When I set my PT-D5500UL contrast mode to HIGH the picture have less light than when contrast mode set to NORMAL, is this okay or....because there should be more light when is set to HIGH?

Potential causes and solutions:

High Contrast Mode:
Some TVs have a high contrast mode that can inadvertently cause the picture to appear negative or distorted.
Try this: Hold down the volume button on your Samsung TV remote and navigate to the settings related to contrast. Turn off the high contrast mode, and see if that resolves the issue.

HDMI Connection Issues:
A loose or faulty HDMI connection between your TV and an external device (such as a cable box, gaming console, or streaming device) can lead to color abnormalities.
Check the HDMI cable for damage and ensure it is securely plugged in. If necessary, try a different HDMI cable.
Additionally, an HDMI handshake failure during setup can cause color problems. Restarting both the TV and the connected device might help.

Picture Mode Settings:
Sometimes, the picture mode on your TV affects color accuracy. Modes like "Vivid" or "Dynamic" may exaggerate colors.
Switch to a more standard mode like "Standard" or "Cinema" to see if the pink tint disappears.

T-Con Board Issues (Specific to Some TVs):
If you have a Samsung TV, a polluted T-Con flat cable could be the culprit.
To address this, clean the contacts on the T-Con board using isopropyl alcohol. First, remove any dust. If unsure, consider seeking professional assistance

You need to shutoff High contrast mode Turn on High Contrast and change the settings

you need to change the 'zoom' on the tv by the remote.
Normal mode frames the 4:3 video to the 16:9 picture area by displaying it in its original aspect ratio, with vertical gray or black bars on both sides of the screen. The disadvantage of this method is the fact that the image is small by virtue of not using the entire width of the screen. This is also known as the 4:3 mode.
Full mode Full mode horizontally stretches the 4:3 video evenly across the entire width of the screen. This is the proper mode to display anamorphic video. If used for standard aspect ratio video, everything on the screen will appear wider than normal. Contrast this with anamorphic video displayed without processing on a 4:3 display, in which people on the screen will appear taller than normal. This is also known as the 16:9 mode.
Zoom mode Zoom mode evenly stretches the picture both horizontally and vertically, until the picture fills the entire width of the screen. This crops out the top and bottom of the picture. This mode is used for letterboxed and open matte video.
14:9 mode Main article: 14:9
In 14:9 mode, the picture is magnified more than in Normal mode, but less than in Zoom mode, while retaining the original aspect ratio.
Wide Zoom mode Wide Zoom mode, also called Just mode, Horizon, or Smart Stretch, progressively stretches the picture horizontally, less in the middle and more on the edges. This allows normal aspect ratio video to be displayed across the entire width of the screen, with minimal cropping, and with much less of the unpleasing visual stretching effect of Full mode.

Please check the light settings and change from high sensitivity to even a manal mode or a bright sunlight setting.
It is possible that the incident light is too powerful and so changes the auto light sensor to give a correction to the CCD so as to make it less brighter.
You can also try and use filters that can reduce the glare but give a better picture contrast.
If not use the manual mode, correct the speed and aperture.

This may help you...you can also get an owners manual free on line.


