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1-8

18

This monitor has factory preset modes for the most popular
industry standards for true “plug and play” compatibility.

When a new input signal is entered, the monitor selects the
appropriate factory preset mode and momentarily adjusts
the phase calibration to provide a high quality picture to the
center of the screen.  The calibration is stored in memory
and is immediately recalled whenever the same input signal
is received.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

×

640 

×

 350

640 

×

 480

640 

×

 480

640 

×

 480

720 

×

 400

720 

×

 400

800 

×

 600

800 

×

 600

800 

×

 600

832 

×

 624

1024 

×

 768

1024 

×

 768

1024 

×

 768

1024 

×

 768

1024 

×

 768

1152 

×

 864

1152 

×

 870

1280 

×

 960

1280 

×

 960

1280 

×

 1024

1280 

×

 1024

1280 

×

 1024

1600 

×

 1200

1600 

×

 1200

1600 

×

 1200

1600 

×

 1200

31.5 kHz

31.5 kHz

37.5 kHz

43.3 kHz

31.5 kHz

37.9 kHz

37.9 kHz

46.9 kHz

53.7 kHz

49.7 kHz

48.4 kHz

56.5 kHz

60.0 kHz

60.2 kHz

68.7 kHz

67.5 kHz

68.7 kHz

60.0 kHz

85.9 kHz

64.0 kHz

80.0 kHz

91.1 kHz

75.0 kHz

81.3 kHz

87.5 kHz

93.8 kHz

70 Hz

60 Hz

75 Hz

85 Hz

70 Hz

85 Hz

60 Hz

75 Hz

85 Hz

75 Hz

60 Hz

70 Hz

75 Hz

75 Hz

85 Hz

75 Hz

75 Hz

60 Hz

85 Hz

60 Hz

75 Hz

85 Hz

60 Hz

65 Hz

70 Hz

75 Hz

MCGA

VGA-G

EVGA

VESA

VGA-Text

VESA

SVGA

ESVGA

VESA

Macintosh
16” Color

VESA

VESA

EUVGA

Macintosh
19” Color

VESA

VESA

Macintosh
21” Color

VESA

VESA

VESA

VESA

VESA

VESA

VESA

VESA

VESA

For input signals that do not match one of the factory preset
modes, the digital Multiscan technology of this monitor
performs all of the adjustments necessary to ensure that a
clear picture appears on the screen for any timing in the
monitor’s frequency range.  However, it may be necessary
to fine tune the vertical/horizontal size and centering.
Simply press the ASC button or adjust the monitor
according to the adjustment instructions.  The adjustments
are stored automatically as a user mode and recalled
whenever the corresponding input signal is received.  A
total of 15 user adjusted modes can be stored in memory.

Recommended horizontal and vertical timing
conditions
Horizontal sync width duty should be: >4.8% of total horizontal
time.
Horizontal blanking width should be: >2.8 µsec.
Vertical blanking width should be: > 450 µsec.

For Windows users, check your video board manual or the utility
program which comes with your graphic board and select the
highest available refresh rate to maximize monitor performance.

If you are using Windows 95, adjust the monitor’s
resolution and color number according to the steps below.
Refer also to the Windows 95 HELP files.
If you are using a Macintosh or compatible computer, Refer
to your computer’s instruction manual.

Note
Some settings may require that the computer be turned off then
back on to take effect. In this case, follow the on-screen instructions.

• The Color palette setting and  the actual number of  colors is as

follows:
High Color (16 bit)  n  65,536 colors
True Color (24 bit)  n  about 16.77 million colors

• In True color mode (24 bit), speed may be slower.
• The color number may vary according to your computer or

video board.

19

This monitor meets the power-saving guidelines set by
VESA and 

E

NERGY 

S

TAR, as well as the more stringent

NUTEK .
If the monitor is connected to a computer or video graphics
board that is VESA DPMS (Display Power Management
Signaling) compliant, the monitor will automatically reduce
power consumption in three stages as shown below.

1

2

3

4

5

u

Green

Green and orange
alternate

Green and orange
alternate

Orange

Off

Normal operation

Standby (1st mode)

Suspend (2nd mode)

Active-off (3rd mode)

Power-off

active

blank

blank

blank

—

present

absent

present

absent

—

present

present

absent

absent

—

You can set the delay time before the monitor enters the
power saving mode using the OSD. Set the time according
to “Setting the power saving delay time” on page 16.

Note
If no video signal is input to the monitor, the “NO INPUT
SIGNAL” message (page 20) appears.  After the delay time has
passed, the power saving function automatically puts the monitor
into the active-off mode and the u indicator lights up orange. Once
the horizontal and vertical sync signals are detected, the monitor
automatically resumes its normal operation mode.

