Optoma H57 Projector User Manual

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Image-I
Display Mode
There are five factory presets optimized for various types of
pictures: Cinema, Normal, Vivid ,Dynamic and User. You can
customize contrast, brightness, color, tint, sharpness, and gamma
for each preset mode.
Contrast
The contrast controls the degree of difference between the lightest
and darkest parts of the picture. Adjusting the contrast changes
the amount of black and white in the image.
4Press the  to decrease the contrast.
4Press the  to increase the contrast.
Brightness
Adjust the brightness of the image.
4Press the  to darken image.
4Press the  to lighten the image.
Colour (saturation)
Adjusts a video image from black and white to  fully saturated
color.
4Press the  to decrease the amount of color in the image.
4Press the  to increase the amount of color in the image.
Tint
Adjusts the color balance of red and green.
4Press the  to increase the amount of green in the image.
4Press the  to increase the amount of red  in the image.
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Display mode
Contrast
Brightness
Colour
Tint
Sharpness
Gamma
Computer / Video Mode
User Controls
Cinema      NormalVividDynamicUser
™“Colour” function is
not supported under
YPbPr source.     
						

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User Controls
Image-I
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Display mode
Contrast
Brightness
Colour
Tint
Sharpness
Gamma
Computer / Video Mode
Cinema      NormalVividDynamicUser
Sharpness
Adjusts the sharpness of the image.
4Press the  to decrease the sharpness.
4Press the  to increase the sharpness.
Gamma
Gamma affects how dark scenery is displayed. With a greater
gamma value, dark scenery will look brighter. Use 
   to adjust
gamma values.
™“Sharpness”
function is not
supported under
YPbPr and YCbCr
source.     
						

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Image-II
User Controls
RGB
Colour temp.
DLP gamma
DLP white peaking
Reset
Computer / Video Mode
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Press OK  to adjust
 Mid
Press OK  to reset
RGB
Press OK to adjust the R (Red), G (Green), or B (Blue) for bright-
ness and contrast.
Color Temp.
The color temp control adjusts the color temperature of the
image.  At a higher temperature, the screen looks colder; at a
lower temperature, the screen looks warmer.
DLP Gamma
Gamma affects how dark scenery is displayed. With a greater
gamma value, dark scenery will look brighter. Use 
   to adjust
gamma values.
DLP White Peaking
The white peaking control adjusts the white segment of the DMD
chip. “0” stands for minimal peaking, and “10” stands for
maximum peaking.  If you prefer a stronger image, adjust toward
the maximum setting.  For a smoother, more natural image,
adjust towards the minimum setting.
Reset
Press OK to return the display parameters on all menus to their
factory default settings.   
						

