SymptomCheck these items
Trouble symptoms and remedies
Picture is ghostingY Eliminate the use of video cable extensions and/or video switch boxes.
If the problem is caused by the connected computer or other equipment, please refer to the connected equipmentOs instruction manual.Y Check that all plugs are Ţrmly seated in their sockets.
Use the self-diagnosis function (page 22) if the following recommendations do not resolve the problem.
Picture is not centered or sizYed Set the AUTO ( ) function to OK (on) in the SIZE/CENTER menu (page 13).
properlyY Adjust the size or centering (page 12). Note that with some input signals and/or graphics
SymptomCheck these itemsboards the periphery of the screen is not fully utilized.
No pictureEdges of the image are curvedY Adjust the geometry (page 13).
If the ! (power) indicator is not litY Check that the power cord is properly connected.Wavy or elliptical pattern (moire) Y Adjust the degree of moire cancellation until the moire is minimal (page 14).
Y Check that the ! (power) switch is in the Oon� position.is visible
xProblems caused by the connected computer or other equipment
If the NO SIGNAL message appears Y Check that the video signal cable is properly connected and all plugs are Ţrmly seated in Y Change your desktop pattern.
on the screen, or if the their sockets (page 6).
! (power) indicator is orangeY Check that the INPUT switch setting is correct (page 9).Color is not uniformY Degauss the monitor* (page 14). If you place equipment that generates a magnetic Ţeld,
such as a speaker, near the monitor, or if you change the direction the monitor faces, color
Y Check that the video input connectorOs pins are not bent or pushed in.
may lose uniformity.
xProblems caused by the connected computer or other equipmentY Adjust the landing (page 14) (CPD-G520 only).
Y The computer is in power saving mode. Try pressing any key on the keyboard or moving
the mouse.White does not look whiteY Adjust the color temperature (page 15).
Y Check that the 5 BNC connectors are connected in the correct order (page 6).
Y Check that the computerOs power is Oon.�
Y Check that the graphic board is completely seated in the proper bus slot.Letters and lines show red or bY Adjust the conlue vergence (page 14).
shadows at the edges
If the OUT OF SCAN RANGE xProblems caused by the connected computer or other equipment
message appears on the screenY Check that the video frequency range is within that speciŢed for the monitor. If you Monitor buttons do not operateY If the control lock is set to ON, set it to OFF (page 17).
replaced an old monitor with this monitor, reconnect the old monitor and adjust the ( appears on the screen)
frequency range to the following.IMAGE RESTORATION function Y Before using this function, the monitor must be in normal operation mode (green power
Horizontal: 30 � 130 kHz (CPD-G520), 30 � 110 kHz (CPD-G420)does not operateindicator on) for at least 30 minutes. For more information on using the IMAGE
Vertical: 48 � 170 HzRESTORATION function, see page 17.
If no message is displayed and the Y Use the Self-diagnosis function (page 22).COLORY Adjust the computerOs power saving settings to keep the monitor in normal operation US
1-9mode for more than 30 minutes.
! (power) indicator is green or
I MAGE
�ashing orangeRESTORAT I ONY The monitor may gradually lose its ability to perform this function due to the natural aging
If using a Macintosh systemY When connecting to a Power Mac G3/G4 that has 3 rows of pins, check that the supplied AVA ILABLEof the picture tube.AFTER
exclusive Power Mac G3/G4 adapter and the video signal cable are properly connected WARM UP
(page 6).EXIT:MENU
Y If you connect to the other version of Macintosh series computer that has 2 rows of pins,
you will need a different adapter (not supplied).USB peripherals do not functionY Check that the appropriate USB connectors are securely connected (page 8).
Picture �ickers, bounces, Y Isolate and eliminate any potential sources of electric or magnetic Ţelds such as other Y Check that the ! (power) switch is in the Oon� position. Then reconnect the USB cable to
oscillates, or is scrambledmonitors, laser printers, �uorescent lighting, televisions, or electric fans.the monitor.
Y Move the monitor away from power lines or place a magnetic shield near the monitor.xProblems caused by the connected computer or other equipment
Y Try plugging the monitor into a different AC outlet, preferably on a different circuit.Y Check that the power of any self-powered USB compliant peripheral deOon.�vices is
Y Try turning the monitor 90° to the left or right.Y Install the latest version of the device driver on your computerOs . Contact your device
xProblems caused by the connected computer or other equipmentmanufacturer for information about the appropriate device driver.
Y Check your graphics board manual for the proper monitor setting.Y If your USB compliant keyboard or mouse does not function, connect them directly to
Y ConŢrm that the graphics mode (VESA, Macintosh 21" Color, etc.) and the frequency of your computer, reboot your computer, and make any necessary adjustments to the USB
the input signal are supported by this monitor (Appendix). Even if the frequency is within settings. Then reconnect the keyboard or mouse to the monitor. If you connect a keyboard
the proper range, some graphics boards may have a sync pulse that is too narrow for the or mouse to the USB connectors and then boot your computer for the Ţrst time, the
monitor to sync correctly.peripheral devices may not function.
Y Adjust the computerOs refresh rate (vertical frequency) to obtain the best possible picture.A hum is heard right after the Y This is the sound of the auto-degauss cycle. When the power is turned on, the monitor is
Picture is fuzzyY Adjust the contrast and brightness (page 12).power is turned onautomatically degaussed for a few seconds.
Y Degauss the monitor* (page 14).
* If a second degauss cycle is needed, allow a minimum interval of 20 minutes for the best result. A humming noise may be heard, but this is not a
Y Adjust the degree of moire cancellation until the moire is minimal, or set CANCEL malfunction.
MOIRE to OFF (page 14).
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ACEC
