Canon projector LV7250 User Manual

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3. Projecting an Image (Basic Operation)
 Selecting a Source
Selecting the computer or video source
WER
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 (LV-7250 only),
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:
LV-7250
Computer1 → Computer2 → Video → S-Video → Computer1 → ...
LV-X6
Computer → Video → S-Video → Computer → ...
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
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.
MENU
BACKKEYSTONE
W
A
R
N
IN
GPOWERAUTO PCINPUTLAMP
VOL-V
O
L+
2
1
W
A
R
N
IN
GPOWERAUTO PCINPUTLAMP
4
3
Adjustable Tilt  Foot
Move the projector left to center the image horizontally on the screen.
Adjustable Tilt  Foot
Lock Button3. 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 will
run the Auto Keystone correction function to quickly correct the vertical
distortion. The Keystone screen will be displayed.
For 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 bottom.
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.
Up
Down 
						

							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 im-
age size on the screen. 
						

							25
3. Projecting an Image (Basic Operation)
 Correcting Keystone Distortion
Correcting Keystone Distortion
If the screen is tilted vertically, keystone distortion becomes large. Proceed with the following
steps to correct keystone distor tion
NOTE: The Keystone correction can cause an image to be slightly blurred because the correction is made electronically.
NOTE: The Keystone correction range can be made narrower, depending on a signal or its aspect ratio selection.
Adjusting with the Auto Keystone Function (LV-7250 only)
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.
TIP: Even when the menu setting for [Auto keystone] is turned on, [Keystone adjustment] can be adjusted manually.
Adjusting with buttons on the cabinet
1. Press the SELECT  or  button with no menus displayed
After the Keystone screen is displayed, press the SELECT  or  button to correct the keystone distortion.
2. Press the BACK button.
The Keystone screen will be closed. The changes will take effect.
NOTE: When the menu is displayed, the above operation is not available. When the menu is displayed, press the MENU button to
display the menu and start the Keystone correction from the menu.
From the menu, select [Setup] 
→ [General] → [Keystone adjustment]. The changes can be saved with [Keystone save]. (→page
44)
Adjusting with the Remote Control
1. Press the MENU button.
The menu will be displayed.
2. Press the SELECT  button to select [Setup] and press the OK or SELECT  button.
3. Press the SELECT 
 button to select [Keystone adjustment] from the [General] tab.
4. Press the SELECT 
 or  button.
Adjust so that the image is rectangular.
  
						

							26
3. Projecting an Image (Basic Operation)
5. Press the MENU button.
The menu will be closed.
TIP: The changes can be saved with [Keystone save]. (→ page 44)
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.
•The Auto Keystone correction will take effect in 2 seconds after changing the projection angle during projection.
•The left and right (horizontal) keystone correction is not available.
Place the projector so that the lens surface is parallel to the screen.
The rear feet of the projector can be adjusted to level the projector. 
						

							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]
AUTO PC
OWER
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 and 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 page 43.
 Turning Up or Down Volume
Increase volume
Decrease volumeR-
CLICKL-
CLICK
FREEZE
D.ZOOMPAGEVOL
Sound level from the speaker can be adjusted.
TIP: When no menus appear, the SELECT  and  buttons on the projector cabinet work as a volume control.
VOL-VOL+
MENU
BACK
KEYSTONE
Increase volume
Decrease volume 
						

							28
 Turning off the Projector
To turn off the projector:
3. Projecting an Image (Basic Operation)
WARNINGPOWER
LAMP
POWER
INPUT IMAGE
ASPECT
INFO.
MENUNO SHOW
AUTO PC1. Press the POWER button on the projector cabinet or
the remote control. The “Power Off / OK?” message
will appear.
WARNING
LAMP
POWERWARNING
LAMP
WARNING
LAMP
POWERPOWER
Power On Fan running Standby
Steady
green lightBlinking
orange lightSteady
orange light
CAUTION:
Parts of the projector will become heated during opera-
tion. Use caution when picking up the projector immedi-
ately after it has been operating.
CAUTION:
•The projector cannot be turned off for 60 seconds after
the lamp is turned on and while the POWER indicator is
blinking green. Doing so could cause premature lamp
failure.
•Do not turn off the AC power by pressing the main power
switch or by unplugging the power cord when the pro-
jector is powered on. Doing so can cause damage to
the projector.
2. Press the OK button or press the POWERbutton
again.
The POWER indicator will glow orange. After the
projector turns off, the cooling fans keep operating
for 30 seconds (Cooling-off time).
Immediately after turning on the projector and
displaying an image, you cannot turn off the projector
for 60 seconds.
3. Turn off the Main Power switch. The power indicator
will go out.
TIP: The main power of the projector can be turned off by pressing
the main power switch or by unplugging the power cord even
during the cool down period after the projector is turned off.
NOTE: Do not turn off the main power within 10 seconds of making
adjustment or setting changes and closing the menu.
Doing so can cause loss of adjustments and settings. 
						

							29
 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.
4. Cover the lens with the lens cap.
5. Put the projector and its accessories in the supplied soft case.
CAUTION:
Use caution when putting the projector in the soft case immediately after the projector has been operating.
The projector cabinet is hot.
3. Projecting an Image (Basic Operation) 
						

							30
POWER
BACK INPUT IMAGE
ASPECT
INFO.
MENUNO SHOW
AUTO PC
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
DVD. Press again to resume motion.
 Enlarging and Moving a Picture
R-
CLICKL-
CLICK
VOL
FREEZEPAGE
D.ZOOM
You can enlarge the picture up to 400 percent.
NOTE: The maximum magnification may be less than four times depending on
the signal.
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
R-
CLICKL-
CLICK
VOL
FREEZEPAGE
D.ZOOM 
						

							31
4. Convenient Features
 Using the Remote Mouse Receiver (LV-7250 only)
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 computer, you may have to restart your computer or change
your computer settings.
30°
30°
Remote mouse receiverComputer
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
For 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.
Remote Control Precautions
•Handle the remote control carefully.
•If the remote control gets wet, wipe it dry immediately.
•Avoid excessive heat and humidity.
•Do not heat, take apart, or throw batteries into fire.
•Ensure that you have the batteries polarity (+/-) aligned correctly.
•If you will not be using the remote control for a long time, remove the batteries.
•Do not place the batteries upside down.
•Do not use new and old batteries together, or use different types of batteries together.
•Dispose of used batteries according to your local regulations.