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Display Format
Use this function to choose your desired aspect ratio.
4Windows : The input source will be compacted in the
center with scaling.
44:3 : The input source will be scaled to fit the projection
screen.
416:9 : The input source will be scaled to fit the width of the
screen.
4Letterbox: Letterbox mode zooms a letterboxed image
intended for 4:3 display to full screen wide.
Frequency
“Frequency”changes the display data frequency to match the
frequency of your computer’s graphic card. If you experience a
vertical flickering bar, use this function to make an adjustment.
Phase
“Phase” synchronizes the signal timing of the display with the
graphic card. If you experience an unstable or flickering image, use
this function to correct it.
Original InputThe letterbox
Image-III
User Controls
Format
Frequency
Phase
Position
Keystone
Zoom
Computer/Video Mode
Press OK  to adjust
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User Controls
Position
Adjust the image position. Press OK to adjust
4Vertical Position
Press the 
 or  to move the image down or up.
4Horizontal Position
Press the 
 or  to move the image left or right.
Keystone (Keystone Correction)
Adjust image distortion caused by tilting projector. (±16 degrees)
Press OK to adjust
4Vertical keystone: Press the  or  to adjust image distortion
vertically and makes a squarer image.
4Horizontal keystone: Press the  or  to adjust image
distortion horizontally and makes a squarer image.
Zoom
4
Press the  to magnify an image on the projection screen.
4Press the  to diminish the zoom in image.
Image-III
Computer/Video Mode
™“Position” function is
not supported under
DVI-I source.
Vertical  keystone
Horizontal keystoneVertical position
Horizontal position
Format
Frequency
Phase
Position
Keystone
Zoom
Computer/Video Mode
Press OK  to adjust
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User Controls
Menu Location
Choose the menu location on the display screen.
Projection
4
Front-Desktop
The factory default setting.
4Rear-Desktop
When you select this function, the projector reverses the image
so you can project behind a translucent screen.
4Front-Ceiling
When you select this function, the projector turns the image
upside down for ceiling-mounted projection.
4Rear-Ceiling
When you select this function, the projector reverses and turns
the image upside down at same time. You can project from
behind a translucent screen with ceiling mounted projection.
Lamp
Press OK to adjust.
Management
Menu  location
Projection
Lamp
Source lock
Computer/Video Mode
Press OK  to adjust
On Off
Lamp reminding
Lamp hours
Lamp reset
Brite modeYes N o
Yes N o
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Management
4Lamp Reminding: Select this function to show or hide the
warning message when the lamp replacing reminder message
is displayed. The message will show up when the lamp
reaches 1500 hours at start-up screen. See “Replacing the
Lamp” for more details.
4Lamp Hours: Display the cumulative lamp operating time.
4Lamp Reset: Reset the lamp life hour after replacing a
new lamp.
4Brite Mode: Choose “On” to increase the brightness and re
duce the contrast ratio. Choose ”Off” to return normal mode.
Source Lock
When source lock is turned off, the projector will search for other
signals if the current input signal is lost. When source lock is
turned on, it will search specified connection port.
User Controls
Menu  location
Projection
Lamp
Source lock
Computer/Video Mode
Press OK  to adjust
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PIP
Choose “On” to select on the PIP screen.
Position
Choose the PIP screen position on the display screen.
Source Change
Choose the input source of the projector on the PIP screen.
Swap
Choose “Yes” to swap main screen and PIP screen each other.
PIP
User Controls
PIP
Position
Source change
Swap
Computer/Video Mode
On Off
Yes N o
Yes N o Image - I Image - II Image - III
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Appendices
Problem: No image appears on screen.
4Ensure all the cables and power connections are correctly and
securely connected as described in the “Installation” section.
4Ensure the pins of connectors are not crooked or broken.
4Check if the projection lamp has been securely installed. Please
refer to the “Replacing the lamp” section.
4Make sure you have removed the lens cap and the projector is
switched on.
4Ensure that the “Hide” feature is not enabled.
Problem: Partial, scrolling or incorrectly displayed image.
4Press the “Re-Sync” button on the Remote Control or Control
Panel.
4If you use a PC:
If the resolution of your computer is higher than 1024 x 768.
Follow the steps outlined below to reset the resolution.
For Windows 3.x:
1.In the Windows Program Manager, click the “Windows Setup”
icon in the Main group.
2.Verify that your display resolution setting is less than or equal
to 1024 x 768.
For Windows 95,98,2000,XP:
1.Open “My Computer” icon, the “Control Panel” folder, and
then double click on the “Display” icon.
2.Select the “Setting” tab.
3.In the “Desktop Area” you will find the resolution setting.
Verify that the resolution setting is less than or equal to 1024 x
768  resolution.
If the projector is still not projecting the whole image, you will
also need to change the monitor display you are using. Refer to
the following steps.
Troubleshooting
If you experience trouble with the projector, refer to
the following information.  If the problem persists, please
contact your local reseller or service center. 
						

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4.Follow the above steps 1-2. Click on the “Advanced Properties”
button.
5.Select the “Change” button under the “Monitor” tab.
6.Click on “Show all devices”. Then select “Standard monitor
types” under the “Manufacturers” box; choose the resolution
mode you need under the “Models” box.
7.Verify that the resolution setting of the monitor display is less
than or equal to 1024 x 768.
4If you are using a Notebook PC:
1.You are required to implement the above steps of resolution
setting of the computer first.
2.Switch the Notebook PC display to the “external display only”
or “CRT only” mode.
4If you experience difficulty in changing resolutions or your
monitor freezes, restart all the equipment and the projector.
Problem: The screen of the Notebook or PowerBook computer
is not displaying your presentation.
4If you are using a Notebook PC:
Some Notebook PCs may deactivate their screens when a second
display device is in use.  Refer to your computer’s documentation
for information on how to reactivate the monitor display.
4If you are using an Apple PowerBook:
In Control Panels, open the PowerBook Display to select Video
Mirroring “On”.
Problem: Image is unstable or flickering
4Use “Phase” to correct it.  Refer to page 24.
4Change the monitor color setting from your computer.
Problem: Image has vertical flickering bar
4Use “Frequency” to make an adjustment.  Refer to page 24.
4Check and reconfigure the display mode of your graphic card to
make it compatible with the product.
Problem: Image is out of focus
4Adjusts the Focus Ring on the projector lens.  Refer to page 14.
4Make sure the projection screen is between the required distance
4.9 to 32.8 feet (1.5 to 10.0 meters) from the projector.
Appendices