Canon SX20 User Manual page 81

No sound
Cause
The audio cable is not connected
properly.
The [MUTE] function is selected.
The volume level is adjusted to the
minimum.
An audio cable with a built-in resistor
is used.
Out of focus
Cause
The image is out of focus.
The lens cap is not removed.
The distance to the screen is too
short.
The projector is not placed straight in
front of the screen.
The projector has been moved to a
place where the difference in tempera-
ture is large.
Top/bottom or left/right reversed
Cause
An image is projected with its top and
bottom or left and right reversed.
Countermeasure
Check whether the audio cable is connected properly.
(P24, 43)
Press the [MUTE] button on the remote control. (P40)
Adjust the [VOL+] button on the remote control or top con-
trol to adjust the volume level. (P40)
Use an audio cable without a built-in resistor.
Countermeasure
Adjust the focus. (P30)
Remove the lens cap. (P92)
Check whether the distance to the screen is proper.
If the distance is shorter than about 3.9' (1.2 m), the image
cannot be brought to a focus. (P20, 85)
Check whether an image is obliquely projected to the
screen. A slight error in the projection angle can be cor-
rected through keystone adjustment. (P21, 31)
When the projector is moved from a low-temperature
place to a high-temperature place, dews may form on the
lens. Dews will evaporate a while later and the projector
will be able to project a normal image.
Countermeasure
The ceiling mounted/rear projection setting is incorrect.
Check the "Image flip H/V" setting in the Display settings
menu. (P61)
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