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Troubleshooting
Symptom
Power does not turn on.
(Power indicator does not turn on.)
The screen is dark.
The image does not display.
There is a blank area when set to Quad
Input/Dual Input.
Screen is too bright/dark.
Burn-in image appears.
There is an unlit or red, blue, green, or
white dot on screen.
There is an interference pattern or trace
that remains when the LCD panel is
pressed.
OSD menu cannot be used.
The F button on the main unit is flashing.
• Press the button.
• Check that the AC power cord is connected correctly.
• Brightness of the power indicator may be turned off. Turn it on and
check once more.
When the power indicator does not turn on:
• Press the button.
• Check that the AC power cord is connected correctly.
When the power indicator is lit orange:
• Press the button.
When the power indicator is flashing orange:
• Flashing once every 3 seconds : Contact Canon Customer Center.
• Flashing twice every 3 seconds :
- Turn on the power with the button.
- The temperature of the display rises (or falls) depend on operation
environment. Check the environmental conditions (
in direct sunlight.
- If the power still does not turn on, contact Canon Customer Center.
• Set each item in "Channel Settings" according to input signal.
• There may be no input signal. Look at the display area icon in the
interface area and check that the input area and signal cables are
properly connected.
• Signals with different resolution or frequency may be input from each
terminal. Check the signal.
• Adjust the "Contrast" on the OSD menu.
• There is a limit on the service life of LCD backlight. If the screen
becomes dark or starts flickering, contact Canon Customer Center.
• This is a characteristic of the LCD panel and you should avoid displaying
stationary image for a long time.
• LCD display is made of very high precision technology. It has effective
pixels of 99.99% or more, but there may be black dots or red, blue, or
green dots that may be always on. This is not a failure.
• The symptom may be resolved by displaying a white or black image on
the entire screen.
• Check that "Protect Settings" is not set.
• When "Peak Luminance Control" is set to "On", the F button assigned
with this function flashes when display luminance is restricted.
• When "Peak Luminance Control" is assigned to two or more F buttons,
one of the buttons flashes.
Cause and Action
12
21
70
12
21
12
12
75
75) and do not use
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19
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39
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Troubleshooting
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