blurred edges, and changing the brightness and contrast.
  • Exposure adjusts the overall intensity of light in an image.
  • Adaptive Lighting improves only the dark areas in an image without affecting the bright areas.
  • Brightness adjusts the amount of light in colors ranging from light to dark.
  • Contrast adjusts the difference in brightness between light and dark areas of an image.
  • Sharpness helps define edges and the smoothness of texture in an image. Use this tool to make a blurred image appear more focused.
Adjusting the image Follow the steps below to make adjustments:
  1. Click the View tab and select the image you want to edit by either clicking the image, or by clicking the small box at the bottom left corner of the image. Figure 1: Select the image c00603524.gif
  2. Click the Edit tab and then click the Advanced tab.
  3. On the Advanced tools tab, click Adjust Image .
  4. Select an adjustment from the list on the left. Figure 2: Adjusting the brightness c00603525.gif
    • The Exposure adjustment is automatically applied when the Adjust Image tool opens. Eight variations of the image are displayed on the left. The current image is displayed in the center. Each image represents a different level of adjustment. When you move the pointer over any of the images on the left, a large version of the image is displayed. Use Preferences to turn this large image preview on or off and to set the timing for the display.
    • If you want to use a different adjustment tool, select Adaptive Lighting , Brightness , Contrast , or Sharpness from the list.
  5. Select one of the images on the left.
  6. Do one of the following:
    • Click Accept to accept all changes and exit from the Color Toolkit.
    • Click Cancel to discard all changes and exit from the Color Toolkit.
  7. If you have finished modifying the image, do one of the following to save your changes:
    • Click Save to overwrite the original image.
    • Click Save As to save the modified image with a different name.

Aug 25, 2008 | HP Photosmart D7160 InkJet Printer

1 Answer

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

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...

1 Answer

Image adjustment functions


SHARPNESS - The function is to adjust sharpness of capturing images. CONTRAST - The function is to adjust contrast (distinction between light and dark) of capturing images. SATURATION - The function is to set color depth of capturing images. GRADATION - In this function, you can select the brightness of an entire image. It is suitable when you want to add a brighter effect to a bright object (Hi Key) and a darker effect to a dark object (Low Key).

Sep 04, 2005 | Olympus EVOLT E-300 Digital Camera

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