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Troubleshooting
Symptom
Power does not turn on.
(Power indicator does not turn on.)
The screen is dark.
The power was turned off when there
were not any signals.
The power suddenly goes off when a DC
power supply is used.
The image does not display.
There is a blank area when set to Quad
Input/Dual Input.
Screen is too bright/dark.
Cause and Action
• Press the button.
• Check that the 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 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 and do not use in
direct sunlight.
- If the power still does not turn on, contact Canon Customer Center.
When [Power Save] is set to other than [Off], the video display's power is
automatically turned off if the no video signal is input for a certain period of
time. Turn on the power again.
• Depending on the model of DC power supply used, the output voltage
may decrease suddenly and even turn off (0 V output) when a threshold
value is reached. Before that, a warning message about low input
voltage may be displayed only briefly or not at all. Connect a charged
DC power supply or AC power supply.
• Set each item in [Channel Settings] according to input signal.
• There may be no input signal. Check the signal.
• Some combinations are not supported. Check the signal.
• Adjust the [Luminance] 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.
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