Sony CPD-220GS - Manual (Page 19)

Additional Information
Symptom Check these items
Screen image is not centered
or sized properly
• Adjust the size or centering (page 9).
• Some video modes do not fill the screen to the edges. This problem tends to occur with
certain video boards.
Edges of the image are
curved • Adjust the geometry (page 10).
White lines show red or blue
shadows at edges • Adjust the convergence (pages 12 -13).
Picture is fuzzy • Adjust the contrast and brightness (page 8).
• Degauss the monitor (page 13).
If you place equipment which generates a magneHc 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
rrunimum interval of 20 minutes for the best result.
• If red or blue shadows appear along the edges of images, adjust the convergence
(pages 12 -13).
• If the moire is cancelled, the picture may become fuzzy. Decrease the moire
cancellation effect (pages 12 -13).
Picture bounces or has wavy
oscillations • 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 «mother 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.
Picture is flickering • Set the refresh rate on the computer to obtain the best possible picture by referring to
your computer's manual.
Picture appears to be
ghosting
• Eliminate the use of video cable extensions and / or video switch boxes if this symptom
occurs. Excessive cable length or a weak cormection can produce this symptom.
Wavy or elliptical (moire)
pattern is visible
• Cancel the moire (pages 12 -13).
The moire may be modified depending on the cormected computer.
• 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.
Two fine horizontal lines
(wires) are visible
• These wires stabilize the vertically striped aperttire grille (page 17). This aperture grille
allows more light to pass through to the screen giving the Trinitron CRT more color
and brightness.
Hum is heard right after the
power is turned on
• When the power is turned on, the auto-degauss cycle is activated. While the auto­
degauss cycle is activated, a hum may be heard. The same hum is heard when the
monitor is manually degaussed. This is not a malfunction.
If the problem persists, call your authorized Sony dealer from a location near your monitor.
Note the model name and the serial number of your monitor. Also note the make and name of your video board.
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