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Sym pt om
Color is not uniform
You cannot adjust the monitor
w ith the buttons on the front
panel
White does not look w hite
Screen image is not centered or
sized properly
Edges of the image are curved
White lines show red or blue
shadow s at edges
Picture is fuzzy
Picture bounces or has w avy
oscillations
Picture is flickering
Picture appears to be ghosting
Wavy or elliptical (moire)
pattern is visible
Tw o fine horizontal lines
(w ires) are visible
Hum is heard right after the
pow er is turned on
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https://www.usersmanualguide.com/
Check t hese it em s
• Degauss the monitor (page 15).
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 (pages 13 – 14).
• If the control lock function is set to on, set it to off using the OPTION OSD (page 16).
• Adjust the color temperature (pages 12 – 13).
• Check that the 5 BNCs are connected in the correct order (from left to right: Red–Green–
Blue–HD–VD) (page 6).
• Press the ASC button (page 7).
• Adjust the size or centering (page 10).
• Some video modes do not fill the screen to the edges. This problem tends to occur with
certain video boards.
• Adjust the geometry (page 11).
• Adjust the convergence (pages 13 – 14).
• Adjust the contrast and brightness (page 9).
• Degauss the monitor (page 15).
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.
• If red or blue shadows appear along the edges of images, adjust the convergence
(pages 13 – 14).
• If the moire is cancelled, the picture may become fuzzy. Decrease the moire cancellation
effect (pages 13 – 14).
• 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 the
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.
• Cancel the moire (pages 13 – 14).
The moire may be modified depending on the connected 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.
• These wires stabilize the vertically striped aperture grille (page 19). This aperture grille
allows more light to pass through to the screen giving the Trinitron CRT more color and
brightness.
• When the power is turned on, the auto-degauss cycle is activated. While the auto-degauss
cycle is activated (3 seconds), a hum may be heard. The same hum is heard when the
monitor is manually degaussed. This is not a malfunction.
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