English - 23
Using Automatic Picture Settings
Your TV has Three automatic picture settings ("Dynamic", "Standard", "Movie") that are preset at the factory.
You can activate either Dynamic, Standard, Movie by making a selection from the menu.
1. Press the MENU button to display the menu.
Press the ENTER button, to select "Picture".
2. Press the ENTER button to select "Mode".
Press the ??² or ??¼ buttons to select the "Dynamic", "Standard", "Movie" picture
setting. Press the ENTER button.
?³ Choose Dynamic to increase the clarity and sharpness of the picture.
?³ Choose Standard for the standard factory settings.
?³ Choose Movie for a natural Image without picture enhancements.
3. Press the ??² or ??¼ buttons to select "Contrast", "Brightness", "Sharpness",
"Color", or "Tint(G/R)", then press the ENTER button.
4. Press the ??? or ??? buttons to decrease or increase the value of a particular item.
For example, if you select "Contrast", pressing the ??? button increases it.
Press the ENTER button.
Press the EXIT button to exit.
• When you make changes to Contrast, Brightness, Sharpness, Color, Tint(G/R)
the OSD will be adjusted accordingly.
• When in PC mode, Tint, Sharpness, and Color are not available.
Press the P.MODE button on the remote control repeatedly to select the desired
picture mode.
Picture Control
Move Enter Return
Mode : Dynamic ???
Contrast 1 00
Brightness 50
Sharpness 85
Color 55
Tint G 50 R 50
Balck light 1 00
??¼More
TV Picture
Move Enter Return
Mode : Dynamic
Contrast 1 00
Brightness 50
Sharpness 85
Color 55
Tint G 50 R 50
Balck light 1 0
??¼More
TV Picture
Dynamic
Standard
Movie
Move Enter Return
Mode : Dynamic ???
Contrast 1 00
Brightness 50
Sharpness 85
Color 55
Tint G 50 R 50
Balck light 1 0
??¼More
TV Picture
50
??² Con trast ??¼
Move Adjust Return
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Adjusting the Color Tone
You can change the color of the entire screen according to your preference.
1. Press the MENU button to display the menu.
Press the ENTER button to select "Picture".
2. Press the ??² or ??¼ button to select "Color Tone", then press the ENT ER button.
3. Press the ??² or ??¼ button to select "Cool2", "Cool1", "Normal", "Warm1",
or "Warm2".
Press the ENTER button.
When the picture mode is set to Dynamic or Standard, Warm1 and Warm2
cannot be selected. Movie mode is only available.
Move Enter Return
??²More
Color Tone : Cool2 ???
Detailed settings ???
Size : 16 : 9 ???
Digital NR : Low ???
Active Color : On ???
DNle : On ???
Reset : OK ???
TV Picture
Move Enter Return
??²More
Color Tone : Cool2
Detailed settings
Size : 16 : 9
Digital NR : Low
Active Color : On
DNle : On
Reset : OK
TV Picture
Cool2
Cool1
Normal
Warm1
Warm2
Activating Backlight
You can adjust the screen brightness by adjusting the LCD backlight brightness. (0~10)
1. Press the MENU button to display the menu.
Press the ENTER button to select "Picture".
2. Press the ??² or ??¼ button to select "Backlight", then press the ENTER button.
3. Press the ??? or ??? button to decrease or increase the valueof the backlight
brightness.
Press the ENTER button.
Press the EXIT button to exit.
Move Enter Return
Mode : Dynamic ???
Contrast 1 00
Brightness 50
Sharpness 85
Color 55
Tint G 50 R 50
Balcklight 1 0
??¼More
TV Picture
5
??² Balcklight
??¼
Move Adjust Return
Move Enter Return
??²More
Color Tone : Cool2
Detailed settings
Size : 16 : 9
Digital NR : Low
Active Color : On
DNle : Off
Reset : OK
TV Picture
OK
Cancel
Resetting the Picture Settings to the Factory Defaults
1. Press the ??² or ??¼ button to select "Reset", then press the ENTER button.
Press the ??² or ??¼ button to select "Cancel" or "OK" then press the ENTER button.
Press the EXIT button to exit.
Each mode can be reset.

There is a possibility that the screen voltage preset or the Resistor givng the screen voltage had failed. You can get a confirmation by increasing the screen voltage and provided it does not come down you can leave it as it is. Also the failure of the capacitor in the screen voltage circuit( normally 22mf/250V) could also result in the same fault. be sure to be familiar to investigate or else get professional help to change these part. it is not a serious fault anyway.Unless you have used your set in very high contrast there is no reason for the picture tube to be weak.

I'm happy with:

backlight +16
contrast +40
brightness +1
colour -13
tint 0
shaprness +2

although I found this setup but haven't tried it yet

backlight +5
contrast +24
brightness -7
colour +50 (review I found didn't say + or -. Try both
tint 0
sharpness -5

Len

it depends on what your using it for, adjust colour tones to what you think looks natural, contrast between 80-90, keep sharpness below 30. just have a play around till you find what best suits the source material.

*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

The details for each record mode are as follows: RAW: RAW data is unprocessed image data in its original state to which white balance, sharpness, contrast, color conversion and other processes have not been applied. CAMEDIA Master can be used to display RAW data and save it in other image formats. A RAW plug-in is also available for Adobe Photoshop which also provides the ability to process images in 32-bit color depth. TIFF: This is the highest-quality mode. images are saved as uncompressed data, which is the best for printing or image processing on a computer. SHQ: This is a high quality mode using the JPEG format. Because the compression rate is very low, high quality images can be stored. HQ: This is a high quality mode using JPEG format, with medium compression. Because the compression rate is higher than SHQ, file sizes are smaller. More images can be saved to a card. The file size can be changed in the 3:2 or Enlarge size mode as well as SHQ. 3:2 Mode: Ordinarily the image aspect ratio is set to 4:3. Due to change the ratio to 3:2, the picture size becomes 2592 x 1728 so that the image can be printed without losing the image borders at a photo lab. 3:2 can be set in the TIFF, SHQ, or HQ mode. SQ1: SQ1 uses the highest compression for resolutions greater than 1600 x 1200. You can choose high compression to reduce noise or normal compression to save more images. SQ2: SQ2 uses the highest compression for resolutions less than 1600 x 1200. You can choose high compression to reduce noise or normal compression to save more images.