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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.

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 

1 

(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 7).
• Check that the HD15 video input connector’s pins are not bent or pushed in.

x

• Check that the computer’s power is “on.”
• Check that the graphic board is completely seated in the proper bus slot.

If the MONITOR IS IN POWER 
SAVE MODE message appeared on 
the screen, or if the 

1 (power) 

indicator is either orange or 
alternating between green and 
orange

x

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

• 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 – 96 kHz
Vertical: 48 – 120 Hz

If no message is displayed and the 

1 

(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 
(“CPD-G200”) from among the Sony monitors in the Windows 95/98 monitor selection 
screen.

If using a Macintosh system

• When connecting to a Power Mac G3 series computer (sold after January, 1999), check 

that the supplied Power Mac G3 adapter and the video signal cable are properly connected 
(page 6).

• For Macintosh systems other than the Power Mac G3 (sold after January, 1999), contact 

your authorized Sony dealer.

• 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

• Check your graphics board manual for the proper monitor setting.
• Confirm that the graphics mode (VESA, Macintosh 16" 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 video 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.

• Adjust the brightness and contrast (page 9).
• Degauss the monitor* (page 11).
• Select MOIRE ADJUST and adjust the moire cancellation effect (page 11).

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* 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.

While the monitor is receiving a video signal, press and hold the 
center of the control 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: CPD-G200
• Serial number
• Name and specifications of your computer and graphics board.

• Eliminate the use of video cable extensions and/or video switch boxes.
• Check that all plugs are firmly seated in their sockets.

• Adjust the size (page 9) or centering (page 9). Note that some video modes do not fill the 

screen to the edges.

• Adjust the geometry (page 10).

• Select MOIRE ADJUST and adjust the moire cancellation effect (page 11).

x

• Change your desktop pattern.

• 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 color temperature (page 10).

• Adjust the convergence (page 10).

• If the control lock is set to ON, set it to OFF (page 11).

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

automatically degaussed for five seconds.

MODE L : CPD - G2 0 0

SER NO : 1 2 3 4 5 6 7

MANUF ACTURED : 1 9 9

I NFORMA T I ON

9 - 5 2

Example

b

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This monitor is equipped with a self-diagnosis function. If there is 
a problem with your monitor or computer, the screen will go 
blank and the 

1 (power) indicator will either light up green or 

flash orange. If the 

1 (power) indicator is lit in orange, the 

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

1

1

,

If all four color bars appear (white, red, green, blue), the monitor 
is working properly. Reconnect the video input cable and check 
the condition of your computer.

If the color bars do not appear, there is a potential monitor failure. 
Inform your authorized Sony dealer of the monitor’s condition. 

1

1

If the 

1 (power) indicator lights up green, the monitor is working 

properly.

If the 

1 (power) indicator is still flashing, there is a potential 

monitor failure. Count the number of seconds between orange 
flashes of the 

1 (power) indicator and inform your authorized 

Sony dealer of the monitor’s condition. Be sure to note the model 
name and serial number of your monitor. Also note the make and 
model of your computer and video board.

1

 (power) indicator

4

Four screws
(+BVTT 3 x 8)

5

Three screws
(+BVTT 3 x 8)

1

Two screws
(+BVTP 4 x 16)

* Push screwdriver into opening and remove

two claws.

6

Release from four claws after slide EMI shield
to direction of arrows.

Claw

Claw

2

Two claws

Bezel assembly

Bezel assembly

Cabinet

Cabinet

7

EMI shield

3

Cabinet

2-1

1

Screw
(+BVTT 3 x 8)

CN601

GND

GND

GND

CN303

GND

7

Three screws
(+BVTT 3 x 12)

8

Four screws
(Washer head +P3 x 8) 

2

Cable stopper

5

A board

6

AA board

9

D board

3

Cable cover

4

Cable holder

1

2

A board

D board

3

(Note) The electric potential of heat sink of IC401 is not GND.

So please do not touch it absolutely to the base chassis
and etc., which make an ultimate cause of the bad move-
ment or break.

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