Sony CPD-G420 Operations Instructions download pdf (Page 20)

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 22) 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 SIGNAL message appears

on the screen, or if the

! (power) indicator is 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.

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

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 – 130 kHz (CPD-G520), 30 – 110 kHz (CPD-G420)

Vertical: 48

–

170 Hz

If no message is displayed and the

! (power) indicator is green or

flashing orange

• Use the Self-diagnosis function (page 22).

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.

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 contrast and brightness (page 12).

• Degauss the monitor* (page 14).

• Adjust the degree of moire cancellation until the moire is minimal, or set CANCEL

MOIRE to OFF (page 14).

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Sony CPD-G420 Operations Instructions Page 20

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