Canon 7545 owner manual Troubleshooting

APPENDIX

TROUBLESHOOTING

Before calling your dealer or service center for assistance, check the matters below once again.

1.Make sure you have connected a projector to your computer or video equipment as described in the section "CONNECTING THE PROJECTOR" on pages 11 ~ 13.

2.Check cable connection. Verify that all computer, video and power cord are properly connected.

3.Verify that all power is switched on.

4.If a projector still does not produce an image, re-start your computer.

5.If an image still does not appear, unplug a projector from your computer and check your computer monitor's display. The problem may be with your graphics controller rather than with a projector. (When you reconnect a projector, be sure to turn the computer and monitor off before you power up the projector. Power the equipment back on in order of : Projector and computer.)

6.If the problem still exists, check following chart.

Problem:	Try these Solutions
No power.	● Plug a projector into your AC outlet.
	● Make sure READY Indicator lights.
	● Wait 90 seconds after a projector is turned OFF when turning a projector back on.
	NOTE : After pressing Power ON-OFF button to OFF, make sure a projector works as
	follows:
	1. LAMP indicator lights bright and READY indicator turns off.
	2. After 90 seconds, READY indicator lights green again and a projector may be
	turned on by pressing Power ON-OFF button.
	● Check WARNING TEMP. indicator. If this indicator flashes red, a projector cannot be
	turned on.
	(See "TURNING ON/OFF PROJECTOR" section on page 19.)
	● Check Projection Lamp. (Refer to page 39.)
Image is out of	● Adjust focus of a projector.
focus.	● Make sure a projection screen is at least 4.6’ (1.4m) from the projector.
	● Check Projection Lens to see if it needs cleaning.
	NOTE : Moving a projector from a cool temperature location to a warm temperature location
	may result in moisture condensation on Projection Lens. In such an event, leave a
	projector OFF and wait until condensation disappears.
Picture is Left/Right	● Check Ceiling / Rear feature. (See “SETTING” section on page 35.)
reversed.
Picture is	● Check Ceiling feature. (See “SETTING” section on page 35.)
Top/Bottom
reversed.
Some displays are	● Check Display feature.(See “SETTING” section on page 35.)
not seen during the
Operation.
No image.	● Check connection between your computer or video equipment and a projector.
	● Check NO SHOW function. (Refer to P21.)
	● When turning a projector on, it takes about 30 seconds to display an image.
	● Check the system that you select is corresponding with your computer or video
	equipment.
	● Make sure the temperature is not out of the Operating Temperature (5°C ~ 35°C).
No sound.	● Check audio cable connection from audio input source.
	● Adjust the audio source.
	● Press VOLUME (+) button.
	● Press MUTE button.

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