HMD-V200 - Sony Audio Service Manual (repair manual). Page 10

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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 16) 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 
1 (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. 
• 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
• The computer is in power saving mode. Try pressing any key on the computer keyboard.
• Check that your computer’s power is “on.”
• Check that your computer’s graphics 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 – 70 kHz
Vertical: 48 – 120 Hz
If no message is displayed and the 
(power) indicator is green or flashing 
orange
• Use the Self-diagnosis function (page 16).
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 
(“HMD-V200”) 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
• 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.
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 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 graphics 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 9).
• Degauss the monitor* (page 11).
• If you adjust CANCEL MOIRE, the picture may become fuzzy. Decrease the moire 
cancellation effect (page 11).
15
US
* If a second degauss cycle is needed, allow a minimum interval of 20 minutes for the best result. A humming noise may be heard, but this is not a 
malfunction.
Displaying this monitor’s name, serial number, 
and date of manufacture.
While the monitor is receiving a video signal, press and hold the 
MENU button for more than five seconds to display this 
monitor’s information box.
If the problem persists, call your authorized Sony dealer and give 
the following information.
• Model name: HMD-V200
• Serial number
• Name and specifications of your computer and graphics board.
Picture is ghosting
• Eliminate the use of video cable extensions and/or video switch boxes.
• Check that all plugs are firmly seated in their sockets.
Picture is not centered or sized 
properly
• Adjust the size (page 9) or centering (page 9). Note that some video modes do not fill the 
screen to the edges.
Edges of the image are curved
• Adjust the geometry (page 10).
Wavy or elliptical pattern (moire) 
is visible
• Cancel the moire (page 11).
x
Problems caused by the connected computer or other equipment
• Change your desktop pattern.
Color is not uniform
• Degauss the monitor* (page 11). If you place equipment that generates a magnetic field, 
such as a speaker, near the monitor, or if you change the direction the monitor faces, color 
may lose uniformity.
• Adjust the landing (page 11).
White does not look white
• Adjust the color temperature (page 10).
Letters and lines show red or blue 
shadows at the edges
• Adjust the convergence (page 11).
Monitor buttons do not operate
• If the control lock is set to ON, set it to OFF (page 11).
There is no sound
• Raise the volume.
• If the 
% mark appears on the screen, press the % (mute) button to cancel the mute.
• Unplug your headphones from the monitor.
A hum is heard right after the 
power is turned on
• This is the sound of the auto-degauss cycle. When the power is turned on, the monitor is 
automatically degaussed for three seconds.
Symptom
Check these items
SER NO : 1234567
MODEL : HMD–V200
MANUFACTURED : 1999-52
 INFORMATION
MENU
b
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