Canon SX20 - Manual (Page 82)

82
TROUBLESHOOTING
Cannot project image from notebook computer
Power turns off
Cause Countermeasure
The connection cable is not connected
properly. Check whether the connection cable is properly connected
to the video terminal of the computer. (P23)
The video signal type is incorrect. Check whether the selected signal type is correct. (P28,
84)
The external monitor output setting on
the notebook computer is incorrect. Turn on the external monitor output on the notebook com-
puter.
To turn on the external monitor output, press the [LCD] or
[VGA] function key while pressing the [Fn] key on the key-
board of the notebook computer. (P24)
The combination of keys used to perform this operation
varies among computer manufacturers. Refer to the
User's Manual that came with your computer.
The displayed image is not the same
as that displayed on the notebook
computer. Check whether the dual screen (multi-display) mode is
selected on the notebook computer.
When the dual screen mode is selected, change it to the
simultaneous display mode (output setting) on the note-
book personal computer.
The output setting method varies among computer manu-
facturers. Refer to the User's Manual that came with your
computer.
Cause Countermeasure
The air intake or exhaust vent is
blocked. Check whether the air intake or exhaust vent is blocked.
If the air intake or exhaust vent is blocked, the temperature
inside the projector rises and the power is automatically
turned off to protect the main body of the projector. Wait
until the internal temperature lowers, and turn on the pro-
jector with the intake and exhaust vents unblocked. (P21,
76)
The fir filter is dirty. Check whether the bottom air filter is clogged with dust.
If the air filter is clogged, clean or replace the air filter.
(P76)
The lamp has burnt out (or it is defec-
tive). Check whether the lamp has burnt out.
If the lamp has burnt out, replace it.
The lamp may be defective if it has not burnt out. Check
the lamp by replacing it with a spare lamp if you have it.
(P12, 77)
The operating temperature is
improper.
Check whether the operating temperature is 5 to 35
o
C.
(P13)
Others The projector may be out of order. Contact Canon dealer
immediately. (Back cover)