Sony Trinitron GDM-400PST Mode D'emploi page 20

Additional Information Additional Information
Warning Messages
If there is something wrong with the input signal, one of the
following messages appears.
INFORMATION
OUT OF SCAN RANGE
INPUT : HD15
Troubleshooting
This section may help you isolate the cause of a problem and as a result, eliminate the need to contact technical support.
Symptom
No picture
If the u indicator is not lit
If the "NO INPUT SIGNAL"
message appears on the screen,
or if the u 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 u indicator is green or
flashing orange
If using a Macintosh system
®
If using Windows 95
Picture is scrambled
20
Check these items
• Check that the power cord is properly connected.
• Check that the u (power) switch is in the "on" position.
• The screen is blank when the monitor is in power saving mode. Try pressing any key on the
computer keyboard.
• Check that your computer power switch is in the "on" position.
• Check that the input select setting is correct.
• Check that the video signal cable is properly connected and all plugs are firmly seated in
their sockets.
• Check that the 5 BNCs are connected in the correct order (from left to right: Red–Green–
Blue–HD–VD) (page 6).
• Ensure that no pins are bent or pushed in the HD15 video input connector.
• Check that the video board is completely seated in the proper bus slot.
• Check that the video frequency range is within that specified for the monitor.
Horizontal: 30 – 94 kHz (GDM-400PST), 30 – 107 kHz (GDM-500PST)
Vertical: 48 – 160 Hz
Refer to your computer's instruction manual to adjust the video frequency range.
• If you are using a video signal cable adapter, check that it is correct.
• See "Self-diagnosis Function" (page 22).
• Check that the Macintosh adapter and the video signal cable are properly connected
(page 6).
• If you cannot find your model's name (GDM-400PST or GDM-500PST) among the Sony
monitors in the Windows 95 monitor selection screen, select the DDC standard monitor or
install the Windows 95 Monitor Information Disk (page 7).
The DDC standard does not apply to the 5 BNC connectors. If you use the DDC standard,
connect the computer to the HD15 connector with the supplied video signal cable.
• 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 video
boards may have a sync pulse that is too narrow for the monitor to sync correctly.
1 The input signal condition
"OUT OF SCAN RANGE" indicates that the input signal
is not supported by the monitor's specifications.
"NO INPUT SIGNAL" indicates that no signal is input, or
the input signal from the selected input connector is not
received.
2 The selected input connector
Indicates which input connector is receiving the wrong
signal. If there is something wrong with the signal from
both input connectors, "HD15" and "BNC" are
displayed alternately.
To solve these problems, see "Troubleshooting" below.