HARMAN KARDON DVD31
Service Manual

DVD31

harman/kardon

SYSTEM SETUP AND TEST SCREEN
originally recorded on video or shot on film. However, in some cases you may wish to compensate for errors in the disc authoring that occur when the frame rate is not properly maintained when films are converted to video. Three choices are available: � Auto: This is the recommended setting, as it lets the DVD 31 analyze the signals from the DVD and adjust the output accordingly. � Movie: Choose this option for optimal playback of material that was shot on film, even though you are viewing it on video via a DVD. � Video: Choose this option for optimal playback of material that was shot directly to video, such as concerts and sports programming. Video Adjustments Menu This menu allows you to adjust five key parameters of the video signal to compensate for differences between your DVD player and other video sources. You may use either the DVD 31�s built-in color bar test signal or a test disc as the standard for the adjustments. To ensure that your system is properly optimized, we strongly recommend that you adjust your video display using the display�s own controls before making any changes to the DVD 31�s output. Once the display is properly calibrated with all settings on the DVD 31 set to their midpoint, use the controls on this menu to fine-tune the DVD 31�s output. Due to the nature of these settings, the navigation is somewhat different from the DVD 31�s other menus and controls. The menu itself is called up in the same way as the other menus. Press the OSD Button ` to activate the main menu screen, and then press the K/LNavigation Buttons e so that SETUP is highlighted. Press the Enter Button z, and then use the K/L /� Navigation Buttons e until /� the VIDEO ADJUSTMENTS menu box (which contains an icon with slider controls and the word VIDEO, and is located at the bottom of the column in the Submenus Area �) is highlighted within a white outline. Then press Enter z again. When you press Enter z the video adjustments will appear inside a black bar at the top of the screen, with either the video from a disc being played or the splash screen shown on the rest of the screen. of a parameter name is highlighted to increase the setting or ��� to the right of a parameter name is highlighted to decrease the setting. Then press the Enter Button z to change the value as shown by the number of blue lines to the left or right of the center line. When only the dark center line is shown with no blue lines, the setting is at the midpoint default value. When adjusting the Black Level setting, note that the adjustment available is to either have the setting at the midpoint, which provides a full �0 to 100� black level setting, or �full�, which complies with standards for video with what is called �setup�, or a �7.5 to 100� black level setting. Changes to any of the settings may be made with a test disc playing, or you may use the internal test signal by pressing the K/L /� Navigation /� Buttons e until the word OFF is highlighted next to the TEST SCREEN line. To activate the test signal, press the Enter Button z and note that a special combination test signal, including both color bars and gray scale along with 100% black and white fields, will be displayed. To recall the video controls, press the OSD Button ` and then navigate among the settings and make any necessary changes following the steps in the previous paragraph. Test Screen With the test screen showing on your video display, the following adjustments may be made: � The proper color intensity setting on your TV. � Proper color adjustments using the color bars, which should be (left to right) black, white, yellow, cyan (turquoise), green, magenta, red, blue, black.
Color Bars

3. Adjust the brightness so that the bars in the gray scale are all visible. The bar furthest to the left has to be as black as possible rather than gray but the next gradation must clearly be distinct from it. All the bars in the gray scale should be gradually and evenly changing from black to white, left to right. Contrast Adjustment: 1. Adjust the contrast on your TV until you see a bright white bar in the lower right corner of the screen and a deep-dark-black bar to the left. The optimal contrast setting will depend on your preference and the surrounding light in the TV room. 2. If the brightness of the white bar no longer increases when the contrast is turned up or the borders of the white �harman/kardon� letters on top bloom (overlight) into the black areas (drastically decreasing the sharpness of the type), the contrast has been turned up too much. Reduce the contrast until these effects disappear and the video still looks realistic. 3. If you are watching TV with customary surrounding daylight, adjust the contrast so that a normal video picture has about the same look as the surroundings in your room. That way the eye is relaxed when watching the TV picture. This contrast setting may be reduced when the surrounding light is dimmed, thereby usually improving the sharpness of a video significantly. 4. The gray scale in the middle line needs to have the same clear difference between each bar as before the contrast adjustment. If not, go back to �Brightness Adjustment� and repeat Step 3 and then �Contrast Adjustment,� making only minor adjustments each time for optimization. Color Adjustment 1. When the brightness and contrast are set optimally, turn up the color control to the level of your preference. Adjust to the level where the colors look strong but still natural, not overdone. If the color level is too high, depending on the TV, some of the bars will seem wider or the color intensity will not increase while the control is turned up. Then the color control must be reduced again. Ultimately, you also should test the color intensity with a video � e.g., pictures of natural faces, flowers, fruit and vegetables, and other common natural articles for an optimal setting of the color intensity. 2. Use the large white bar below the gray scale to tweak the warmth of the picture. Every viewer has a preference as to how the glow of the picture should be. Some prefer a little colder picture, some a warmer glow. The Tint function on your TV and the white bar can be used to control this. Adjust the Tint to the level where you feel the white color has the tone you prefer.

Gray Scale 100% Black/White Fields

� The proper color transition, seen as sharp separation of the bars. � The performance of the color circuits in your TV (with �Video� signals); bar edges should show no vertical crawling dots. With the gray scale and the black/white fields below the color bars, the brightness and contrast of your screen can be adjusted. TV Picture Adjustment With Test Screen Brightness Adjustment: 1. Turn down the color control on your TV until the color bars are visible in black and white. 2. Adjust the contrast to the lowest level where you still can see all bars within the gray scale in the test picture separately and clearly.

To change any of the video adjustments shown at the top of the screen, first press the K/L /� /� Navigation Buttons e so that the �+� to the right

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SYSTEM SETUP AND TEST SCREEN

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