Sony CPD-E430: Troubleshooting

x Letters and lines show red or blue shadows at the

edges

Troubleshooting

• Adjust the convergence.

x No picture

x A hum is heard right after the power is turned on

If the ! (power) indicator is not lit

• This is the sound of the auto-degauss cycle. When the power is

• Check that the power cord is properly connected.

turned on, the monitor is automatically degaussed for a few seconds.

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

* 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

The ! (power) indicator is orange

not a malfunction.

• 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

On-screen messages

pushed in.

• Check that the computer’s power is “on”.

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• The computer is in power saving mode. Try pressing any key on the

IIONNFORMAT

computer keyboard or moving the mouse.

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• Check that the graphic board is completely seated in the proper bus

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NPUT

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S

GNALI

ACT

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BY

COMPUTER

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slot.

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CHECK

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If the ! (power) indicator is green or flashing orange

B

• Use the Self-diagnosis function.

x Picture flickers, bounces, oscillates, or is scrambled

1 If “NO SIGNAL” appears:

• Isolate and eliminate any potential sources of electric or magnetic

This indicates that no signal is input from the connector.

fields such as other monitors, laser printers, electric fans, fluorescent

2 Shows the remedies.

lighting, or televisions.

• If ACTIVATE BY COMPUTER appears on the screen, try

• Move the monitor away from power lines or place a magnetic shield

near the monitor.

pressing any key on the computer or moving the mouse, and

• Try plugging the monitor into a different AC outlet, preferably on a

confirm that your computer’s graphic board is completely seated

different circuit.

in the correct bus slot.

• Try turning the monitor 90° to the left or right.

• If CHECK SIGNAL CABLE appears on the screen, check that

• Check your graphics board manual for the proper monitor setting.

the monitor is correctly connected to the computer.

• Confirm that the graphics mode and the frequency of the input signal

are supported by this monitor (see “Preset mode timing table” on

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page i). Even if the frequency is within the proper range, some

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graphics board may have a sync pulse that is too narrow for the

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monitor to sync correctly.

I :200.0kHz/ 85Hz

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• Adjust the computer’s refresh rate (vertical frequency) to obtain the

OUT OF SCAN

RANGE

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best possible picture.

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CHANGE

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x Picture is fuzzy

• Adjust the brightness, contrast.

1 If “OUT OF SCAN RANGE” appears:

• Degauss the monitor.*

This indicates that the input signal is not supported by the monitor’s

• Adjust the degree of moire cancellation until the moire is minimal,

specifications.

or set CANCEL MOIRE to OFF.

2 Shows the input signal frequency.

x Picture is ghosting

• Eliminate the use of video cable extensions and/or video switch

3 Shows the remedy.

boxes.

CHANGE SIGNAL TIMING appears on the screen. If you are

• Check that all plugs are firmly seated in their sockets.

replacing an old monitor with this monitor, reconnect the old

x Picture is not centered or sized properly

monitor. Then adjust the computer’s graphic board so that the

• Perform the Auto Size Center function.

horizontal frequency is between 30 – 96 kHz, and the vertical

• Adjust the size or centering. Note that with some input signals and/

frequency is between 48 – 170 Hz.

or graphics board the periphery of the screen is not fully utilized.

• Just after turning on the power switch, the size/center may take a

while to adjust properly.

x Edges of the image are curved

• Adjust the geometry.

x Wavy or elliptical pattern (moire) is visible

• Adjust the degree of moire cancellation until the moire is minimal.

• Change your desktop pattern.

x Color is not uniform

• Degauss the monitor.* 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.

x White does not look white

• Adjust the color temperature.

x Monitor buttons do not operate ( appears on the

screen)

• If the control lock is set to ON, set it to OFF.

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