Canon projector LV7255 User Manual

							22
3. Projecting an Image (Basic Operation)
 Selecting a Source
Selecting the computer or video source
POWER
AUTO PC
INPUT
VOL-
POWER
BACK
INPUT
IMAGE
ASPECT
INFO.
MENUNO SHOW
AUTO PC
NOTE: Turn on the computer or VCR connected to the projector.
Selecting from INPUT List
Press and quickly release the INPUT button on the projector cabinet to
display the Source list. Each time the INPUT button is pressed, the input
source will change as follows: Computer 1, Computer 2, Video (VCR
or laser disc player), S-Video, To display the selected source, allow 1
second to elapse.
Detecting the Signal Automatically
Press and hold the INPUT button for a minimum of 2 seconds, the pro-
jector will search for the next available input source. Each time you press
and hold the INPUT button for a minimum of 2 seconds, the input source
will change as follows:
Computer1  → Computer2  → Video  → S-Video  → Computer1  → ...
TIP:  If no input signal is present, the input will be skipped. When the input\
source you wish to project is displayed, release the INPUT button. 
						

							23
3. Projecting an Image (Basic Operation)
Place your projector on a flat level surface and ensure that the projector is
square to the screen.
Lift the front edge of the projector to center the image vertically.
*If the projected image does not appear square to the screen then use the\
Keystone feature for proper adjustment. See page 
25  to  26 .
 Adjusting the Picture Size and Position
2
1
4
3
Adjustable Tilt Foot
Move the projector left to center the image horizontally on the screen.
Adjustable Tilt
F oot Lever
Adjust the Tilt Foot
1. Lift the front edge of the projector.
CAUTION:
Do not try to touch the ventilation outlet during Tilt Foot adjustment as it
can become heated while the projector is turned on and during its cool
down period after it is turned off.
2. Push and hold the adjustable tilt foot lock button on the front of the
projector to extend the adjustable tilt foot.
3. Lower the front of the projector to the desired height.
4. Release the adjustable tilt foot lock button to lock the adjustable tilt foot.
There is approximately 10 degrees (up) of adjustment for the front of the
projector.
Adjusting the height of a projected image or changing projection angle w\
ill
r un the Auto Keystone correction function to quickly correct the vertical
distortion. The Keystone screen will be displayed.
F or operating the Keystone screen, see  Correcting Keystone Distortion
on page 
25 .
5. The rear foot height can be adjusted up to 10 mm/0.4 inch.
Rotate the rear foot to the desired height in order to square the image on
the projection surface, but the vertical distance from the bottom to the desk
or floor should be 10 mm/0.4 inch to make the projector horizontal on the
flat surface.
NOTE: If you rotate the rear foot too much, it will come off from the bo\
ttom.
CAUTION:
Do not use the tilt-foot for purposes other than originally intended.
Misuses such as using the tilt foot to carry or hang (from the wall or
ceiling) the projector can cause damage to the projector.
Rear FootUp Down
NOTE: To fine-adjust the height of the rear foot, remove the factory attached spacer
and rotate the rear foot to the desired height. Do not throw away or lose the spacer.
Attach the spacer to the rear foot again after using the projector. 
						

							24
3. Projecting an Image (Basic Operation)
Focus
Use the FOCUS ring to obtain the best fo-
cus.
Zoom
Use the ZOOM lever to finely adjust the image
size on the screen. 
						

							25
 Correcting Keystone Distortion
Auto Keystone Correction
The Auto keystone correction feature will correct the vertical distortion of a projected image on the screen. No special
operation required. Just put the projector on a flat surface.
NOTE: Although the Auto Keystone angle that can be corrected is about 30\
 degrees upward and downward, we recommend that
you use the Auto Keystone within an angle of +/- 10 degrees.
3. Projecting an Image (Basic Operation)
NOTE: Auto and Manual keystone correction angle could be less than 30 de\
grees depending on some kinds of signal and aspect
ratios.
NOTE: The Auto keystone correction feature can cause an image to be slig\
htly blurred because the correction is made electroni-
cally.
Manual Keystone Correction
You can also correct the vertical keystone distor-
tion manually.
To   do so:
1. Press the MENU button.
The menu will be displayed.
2. Turn off the Auto keystone function. Use the SELECT 
 button to select
“Display settings” and then press OK or
the SELECT 
 button. The “Auto key-
stone” will be displayed.  Press the SELECT 
 to select “Off”.
3. Select the Keystone function. Use the SELECT 
 button to select
“Keystone adjustment”.
4. Correct the vertical distortion. Use the SELECT 
 or  button to correct
the vertical keystone distortion.
NOTE: The Keystone correction feature can cause
an image to be slightly blurred because the
correction is made electronically. 
						

							26
3. Projecting an Image (Basic Operation)
5. Press the MENU button to close the menu.
NOTE: You can save the changes using the Keystone save
feature when you turn off the projector. See page 41 . 
						

							27
3. Projecting an Image (Basic Operation)
 Automatically Optimizing on RGB Image
Adjusting the Image Using Auto PC adjustment
Optimizing an RGB image automatically.
Press the AUTO PC button to optimize an RGB image automatically.
[Poor picture]
[Normal picture]
POWER
AUTO PC
INPUT
VOL-
POWER
BACK
INPUT
IMAGE
ASPECT
INFO.
MENUNO SHOW
AUTO PC
Press the AUTO PC button to fine-tune the computer image or to remove any vertical banding that might appear and
to reduce video noise, dot interference or cross talk (this is evident when part of your image appears to be shimmer-
ing). This function adjusts the clock frequencies that eliminate the horizontal banding in the image. This function also
adjusts the clock phase to reduce video noise, dot interference or cross talk. (This is evident when part of your image
appears to be shimmering.)
This adjustment may be necessary when you connect your computer for the first time.
NOTE: Some signals may not be displayed correctly or take time.• The Auto PC adjustment function does not work for component, composite a\
nd S-video signals.
• If the Auto PC adjustment operation cannot optimize the RGB signal, try to adjust Horizontal/Vertical Position Clock and
Tracking manually. See pages  45  and  46 .
 Turning Up or Down Volume
Sound level from the speaker and the AUDIO OUT jack (Stereo mini) on the projector can be adjusted.
Increase volume
Decrease volumeR -
CLICKL -
CLICK
FREEZE
D.ZOOMP AGEVOL
TIP:  When no menus appear, the SELECT  and  buttons on the projector cabinet work as a volume control.
MENU
BACK
AUTO PC
INPUT
VOL-VOL+
Decrease volume Increase volume 
						

