Sony GDM-F400 - Manual (Page 16)

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 18) if the following recommendations do not resolve the problem.
Symptom Check these items
No picture
If the cl) (power) indicator is not lit Check that the power cord is properly connected.
Check that the (1) (power) switch is in the “on” position.
If the NO INPUT SIGNAL message
appears on the screen, or if the (1)
(power) indicator is either orange or
alternating between green and
orange
Check that the video signal cable is properly connected and all plugs are firmly seated i
their sockets. If you are using the five BNC connectors, connect them in the correct ord^
(from left to right: Red-Green-Blue-HD-'VD) (page 6).
Check that the input select setting is correct (page 9).
Check that the HD15 video input connector’s pins are not bent or pushed in.
• The computer is in power saving mode. Try pressing any key on the computer keyboardi;
• Check that the computer’s power is “on.” t
• Check that the graphic board is completely seated in the proper bus slot. i
If the OUT OF SCAN RANGE
message appears on the screen ■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 (GDM-F400), 30 - 121 kHz (GDM-F500)
Vertical: 48 - 160 Hz ‘
If no message is displayed and the (!)
(power) indicator is green or flashing
orange • Use the Self-diagnosis function (page 18).
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 monitr
(“GDM-F400” or “GDM-F5(X3”) from among the Sony monitors in the Windows 95/98
monitor selection screen. If you choose to select “Plug and Play,” connect the monitor t№
the computer with the HD15 video signal cable. You cannot use the five BNC connecto®
If using a Macintosh system • Check that the Macintosh adapter and the video signal cable are properly coimected *
(page 6). 1
Picture flickers, bounces,
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° to the left or right.
IProblems 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 21" Color, etc.) and the frequency oj
the input signal are supported by this monitor (page i). Even if the frequency is within i
proper range, some video boards may have a sync pulse that is too narrow for the monitc
to sync correctly.
Adjust the computer’s refresh rate (vertical frequency) to obtain the best possible pict
Picture is fuzzy Adjust the brightness and contrast (page 11).
Degauss the monitor* (page 14).
If CANCEL MOIRE is ON, the picture may become fuzzy. Decrease the moire
cancellation effect or set CANCEL MOIRE to OFF (page 13).
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