Sony GDM-FW900 Manual

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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 20) if the following recommendations do not resolve the problem.
Symptom
Check these items
No picture
If the ! (power) indicator is not lit
• Check that the power cord is properly connected.
• Check that the ! (power) switch is in the “on” position.
If the NO INPUT SIGNAL message 
appears on the screen, or if the 
! (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 in 
their sockets (page 6).
• Check that the INPUT switch setting is correct (page 9).
• Check that the video input connector’s pins are not bent or pushed in.
x
Problems caused by the connected computer or other equipment
• The computer is in power saving mode. Try pressing any key on the keyboard or moving 
the mouse.
• 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
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 – 121 kHz
Vertical: 48 – 160 Hz
If no message is displayed and the 
! (power) indicator is green or 
flashing orange
• Use the Self-diagnosis function (page 20).
If using Windows 95/98
• If your PC/graphic board has difficulty communicating with this monitor, download the 
specific driver by accessing the web site of Microsoft Corporation.
If using a Macintosh system
• When connecting to a Power Mac G3/G4 that has 3 rows of pins, check that the supplied 
exclusive Power Mac G3/G4 adapter and the video signal cable are properly connected 
(page 6).
• If you connect to the other version of Macintosh series computer that has 2 rows of pins, 
you will need a different adapter (not supplied).
Picture flickers, bounces, 
oscillates, or is scrambled
• Isolate and eliminate any potential sources of electric or magnetic fields such as other 
monitors, laser printers, fluorescent lighting, televisions, or electric fans.
• 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.
x
Problems caused by the connected computer or other equipment
• Check your graphic board manual for the proper monitor setting.
• Confirm that the graphics mode (VESA, Macintosh 21" 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 graphic 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 11).
• Degauss the monitor* (page 15).
• If CANCEL MOIRE is ON, the picture may become fuzzy. Decrease the moire 
cancellation effect or set CANCEL MOIRE to OFF (page 14).