Canon Projector SX800 Manual

141Troubleshooting
Appendix
■The projected image is blur.
■You cannot project an image appropriately.
■The projector is forced to be turned off.
Cause Countermeasure
The image is out of focus. Adjust the focus. (P59)
The distance to the screen is too 
short.Check whether the distance to the screen is appropriate. If 
the distance is shorter than approximately 1.2m (3.9), the 
projector cannot focus on the screen. (P35, P151)
The projector is not placed straight 
in front of the screen.Check whether the...

Troubleshooting
142
■You cannot operate the remote control.
The operating temperature is inap-
propriate.Check whether the operating temperature is 5 to 35°C. (P20)
If you use the projector at 2300 meters or higher above sea 
level, contact your dealer.
Other reasons The projector may be damaged. Contact your dealer.
Cause Countermeasure
Batteries are not installed properly 
or they have run out.Check whether batteries are installed correctly. If batteries 
are installed correctly, replace them with new...

143
Appendix
Maintenance
Cleaning the Projector
Clean the projector frequently to prevent dust from settling on the surface.
A dirty lens may ruin the quality of the projected image.
Wipe the projectors main unit softly with a soft cloth.
If the projector is heavily soiled, soak the cloth in water with a small amount of detergent 
in it, squeeze the cloth very well, and then wipe the projector with it. After cleaning, wipe 
the projector with a dry cloth.
 The main unit is very hot immediately after...

Maintenance
144
Cleaning and Replacing the Air Filter
An air filter is installed in the air intake vent on the bottom of the main body to protect the 
internal lens and mirror from dust. Should the air filter become clogged with dust, the pro-
jector may be damaged since it will block the air flow into the projector and raises the 
internal temperature of the projector. The following screen is displayed when turning on 
the projector if the air filter needs to be cleaned. Clean the air filter if such is...

145Maintenance
Appendix
Replacing the Lamp
When the time of use of the lamp exceeds the certain amount of time, the following mes-
sage (two types) is displayed for 10 seconds every time the projector is turned on.
1,800 - less than 2,000 hours
 After this screen has been displayed for 10 seconds and disappeared, all buttons 
become operable.
 This message will not be displayed again if you select [Cancel] in response to the mes-
sage Do you want to display this message again?.
Over 2,000 hours
 After...

Maintenance
146
■Replacing the Lamp
1Turn off the projector, disconnect the 
power plug from the AC outlet, and let 
the projector stand for at least 1 hour.
2As shown in the figure, insert a flat-
head screwdriver in the gap and 
remove the lamp cover by raising it.
3Loosen two screws with a phillips-
head screwdriver and then pull up the 
handle.
* Pull up the handle as shown in the 
figure.
4Remove the lamp while holding the 
center of the handle.
5Fully insert a new lamp and secure it 
with two...

147
Appendix
Relationship between Aspect and Screen Aspect
This section describes the relationship between screen aspect (P62) and aspect (P65).
To project an image on the whole screen, select the most appropriate screen aspect ratio 
and aspect according to the aspect ratio of the screen and input signal type.
When Projecting an Image from a Computer
When the input signal is [ANALOG PC-1], [ANALOG PC-2], or [DIGITAL PC (SX80 II)], select 
screen aspect and aspect as follows according to the resolution...

Relationship between Aspect and Screen Aspect
148
When Projecting an Image from Image Software
To project an image such as an image shot by a TV set, commercially available DVD software, 
or video camcorder (input signal [HDMI (SX80 II)], [VIDEO], [S-VIDEO (SX80 II)], [COMPO-
NENT]), select an aspect ratio according to the image software format as follows.
*1[Auto] cannot be selected for the aspect setting if the input signal type is [VIDEO].*2If an image from image software with aspect ratio of 16:9 is...

149 Relationship between Aspect and Screen Aspect
Appendix
When Projecting an Image from a Digital Camera or a USB 
Flash Memory (SX80 II)
The [Auto] mode is automatically selected for the aspect ratio when displaying an image 
from a digital camera or USB flash memory (selecting [USB] as the input signal).
The image is expanded fully on the screen with the screen aspect maintained.
*To perform keystone adjustment (P60), select [16:9] for [Screen aspect].
ScreenScreen Aspect Ratio 
SettingProjection...

150
Supported Computer Signal Types
This projector supports following signal types.
If your computer or AV equipment is compatible with any one of these signal types, the projectors 
auto PC function selects the input signal type to project an image appropriately.
ANALOG RGB
* The specifications in the table above are subject to 
change without notice.
* This projector does not support any computer sig-
nal of which dot clock is 170 MHz or higher.
DVI (SX80 II)
HDMI (SX80 II)
*Interlaced signal...