Canon Multimedia Projector LV-8235 UST - Manual (Page 71)

71
Maintenance and Cleaning
Appendix
Troubleshooting
Before calling your dealer or service center for assistance, check the items below once again.
– Make sure you have properly connected the projector to peripheral equipment as described on pages 18-20.
– Make sure all equipment is connected to AC outlet and the power is turned on.
– When the projector does not project an image from the connected computer, restart the computer.
Problem Solutions Pages
Power
No power  Plug the power cord of the projector into the AC outlet.
 See if the POWER indicator lights red.
 Wait until the POWER indicator stops blinking to turn on the
projector again. The projector can be turned on after the
POWER indicator turns red.
22
 Check the WARNING TEMP. indicator. If the WARNING TEMP.
indicator lights red, projector can not be turned on.
66
 Check the projection lamp. 69
 Unlock the Key lock function for the projector. 61
PIN code dialog box appears at
start-up.
 PIN code lock is being set. Enter a PIN code (the “1234” or
numbers you have set.)
23,
61-62
Opening display
The initial display is not shown.  Make sure Off or Countdown off are not chosen at display
function.
55
The initial display is not same
as the default set.
 Make sure User or Off are not chosen at Logo (select)
function.
55
Input signal switches automati-
cally. (or does not switch auto-
matically)
 Make sure Auto input function is adjusted properly. 53
An icon other than Input mode
or Lamp mode icon appears
 That is the Filter warning icon or the Lamp replacement icon. 65, 69
Image
No image  Check the connection between your computer or video
equipment and the projector.
18-20
 See if the input signal is correctly output from your computer.
Some laptop computers may need to change the setting for
monitor output when connecting to a projector. See your
computer’s instruction manual for the setting.
 It takes about 30 seconds to display an image after turning on
the projector.
22
 Check the Input signal, color system, video system or
computer system mode.
 Make sure the temperature is not out of the specified
Operating Temperature (41˚F–104˚F [5˚C–40˚C]).
 When Blank is operating, the image can not be displayed.
Press the BLANK button or any other button on the remote
controller.
Image is Left/Right reversed.  Check the Ceiling/Rear function. 42, 49
Image is Top/Bottom reversed.  Check the Ceiling function. 42, 49