Sony GDM-FW900 check, Symptom, is visible, Controller, does not operate, Check these items, power is turned on, Picture is ghosting, may lose uniformity

Symptom	Check these items
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

•Press the ASC button (page 9).

•Adjust the size or centering (page 12). Note that some video modes do not fill the screen to the edges.

Edges of the image are curved

• Adjust the geometry (page 12).

Wavy or elliptical pattern (moire)

• Set CANCEL MOIRE to ON and adjust the degree of moire cancellation until the moire is

is visible

at a minimum (page 14).

xProblems caused by the connected computer or other equipment

• Change your desktop pattern.

Color is not uniform

• Degauss the monitor* (page 15). 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 14).

White does not look white

• Adjust the color temperature (page 12).

• Check that the five BNC connectors are connected in the correct order (page 6).

Letters and lines show red or blue

• Adjust the convergence (page 15).

shadows at the edges

Monitor buttons do not operate

• If the control lock is set to ON, set it to OFF (page 15).

(

appears on the screen)

IMAGE RESTORATION function

• Before using this function, the monitor must be in normal operation mode (green power

does not operate

indicator on) for at least 30 minutes. For more information on using the IMAGE

RESTORATION function, see page 14.

COLOR

• Adjust the computer’s power saving settings to keep the monitor in normal operation

EASY

EXPERT

s RGB

mode for more than 30 minutes.

5 0 0 0 K 6 5 0 0 K 9 3 0 0 K

• The monitor may gradually lose its ability to perform this function due to the natural aging

5 0 0 0 K

I MAGE

of the picture tube.

RES TORA T I ON

AVA I L AB L E

A F T ER WARM UP

USB peripherals do not function

• Check that the appropriate USB connectors are securely connected (page 8).

• Check that the ! (power) switch is in the “on” position.

xProblems caused by the connected computer or other equipment

• Check that the power of any self-powered USB compliant peripheral devices is “on.”

• Install the latest version of the device driver on your computer. Contact your device’s

manufacturer for information about the appropriate device driver.

• If your USB compliant keyboard or mouse does not function, connect them directly to

your computer, reboot your computer, and make any necessary adjustments to the USB

settings. Then reconnect the keyboard or mouse to the monitor. If you connect a keyboard

or mouse to the USB connectors and then boot your computer for the first time, the

peripheral devices may not function.

• For customers using Windows 95

1. Right-click on My Computer and select Properties.

2. Click on the Device Manager tab. Scroll down and select Universal Serial Bus

Controller.

If Universal Serial Bus Controller does not appear, you need to load a USB supplement

disk. Contact your computer’s manufacturer for more information about obtaining a

USB supplement disk.

3. Select Generic USB Device from the USB controller list and click on Properties.

4. If there is a check in the box next to “Disable in this hardware profile,” remove the

check.

5. Click on Refresh.

A hum is heard right after the

• This is the sound of the auto-degauss cycle. When the power is turned on, the monitor is

power is turned on

automatically degaussed for 3 seconds.

*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.