When viewing a white background, very thin horizontal lines
may be visible on the screen as shown below. These lines are
the shadows of the damper wires and are characteristic of
CRTs that use aperture grilles. The wires are attached to the
aperture grille on the inside of the Trinitron tube and prevent
the vibration of the aperture grille.

This monitor complies with the DDC



1, DDC2B, DDC2AB

and DDC2B+ Display Data Channel (DDC) standards of
VESA.
When a DDC1 host system is connected, the monitor
synchronizes with the V. CLK in accordance with the VESA
standards and outputs the EDID (Extended Display
Identification Data) to the data line.
When a DDC2B, DDC2AB or DDC2B+ host system is
connected, the monitor automatically switches to the
appropriate standard.

DDC



 is a trademark of the Video Electronics Standard

Association.

Note
When using Windows

®

 95, the DDC standard does not apply to the

5 BNC connectors. If you use the DDC standard, connect the HD15
connector to the computer with the supplied video signal cable.

≤

 160 W

≤

 100 W

≤

 15 W

≤

 5 W

0 W

—

Approx. 3 sec.

Approx. 3 sec.

Approx. 10 sec.

—

You can display the model name, serial number and year of
manufacture using the monitor‘s INFORMATION OSD.

Press and hold the MENU button for 5 seconds.
The INFORMATION OSD appears.

The INFORMATION OSD includes the model name, serial
number, manufactured year, and manufactured week.

The OSD automatically disappears after about 30 seconds.

MENU

INFORMAT I ON

SER NO : 1234567

MODEL : CPD   520GS  

MANUFACTURED :1998 52

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20

If there is something wrong with the input signal, one of the
following messages appears.

1 The input signal condition

“OUT OF SCAN RANGE” indicates that the input signal
is not supported by the monitor’s specifications.

“NO INPUT SIGNAL” indicates that no signal is input, or
the input signal from the selected input connector is not
received.

2 The selected input connector

Indicates which input connector is receiving the wrong
signal. If there is something wrong with the signal from
both input connectors, “HD15” and “BNC” are
displayed alternately.

To solve these problems, see “Troubleshooting” below.

This section may help you isolate the cause of a problem and as a result, eliminate the need to contact technical support.

If the u indicator  is not lit

If the “NO INPUT SIGNAL”
message appears on the screen,
or if the u indicator is either
orange or alternating between
green and orange

If the “OUT OF SCAN RANGE”
message appears on the screen

If no message is displayed and
the u indicator is green or
flashing orange

If using a Macintosh system

If using Windows



 95

• Check that the power cord is properly connected.
• Check that the u (power) switch is in the “on” position.

• The screen is blank when the monitor is in power saving mode. Try pressing any key on the

computer keyboard.

• Check that your computer power switch is in the “on” position.
• Check that the input select setting is correct.
• Check that the video signal cable is properly connected and all plugs are firmly seated in

their sockets.

• Check that the 5 BNCs are connected in the correct order (from left to right: Red–Green–

Blue–HD–VD) (page 6).

• Ensure that no pins are bent or pushed in the HD15 video input connector.
• Check that the video board is completely seated in the proper bus slot.

• Check that the video frequency range is within that specified for the monitor.

Horizontal: 30 – 96 kHz, Vertical: 48 – 160 Hz
Refer to your computer’s instruction manual to adjust the video frequency range.

• If you are using a video signal cable adapter, check that it is correct.

• See “Self-diagnosis Function” (page 22).

• Check that the Macintosh adapter and the video signal cable are properly connected (page

6).

• If you cannot find your model’s name (CPD-520GS) among the Sony monitors in the

Windows 95 monitor selection screen, select the DDC standard monitor or install the
Windows 95 Monitor Information Disk (page 7).
The DDC standard does not apply to the 5 BNC connectors. If you use the DDC standard,
connect the computer to the HD15 connector with the supplied video signal cable.

• Check your graphics board manual for the proper monitor setting.
• Check this manual and confirm that the graphics mode and the frequency you are trying to

operate at is supported. 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.

    INFORMATION

OUT  OF  SCAN  RANGE

INPUT : HD15

21

• Degauss the monitor (page 15).

If you place equipment which generates a magnetic field, such as a loudspeaker, near the
monitor, or you change the direction of the monitor, color may lose uniformity.
The degauss function demagnetizes the metal frame of the CRT to obtain a neutral field for
uniform color reproduction. If a second degauss cycle is needed, allow a minimum interval
of 20 minutes for the best result.

• Adjust the landing (pages 13 – 14).

