Read Sony CPD-G400 Service Manual online
1-7
16
Technical Features
Preset and user modes
When the monitor receives an input signal, it automatically
matches the signal to one of the factory preset modes stored in the
monitor’s memory to provide a high quality picture at the center of
the screen. (See Appendix for a list of the factory preset modes.)
For input signals that do not match one of the factory preset modes,
the digital Multiscan technology of this monitor ensures that a
clear picture appears on the screen for any timing in the monitor’s
frequency range (horizontal: 30 – 107 kHz, vertical: 48 – 120 Hz).
If the picture is adjusted, the adjustment data is stored as a user
mode and automatically recalled whenever the same input signal
is received.
matches the signal to one of the factory preset modes stored in the
monitor’s memory to provide a high quality picture at the center of
the screen. (See Appendix for a list of the factory preset modes.)
For input signals that do not match one of the factory preset modes,
the digital Multiscan technology of this monitor ensures that a
clear picture appears on the screen for any timing in the monitor’s
frequency range (horizontal: 30 – 107 kHz, vertical: 48 – 120 Hz).
If the picture is adjusted, the adjustment data is stored as a user
mode and automatically recalled whenever the same input signal
is received.
Note for Windows users
For Windows users, check your video board manual or the utility
program which comes with your graphic board and select the
highest available refresh rate to maximize monitor performance.
program which comes with your graphic board and select the
highest available refresh rate to maximize monitor performance.
Power saving function
This monitor meets the power-saving guidelines set by VESA,
E
NERGY
S
TAR, and NUTEK. If the monitor is connected to a
computer or video graphics board that is DPMS (Display Power
Management Signaling) compliant, the monitor will automatically
reduce power consumption in three stages as shown below.
Management Signaling) compliant, the monitor will automatically
reduce power consumption in three stages as shown below.
*
“Sleep” and “deep sleep” are power saving modes defined by the
Environmental Protection Agency.
Environmental Protection Agency.
** When your computer is in a power saving mode, MONITOR IS IN
POWER SAVE MODE appears on the screen if you press any button
on the monitor. After a few seconds, the monitor enters the power
saving mode again.
on the monitor. After a few seconds, the monitor enters the power
saving mode again.
Troubleshooting
Before contacting technical support, refer to this section.
If thin lines appear on your screen
(damper wires)
(damper wires)
The lines you are experiencing on your screen are normal for the
Trinitron monitor and are not a malfunction. These are shadows
from the damper wires used to stabilize the aperture grille and are
most noticeable when the screen’s background is light (usually
white). The aperture grille is the essential element that makes a
Trinitron picture tube unique by allowing more light to reach the
screen, resulting in a brighter, more detailed picture.
Trinitron monitor and are not a malfunction. These are shadows
from the damper wires used to stabilize the aperture grille and are
most noticeable when the screen’s background is light (usually
white). The aperture grille is the essential element that makes a
Trinitron picture tube unique by allowing more light to reach the
screen, resulting in a brighter, more detailed picture.
On-screen messages
If no picture appears on the screen, one of the following messages
appears on the screen. To solve the problem, see “Trouble
symptoms and remedies” on page 17.
appears on the screen. To solve the problem, see “Trouble
symptoms and remedies” on page 17.
1
The input signal condition
OUT OF SCAN RANGE
OUT OF SCAN RANGE
indicates that the input signal is not supported by the
monitor’s specifications.
monitor’s specifications.
NO INPUT SIGNAL
indicates that no signal is input.
MONITOR IS IN POWER SAVE MODE
indicates that the computer is in power saving mode. This
message is displayed only when your computer is in a power
saving mode and you press any one of the buttons on the
monitor.
message is displayed only when your computer is in a power
saving mode and you press any one of the buttons on the
monitor.
2
The selected connector
This message shows the currently selected connector
(INPUT 1 or IINPUT 2).
(INPUT 1 or IINPUT 2).
Power mode
Power consumption
1
(power)
indicator
normal
operation
operation
≤
140 W
green
1 standby
≤
15 W
green and orange
alternate
alternate
2 suspend
(sleep)*
(sleep)*
≤
15 W
green and orange
alternate
alternate
3 active off**
(deep sleep)*
(deep sleep)*
≤
3 W
orange
power off
0 W
off
Damper wires
INFORMATION
OUT OF SCAN RANGE
INPUT 1
17
US
Trouble symptoms and remedies
If the problem is caused by the connected computer or other equipment, please refer to the connected equipment’s instruction manual.