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 Turning off the Projector
To  turn off the projector:
3. Projecting an Image (Basic Operation)
WARNINGPOWER
AUTO PC
INPUT
LAMP
POWER
BACK
INPUT
IMAGE
ASPECT
INFO.
MENUNO SHOW
AUTO PC
1. Press the POWER button on the projector cabinet or the remote control. The “Power Off / OK?” message
will appear.
CAUTION
Do not unplug the power cord from the wall outlet or do not turn off
the main power under any one of the following circumstances. Doing
so can cause damage to the projector:
• While the Hour Glass icon appears.
• While the cooling fans are running. (The cooling fans continue to
wo rk for 30 seconds after the projector is turned off)
• While the lamp is lighted.
\b  After Use
Preparation: Make sure that the projector is turned off.
1. Unplug the power cord.
2. Disconnect any other cables.3. Retract adjustable tilt feet if extended.
NOTE: If the spacer is removed from the rear foot before use, attach it \
again.4. Cover the lens with the lens cap.
5. Put the projector and its accessories in the supplied soft case.
2. Press the OK button or press the POWER button
again.
The POWER indicator will glow orange. After the projector turns off, the cooling fans keep operating
f or 30 seconds (Cooling-off time).
Immediately after turning on the projector and displaying an image, you cannot turn off the projectorf or 60 seconds.
3. Turn off the Main Power switch. The power indicator will go out.
WARNING
LAMP L AMP L AMP
POWERW ARNINGWARNINGPOWERPOWER
Po wer On Fan running Standby
Steady green light Blinking
orange light Steady orange
light 
						

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4. Convenient Features

 Turning off the Image and Sound
Press the NO SHOW button to turn off the image and sound for a short
period of time. Press again to restore the image and sound.POWER
BACK
INPUT
IMAGE
ASPECT
INFO.
MENUNO SHOW
AUTO PC
  Freezing a Picture
Press the FREEZE button to freeze a projected moving picture such as
DV D. Press again to resume motion.
  Enlarging and Moving a Picture
R-
CLICKL -
CLICK
VOL
FREEZE P
AGE
D.ZOOM
Y ou can enlarge the picture up to 400 percent.
To   do so:
1. Press the D. ZOOM (+) button to magnify the picture.
To move the magnified image, use the SELECT 
 button.
2. Return the image to the original size.
VOLD.ZOOMPAGE
FREEZE
POWER
BACK
INPUT
IMAGE
ASPECT
INFO.
MENUNO SHOW
AUTO PC
R -
CLICKL -
CLICK
VOL
FREEZE P
AGE
D.ZOOM 
						

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4. Convenient Features
 Using the Remote Mouse Receiver
The remote mouse receiver enables you to operate your computer’s mouse functions from the remote control. It is a
great convenience for clicking through your computer-generated presentations.
Connecting the remote mouse receiver to your computer
If you wish to use the remote mouse function, connect the mouse receiver and computer.
The mouse receiver can be connected directly to the computer’s USB port (type A).
NOTE: Depending on the type of connection or OS installed on your comput\
er, you may have to restart your computer or change
your computer settings.
30 °
30
°
Remote mouse receiver Computer
To USB port of PC or Macintosh
When operating a computer via the remote mouse receiver
Remote sensor on the
remote mouse receiver
7m/22 feet
When connecting using the USB terminal
F
or PC, the mouse receiver can only be used with a Windows 98/Me/XP*, Windows 2000 or Mac OS X 10.0.0 or later
operating system.
* NOTE: In SP1 or older version of Windows XP, if the mouse cursor will not move correctly, do the following:
Clear the Enhance pointer precision check box underneath the mouse speed\
 slider in the Mouse Properties dialog box [Pointer
Options tab].
NOTE: Wait at least 5 seconds after disconnecting the mouse receiver before reconnecting it and vice versa. The computer may
not identify the mouse receiver if it is repeatedly connected and disconnected in rapid intervals. 
						

							31
Operating your computer’s mouse from the remote control
You can operate your computers mouse from the remote control.
PA GE  
/  Button: scrolls the viewing area of the window or to move to the previous or next slide in PowerPoint
on your computer.
 / Mouse Buttons:moves the mouse cursor on your computer.
MOUSE L-CLICK Button: works as the mouse left button.
MOUSE R-CLICK Button: works as the mouse right button.
About Drag Mode
By pressing the L-CLICK or R-CLICK button for 2 or 3 seconds then releasing, the drag mode is set and the drag
operation can be performed simply by pressing the SELECT 
  b utton. To drop the item, press the L-CLICK (or
R-CLICK) button. To cancel it, press the R-CLICK (or L-CLICK) button.
NOTE: When you operate the computer using the SELECT  or  button with the menu displayed, both the menu and the
mouse pointer will be affected. Close the menu and perform the mouse operation.
TIP:  You can change the Pointer speed on the Mouse Properties dialog box on the Windows. For more information, see the user
documentation or online help supplied with your computer.
4. Convenient Features