• If the control lock function is set to on, set it to off using the OPTION OSD (page 16).

• Adjust the color temperature (pages 12 – 13).
• Check that the 5 BNCs are connected in the correct order (from left to right: Red–Green–

Blue–HD–VD) (page 6).

• Press the ASC button (page 7).
• Adjust the size or centering (page 10).
• Some video modes do not fill the screen to the edges. This problem tends to occur with

certain video boards.

• Adjust the geometry (page 11).

• Adjust the convergence (pages 13 – 14).

• Adjust the contrast and brightness (page 9).
• Degauss the monitor (page 15).

If you place equipment which generates a magnetic field, such as a loudspeaker, near the
monitor, or you change the direction of the monitor, color may lose uniformity.
The degauss function demagnetizes the metal frame of the CRT to obtain a neutral field for
uniform color reproduction. If a second degauss cycle is needed, allow a minimum interval
of 20 minutes for the best result.

• If red or blue shadows appear along the edges of images, adjust the convergence

(pages 13 – 14).

• If the moire is cancelled, the picture may become fuzzy.  Decrease the moire cancellation

effect (pages 13 – 14).

• Isolate and eliminate any potential sources of electric or magnetic fields. Common causes

for this symptom are electric fans, fluorescent lighting or laser printers.

• If you have another monitor close to this monitor, increase the distance between them to

reduce the interference.

• Try plugging the monitor into a different AC outlet, preferably on a different circuit.
• Try the monitor on a different computer in a different room.

• Set the refresh rate on the computer to obtain the best possible picture by referring to the

computer’s manual.

• Eliminate the use of video cable extensions and/or video switch boxes if this symptom

occurs. Excessive cable length or a weak connection can produce this symptom.

• Cancel the moire (pages 13 – 14).

The moire may be modified depending on the connected computer.

• Due to the relationship between resolution, monitor dot pitch and the pitch of some image

patterns, certain screen backgrounds sometimes show moire. Change your desktop pattern.

• These wires stabilize the vertically striped aperture grille (page 19). This aperture grille

allows more light to pass through to the screen giving the Trinitron CRT more color and
brightness.

• When the power is turned on, the auto-degauss cycle is activated.  While the auto-degauss

cycle is activated (3 seconds), a hum may be heard.  The same hum is heard when the
monitor is manually degaussed. This is not a malfunction.

22

This monitor is equipped with a self-diagnosis function.  If
there is a problem with your monitor or computer(s), the
screen will go blank and the u indicator will either light up
green or flash orange.

If the u

u

u

u

u

Press and hold the >/ button for 2 seconds.

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

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

If the u

u

u

u

u

Press the u

u

u

u

u

If the u indicator lights up green, the monitor is
working properly.

If the u indicator is still flashing, there is a potential
monitor failure. Count the number of seconds between
orange flashes of the u 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.

u

Picture tube

0.25 – 0.27 mm aperture grille pitch
21 inches measured diagonally
90-degree deflection

Viewable image size

Approx. 403.8 

×

 302.2 mm (w/h)

(16 

×

 12

 

inches)

19.8” viewing image

Resolution

Horizontal: Max. 1600 dots
Vertical: Max. 1200 lines

Standard image area

Approx. 388 

×

 291 mm (w/h)

(15 

3

/

8 

 

×

 11 

1

/

2

 inches)

or
Approx. 364 

×

 291 mm (w/h)

(14 

3

/

8

 

×

 11 

1

/

2

 inches)

Deflection frequency

Horizontal: 30 to 96 kHz
Vertical: 48 to 160 Hz

AC input voltage/current

100 to 240 V, 50 – 60 Hz, 2.0 – 1.0 A

Power consumption

Max. 160 W

Dimensions

498 

×

 505 

×

 474 mm (w/h/d)

(19 

5

/

8

 

×

 20 

×

 18 

3

/

4

 inches)

Mass

Approx. 31 kg (68 lb 5 oz)

Supplied accessories

See page 6

Design and specifications are subject to change without
notice.

1-10

2-1

Top cover

Four screws

(+ BVTT 4 x 8)

Four screws

(+ BVTT 4 x 8)

Video shield

4

5

6

8

Screw cover

Cabinet

3

Four screws

(+ BVTP 4 x 16)

2

1

Two claws

Screw cover

7

GND

Two screws

(+ BVTT 4 x 8)

Two screws

(+ BVTP 3 x 10)

D board

Screw

(+ P 3.5 x 20)

Open the D block in the direction
of the arrow    . and remove of
the arrow    .

Three hooks

6

Screw

(+ BVTT 4 x 8)

1

2

3

4

5