CPD-2001G - Sony Monitor Service Manual (repair manual). Page 8

1-5

This monitor complies with the DDC

TM

1 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 host system is connected, the monitor
automatically switches to the appropriate standard.

DDC

TM

 is a trademark of Video Electronics Standard

Association.

• Your monitor operates according to DDC2B. Only

computers that support the same guidelines and operate
at the same or higher level can make use of this feature.

• If your computer does not support the relevant

guidelines, you can still use your monitor and computer.
You may need to manually specify the appropriate
resolution in the computer.

• The highest resolution automatically selected may not

give the best result. You may need to manually select the
most suitable resolution in the computer.

When viewing a white background, two very thin horizontal
lines may be visible on the screen as shown below. These lines
are the damper wires.
The Trinitron tube has a vertically striped aperture grille inside.
The aperture grille allows more light to pass through to the
screen giving the Trinitron CRT more color and brightness.
These damper wires are attached to the aperture grille to
prevent vibration of the aperture grille and keep the screen
image constantly stable.

This monitor has three Power Saving modes. By sensing the
absence of a video signal from the computer, it reduces power
consumption as follows.

Note
If no video signal is input to the monitor, the “NO INPUT
SIGNAL” message appears (page 12). After about 30 seconds, the
Power Saving function automatically puts the monitor into
active-off mode and the u indicator lights up orange. Once the
monitor detects horizontal and vertical sync signals, the monitor
automatically resumes normal operation mode.

1

2

3

4

5

Normal
operation

Standby
(1st mode)

Suspend
(2nd mode)

Active-off
(3rd mode)

Power-off

≤

 110 W

≤

 15 W

≤

 15 W

≤

 8 W

≈ 

0 W

—

Approx.
3 sec.

Approx.
3 sec.

Approx.
15 sec.

—

u indicator

Green

Green and orange
alternate

Green and orange
alternate

Orange

Off

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

• Make sure the power cord is properly connected.
• Make sure the u (POWER) switch is in the “ON” position.

• Try pressing any key on the computer keyboard.
• Make sure your computer is turned on.
• Make sure the video signal cable is properly connected and all plugs are firmly seated in

their sockets.

• Make sure none of the HD15 video input connector pins are bent or pushed in.
• Make sure the video board is completely seated in the proper bus slot.

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

Horizontal: 30 – 85 kHz
Vertical: 50 – 120 Hz
Refer to your computer system’s instruction manual to adjust the video frequency range.

• If you are using a video signal cable adapter, make sure it is the correct type.

• Run the SELF TEST function:

1. Turn off the monitor and disconnect the video cable from the computer.
2. Turn on the monitor and wait five seconds. The “NO INPUT SIGNAL” message

should appear with a color bar pattern. The message and pattern are displayed for 30
seconds.

If the monitor displays White, Red, Green and Blue colors, the monitor is functioning
properly.

• Make sure none of the HD15 video input connector pins are bent or pushed in.

• Check your video board manual for the proper monitor setting.
• Check this manual and make sure the monitor supports the graphics mode and the

frequency at which you are trying to operate. 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.

• Degauss the monitor (page 8).

If you place equipment which generates a magnetic field, such as a loudspeaker, near the
monitor, or you change the direction of the monitor, the color may not be uniform.
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.

“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.
The message disappears after about 30 seconds.

To solve these problems, see the “Troubleshooting” section
below.

INFORMATION

OUT  OF  SCAN  RANGE