Canon DP-V2420 User Manual - Page 97

Troubleshooting

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Troubleshooting Symptom Cause and Action Power does not turn on. • Press the button. 12 (Power indicator does not turn on.) • Check that the AC power cord is connected correctly. 21 • Brightness of the power indicator may be turned off. Turn it on and 70 check once more. The screen is dark. When the power indicator does not turn on: 12 • Press the button. 21 • Check that the AC power cord is connected correctly. When the power indicator is lit orange: 12 • Press the button. When the power indicator is flashing orange: 12 • 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 75 environment. Check the environmental conditions ( 75) and do not use in direct sunlight. - If the power still does not turn on, contact Canon Customer Center. The image does not display. • Set each item in "Channel Settings" according to input signal. 49 There is a blank area when set to Quad • There may be no input signal. Look at the display area icon in the 19 Input/Dual Input. 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 74 terminal. Check the signal. Screen is too bright/dark. • Adjust the "Contrast" on the OSD menu. 39 • There is a limit on the service life of LCD backlight. If the screen becomes dark or starts flickering, contact Canon Customer Center. Burn-in image appears. • This is a characteristic of the LCD panel and you should avoid displaying stationary image for a long time. - There is an unlit or red, blue, green, or • LCD display is made of very high precision technology. It has effective white dot on screen. 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. There is an interference pattern or trace • The symptom may be resolved by displaying a white or black image on that remains when the LCD panel is the entire screen. - pressed. OSD menu cannot be used. • Check that "Protect Settings" is not set. 70 The F button on the main unit is flashing. • When "Peak Luminance Control" is set to "On", the F button assigned 45 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. Troubleshooting 97

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97
Troubleshooting
Troubleshooting
Symptom
Cause and Action
Power does not turn on.
(Power indicator does not turn on.)
• 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.
12
21
70
The screen is dark.
When the power indicator does not turn on:
• Press the
button.
• Check that the AC power cord is connected correctly.
12
21
When the power indicator is lit orange:
• Press the
button.
12
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 (
75) and do not use
in direct sunlight.
- If the power still does not turn on, contact Canon Customer Center.
12
75
The image does not display.
• Set each item in "Channel Settings" according to input signal.
49
There is a blank area when set to Quad
Input/Dual Input.
• 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.
19
74
Screen is too bright/dark.
• 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.
39
Burn-in image appears.
• This is a characteristic of the LCD panel and you should avoid displaying
stationary image for a long time.
—
There is an unlit or red, blue, green, or
white dot on screen.
• 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.
—
There is an interference pattern or trace
that remains when the LCD panel is
pressed.
• The symptom may be resolved by displaying a white or black image on
the entire screen.
—
OSD menu cannot be used.
• Check that "Protect Settings" is not set.
70
The F button on the main unit is flashing.
• 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.
45