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Additional Information

Troubleshooting

This section may help you isolate the cause of a problem and as a result, eliminate the need to contact technical support.

Symptom

Check these items

No picture

If the

indicator is not lit

If the “NO INPUT SIGNAL”
message appears on the
screen, or if the

(power)

indicator is either orange or
alternating between green and
orange

If the “NO INPUT SIGNAL”
and “CHECK SIGNAL
CABLE” messages appear on
the screen, or if the

indicator is either orange or
alternating between green and
orange

If the “OUT OF SCAN
RANGE” message appears on
the screen

If no message is displayed
and the

indicator is green

or flashing orange

Picture is scrambled

Color is not uniform

You cannot adjust the
monitor with the buttons on
the front panel

• Check that the power cord is properly connected.
• Check that the

(power) switch is in the “on” position.

• Check that the input switch setting is correct (page 5).
• Check that the video input connector’s pins are not bent or pushed in.
• The computer is in power saving mode. Try pressing any key on the computer

keyboard or moving the mouse.

• Check that the computer’s power is “on.”
• Check that the graphic board is completely seated in the proper bus slot.

• Check that the video signal cable is properly connected and all plugs are firmly seated

in their sockets.

• Ensure that no pins are bent or pushed in the video input connector.
• Check that the input switch setting is correct (page 5).
• Check that the graphic board is completely seated in the proper bus slot.

• Check that the video frequency range is within that specified for the monitor.

(Horizontal: 30 – 121 kHz, Vertical: 48 – 160 Hz)
Refer to your computer’s instruction manual to adjust the video frequency range.

• See “Self-diagnosis Function” (page 20).

• Check your graphics board manual for the proper monitor setting.
• Check this manual and confirm that the graphics mode and the frequency you are

trying to operate at is supported. Even if the frequency is within the proper range,
some graphic boards may have a sync pulse that is too narrow for the monitor to sync
correctly.

• Degauss the monitor (page 13).

If you place equipment which generates a magnetic field, such as a loudspeaker, near
the monitor, or you change the direction of the monitor, color may lose uniformity.
The degauss function demagnetizes the metal frame of the CRT to obtain a neutral
field for uniform color reproduction. If a second degauss cycle is needed, allow a
minimum interval of 20 minutes for the best result.

• Adjust the landing (page 10).

• If the control lock function is set to ON, set it to OFF using the OPTION OSD

(page 14).

Getting Started

Additional Information

Symptom

Check these items

Screen image is not centered
or sized properly

Edges of the image are
curved

White lines show red or blue
shadows at edges

Picture is fuzzy

Picture bounces or has wavy
oscillations

Picture is flickering

Picture appears to be
ghosting

Wavy or elliptical (moire)
pattern is visible

COLOR RETURN function does
not operate

Two fine horizontal lines
(wires) are visible

Hum is heard right after the
power is turned on

• Press the

button (page 5).

• Adjust the size or centering (page 7).

Some video modes do not fill the screen to the edges. This problem tends to occur with
certain graphic boards.

• Adjust the geometry (page 8).

• Adjust the convergence (page 9).

• Adjust the contrast and brightness (page 6).
• Degauss the monitor (page 13).

• If red or blue shadows appear along the edges of images, adjust the convergence

(page 9).

• If CANCEL MOIRE is ON, the picture may become fuzzy. Decrease the moire

cancellation effect or set CANCEL MOIRE to OFF (page 10).

• Isolate and eliminate any potential sources of electric or magnetic fields. Common

causes for this symptom are electric fans, fluorescent lighting, or laser printers.

• If you have another monitor close to this monitor, increase the distance between them

to reduce the interference.

• Try plugging the monitor into a different AC outlet, preferably on a different circuit.
• Try the monitor on a different computer in a different room.

• Set the refresh rate on the computer to obtain the best possible picture by referring to

your computer’s manual.

• Eliminate the use of video cable extensions and/or video switch boxes if this symptom

occurs. Excessive cable length or a weak connection can produce this symptom.

• Set CANCEL MOIRE to ON and adjust the degree of moire cancellation until the

moire is at a minimum (page 10).

• Due to the relationship between resolution, monitor dot pitch and the pitch of some

image patterns, certain screen backgrounds sometimes show moire. Change your
desktop pattern.

• Before using this function, the monitor must be in normal operation mode (green

power indicator on) for at least 30 minutes. For more information on using the COLOR
RETURN function, see page 12.

• Adjust the computer’s power saving settings to keep the monitor in normal operation

mode for more than 30 minutes.