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Toshiba MT500 Manual

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Adjusting whiteness degree of white color of projected images (Setting COLOR TEMPERATURE)
One of preset color temperatures (degree of white color) is selected with menus.
(Refer to Page 25 for setting menus.)
1. Reveal the professional-use picture quality setting menu.
2. Select “COLOR TEMPERATURES” by pressing {, } buttons.
3. Press ENTER button.
4. Select a desired color temperature by pressing {, } buttons..
Åú A favorable color temperature depends on each one’s preference. Generally, 9300 is preferably selected
for viewing TV, 6500 is for viewing HDTV, and 5700 is for viewing movies.
Åú When “USER1” or “USER2” is selected, each corresponding color temperature adjusted by user setting
is selected.
To cancel the menus:
5. Press MENU button.
Adjusting degree of white color of projected images (User-adjustment of COLOR TEMPERATURES)
When setting (storing) user’s preferable color temperatures, use “User-adjustment of color temperatures”
in the professional-use picture quality setting menu.
(Refer to Page 25 for setting menus.)
To store the settings:
1. Reveal the professional-use picture quality setting menu.
2. Select “User-adjustment of color temperatures” by pressing {, } buttons. buttons.
3. Press ENTER button.
Åú The menu for user-adjustment of color temperatures appears.
4. Select a basic color temperature by pressing {, } buttons.
Åú Generally, select the most preferable color temperature from preset color temperatures.
5. Press ENTER button.
Åú The selected color temperature is indicated, and the whiteness of projected images changes according to
the color temperature.
6. Select the item to be changed by pressing {, } buttons.
7. Set the item by pressing ?, ? buttons.
Åú The projected images also change accordingly.
8. Repeat the settings by repeating no. 6 and 7.
9. Select “User 1” or “User 2” by pressing {, } buttons buttons.
10. Press ENTER button.
Åú The set color temperatures are stored in the memory.
To cancel the menus:
11. Press MENU button.
To bring one of the set color temperatures:
Select “User 1” or “User 2” in “Setting color temperatures” of the professional-use picture quality setting
menu.
On color temperatures
There is various degree of white color. One of the methods of representing degree of white color is color
temperatures. White color of low color temperature is reddish white, and that of high color temperature is
bluish white. In this projector, the color temperatures are set by varying each gain and bias of R (red), G
(green), and B (blue) signal.
To make the color temperature higher:
Set the value of B-gain (or B-bias) larger, and the value of R-gain (or R-bias) smaller.
To make the color temperature lower:
Set the value of R-gain (or R-bias) larger, and the value of B-gain (or B-bias) smaller.
One method of adjusting color temperatures is to make use of person’s skin color. Project a large still
picture of human face on the screen, and adjust the color tone of the face so that it may look favorable
(generally, it may look healthy).
Åú Generally, the gains are used to adjust bright pictures, and the biases are used to adjust dark pictures.
Åú Using the biases is effective in adjusting color of monotone pictures. (It is especially effective for
adjusting dark to intermediate portions.) For example, when the green is relatively strong, decrease the
value of R-bias, or increase the values of both B-bias and R-bias evenly. Also, when the projected images
are bluish, decrease the value of B-bias, and when they are reddish, decrease the value of R-bias. In this
way, favorable picture quality can be obtained.
COLOR TEMPERATURE
6500
9300
5700
USER1
USER2
SET USER COLOR TEMP
R GAIN
LOAD FROM
SAVE TO
G GAIN
B GAIN
R BIAS
G BIAS
B BIAS
5700 6500 9300 USER2
+256
+256
+256
+45
+45
+45
USER1
USER2USER1
SETTING WITH MENUS
… 32 …


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