Use the self-diagnosis function (page 19) if the following recommendations do not resolve the problem.
Use the self-diagnosis function (page 19) if the following recommendations do not resolve the problem.
Symptom
Check these items
No picture
If the
1
(power) indicator is not lit
• Check that the power cord is properly connected.
• Check that the
• Check that the
1
(power) switch is in the “on” position.
If the NO INPUT SIGNAL message
appears on the screen, or if the
appears on the screen, or if the
1
(power) indicator is either orange or
alternating between green and
orange
alternating between green and
orange
• Check that the video signal cable is properly connected and all plugs are firmly seated in
their sockets (page 6).
• Check that the INPUT switch setting is correct (page 8).
• Check that the HD15 video input connector’s pins are not bent or pushed in.
• Check that the HD15 video input connector’s pins are not bent or pushed in.
x
Problems caused by the connected computer or other equipment
• Check that the computer’s power is “on.”
• Check that the graphic board is completely seated in the proper bus slot.
• Check that the graphic board is completely seated in the proper bus slot.
If the MONITOR IS IN POWER
SAVE MODE message appeared on
the screen, or if the
SAVE MODE message appeared on
the screen, or if the
1
(power)
indicator is either orange or
alternating between green and
orange
alternating between green and
orange
x
Problems caused by the connected computer or other equipment
• The computer is in power saving mode. Try pressing any key on the computer keyboard.
• Check that the computer’s power is “on.”
• Check that the graphic board is completely seated in the proper bus slot.
• Check that the computer’s power is “on.”
• Check that the graphic board is completely seated in the proper bus slot.
If the OUT OF SCAN RANGE
message appears on the screen
message appears on the screen
x
Problems caused by the connected computer or other equipment
• Check that the video frequency range is within that specified for the monitor. If you
replaced an old monitor with this monitor, reconnect the old monitor and adjust the
frequency range to the following.
Horizontal: 30 – 107 kHz
Vertical: 48 – 120 Hz
frequency range to the following.
Horizontal: 30 – 107 kHz
Vertical: 48 – 120 Hz
If no message is displayed and the
1
(power) indicator is green or flashing
orange
orange
• Use the Self-diagnosis function (page 19).
If using Windows 95/98
• If you replaced an old monitor with this monitor, reconnect the old monitor and do the
following. Install the Windows Monitor Information Disk (page 7) and select this monitor
(“CPD-G400”) from among the Sony monitors in the Windows 95/98 monitor selection
screen.
(“CPD-G400”) from among the Sony monitors in the Windows 95/98 monitor selection
screen.
If using a Macintosh system
• Check that the Macintosh adapter and the video signal cable are properly connected
(page 6).
Picture flickers, bounces,
oscillates, or is scrambled
oscillates, or is scrambled
• Isolate and eliminate any potential sources of electric or magnetic fields such as other
monitors, laser printers, electric fans, fluorescent lighting, or televisions.
• Move the monitor away from power lines or place a magnetic shield near the monitor.
• Try plugging the monitor into a different AC outlet, preferably on a different circuit.
• Try turning the monitor 90
• Try plugging the monitor into a different AC outlet, preferably on a different circuit.
• Try turning the monitor 90
°
to the left or right.
x
Problems caused by the connected computer or other equipment
• Check your graphics board manual for the proper monitor setting.
• Confirm that the graphics mode (VESA, Macintosh 16" Color, etc.) and the frequency of
• Confirm that the graphics mode (VESA, Macintosh 16" Color, etc.) and the frequency of
the input signal are supported by this monitor (Appendix). Even if the frequency is within
the proper range, some video boards may have a sync pulse that is too narrow for the
monitor to sync correctly.
the proper range, some video boards may have a sync pulse that is too narrow for the
monitor to sync correctly.
• Adjust the computer’s refresh rate (vertical frequency) to obtain the best possible picture.
Picture is fuzzy
• Adjust the brightness and contrast (page 10).
• Degauss the monitor* (page 13).
• Select MOIRE ADJUST and adjust the moire cancellation effect (page 13).
• Degauss the monitor* (page 13).
• Select MOIRE ADJUST and adjust the moire cancellation effect (page 13).
(continued)
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