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* 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
malfunction.
Displaying this monitor’s name, serial number,
and date of manufacture.
While the monitor is receiving a video signal, press and hold the
center of the control button for more than five seconds to display
this monitor’s information box.
If the problem persists, call your authorized Sony dealer and give
the following information.
• Model name: CPD-G400P
• Serial number
• Name and specifications of your computer and graphics board.
Picture is ghosting
• Eliminate the use of video cable extensions and/or video switch boxes.
• Check that all plugs are firmly seated in their sockets.
Picture is not centered or sized
properly
• Perform the (AUTO) function (page 11).
• Adjust the size (page 11) or centering (page 11). Note that some video modes do not fill
the screen to the edges.
Edges of the image are curved
• Adjust the geometry (page 12).
Wavy or elliptical pattern (moire)
is visible
• Select MOIRE ADJUST and adjust the moire cancellation effect (page 13).
x
Problems caused by the connected computer or other equipment
• Change your desktop pattern.
Color is not uniform
• Degauss the monitor* (page 13). If you place equipment that generates a magnetic field,
such as a speaker, near the monitor, or if you change the direction the monitor faces, color
may lose uniformity.
White does not look white
• Adjust the color temperature (page 12).
Letters and lines show red or blue
shadows at the edges
• Adjust the convergence (page 13).
Monitor buttons do not operate
( appears on the screen)
• If the control lock is set to ON, set it to OFF (page 14).
IMAGE RESTORATION function
does not operate
• Before using this function, the monitor must be in normal operation mode (green power
indicator on) for at least 30 minutes, see “Restoring the color” on page 14.
• Adjust the computer’s power saving settings to keep the monitor in normal operation
mode for more than 30 minutes.
• The monitor may gradually lose its ability to perform this function due to the natural aging
of the picture tube.
A hum is heard right after the
power is turned on
• This is the sound of the auto-degauss cycle. When the power is turned on, the monitor is
automatically degaussed for five seconds.
Symptom Check these items
AVAILABLE
AFTER
WARM–UP
RESTORATION
IMAGE
OPT ION
MENU
MODEL :CPD-G400P
SER NO:1234567
MANUFACTURED:200
INFORMATION
0-52
Example
b