Epson Powerlite 7500c Multimedia Projector Users Guide

							Using the Software
101
2. Click the tab for the settings you want to adjust.
3. Change one or more of the following options.Video Tab (Computer Input) Option Description
Brightness Adjusts screen brightness. 
Contrast Adjusts screen contrast. 
Sync Adjusts the sync (synchronization) to remove screen flicker.
Tracking Adjusts tracking to remove vertical lines.
Color Adjusts the balance of red, green, and blue in the image.
Position  Adjusts the horizontal and vertical screen position.
Auto Set Up Enables or disables automatic adjustment of the graphic signal being sent 
from the computer to optimize it for the projector.
Pattern Display Enables or disables display of the test pattern currently selected.
Reset Resets all fields to their default values.
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Video Tab (Video Input) Option Description
Brightness Adjusts screen brightness. 
Contrast Adjusts screen contrast. 
Sharpness Adjusts screen sharpness.
Color Adjusts the color density.
Tint Adjusts the color tint (NTSC only).
Mode Selects the signal format. You can select AUTO, PAL, NTSC, or SECAM. 
AUTO automatically adjusts the image to the signal received.
Pattern Display Enables or disables display of the test pattern currently selected.
Reset Resets all fields to their default values.
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Audio Tab Option Description
Volume Adjusts sound volume. 
Treble Adjusts the treble tone.
Bass Adjusts the bass tone.
SRS SPACE Adjusts stereo sound. Increasing the value increases the stereo sound 
separation.
SRS CENTER Adjusts stereo sound. Changing the value balances the SRS sound.
Pattern Display Enables or disables display of the test pattern currently selected.
Reset Resets all fields to their default values.
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Setting Tab Option Description
Blank Specifies blank screen states:
Logo  The user’s logo displays briefly.
Black  A black screen displays.
Blue  A blue screen displays.
Color Temp Adjusts the whiteness of the screen. Positive color temperature values 
provide a cold white; negative values provide a warmer white. Press the right 
arrow button on the control panel or press right on the remote’s pointer 
button to increase the color temperature value; press the control panel’s left 
arrow button or left on the remote’s pointer button to decrease the color 
temperature value.
Install Specifies how the projector is being used:
Rear Proj.  Use this setting when projecting to the back of a screen so the 
image is flipped left to right.
Ceiling  Use this setting when the projector is installed on the ceiling 
so the image is flipped top to bottom.
Prompt Temporarily displays a prompt on the projector screen identifying which 
source (computer or video) is providing the image.
Mode Specifies the input image signal mode. User can select from AUTO, NTSC, 
NTSC 4.43, PAL, PAL N, PAL M, PAL 60 and SECAM.
Pattern Display Displays the test pattern currently selected.
Reset Resets all fields to their default values.
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							Using the Software
105
Changing the Test Pattern 
1. Click Test Pattern on the Projector Setting window. The 
following window appears:
2. You can display a test pattern to verify that the projector is 
working properly. Choose one of the following: 
Color Image Displays a color bar test pattern.
Gray Scale Displays a grayscale test pattern.
Focus Pattern  Displays a character-based focus pattern.
User File (bmp)
Displays a bitmap test pattern from the file
  name specified. Either type the name or click
Ref...
 (refer) to browse the hard disk for the 
file.
The bitmap should be 1024 
× 768 pixels
(PowerLite 7500C) or 800×600 pixels
(PowerLite 5500C).
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3. Click Pattern Display 
to display the test pattern selected. Then 
click Close.
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Specifying an Image Gamma 
1. Click Gamma on the Projector Setting window. The Gamma 
Setting window appears.
2. Select the desired gamma:
Gamma 1  Provides a dynamic and contrastive image.
Gamma 2 
Provides an image between Gamma 1 and 
Gamma 3.
Gamma 3  Provides a natural image.
3. Click Pattern Display to display the test pattern selected. Then 
click Close.
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Creating a User Logo
You can create or edit a logo from the Projector Setting window, 
then save it to a file on your hard disk or download it to the 
projector.
1. Click User’s Logo on the Projector Setting window. The User’s 
Logo Setting window appears.
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2. Click the Edit button. The following window appears.
3. Click the Open the File icon to locate and open a bitmap (or 
TIFF, JPG, PSO) file. The selected image appears in the display 
area.
4. To crop the image, click the Select Area button and position the 
crop marks. Click OK to accept the changes. The User’s Logo 
Setting window reappears.
5. To increase or decrease the size at which the logo displays, 
select a zoom percentage from the Zoom list box.
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6. Click the Save button to save your logo to your hard disk. The 
Save As dialog box appears. Type a name for your logo, using 
the .lgo extension, then click OK.
Note: You must save logo files with the extension .lgo.
7. To download a logo file to the projector, click the Download 
button and follow the instructions on the screen.
8. Click Close to return to the Projector Setting window.
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