Troubleshooting

Before contacting technical support, refer to this section.

If thin lines appear on your screen (damper wires)

The visible lines on your screen especially when the background screen color is light (usually white), are normal for the Trinitron monitor. This is not a malfunction. These are shadows from the damper wires used to stabilize the aperture grille. The aperture grille is the essential element that makes a Trinitron picture tube unique by allowing more light to reach the screen, resulting in a brighter, more detailed picture.

Damper wires

On-screen messages

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

If NO SIGNAL appears on section 1

This indicates that no signal is input from the selected connector.

 

 

I NFORMAT I ON

 

 

 

 

 

 

MON I TOR

I

S

WORK I NG

 

 

 

 

 

 

I NPUT

2

:

NO

S I GNAL

 

W

 

 

 

 

 

ACT I VATE

 

BY

COMPUTER

 

 

 

 

 

 

 

 

 

 

 

 

 

CHECK

S I GNAL

CABLE

R

 

 

 

 

 

 

 

 

 

CHECK

I NPUT

SELECTOR

G

 

 

 

 

 

 

 

 

 

 

 

B

 

2The selected connector

This message shows the currently selected connector (INPUT 1 or INPUT 2).

3The remedies

The following messages appear on the screen.

•If ACTIVATE BY COMPUTER appears on the screen, try pressing any key on the computer or moving the mouse, and confirm that your computer’s graphics board is completely seated in the correct bus slot.

•If CHECK SIGNAL CABLE appears on the screen, check that the monitor is correctly connected to the computer (page 6).

•If CHECK INPUT SELECTOR appears on the screen, try changing the input signal (page 8).

If OUT OF SCAN RANGE appears on line 1

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

 

I NFORMAT I ON

 

 

 

MONI TOR

I S WORK I NG

 

 

 

 

I NPUT

1 : 2 0 0 . 0 k H z / 85Hz

 

 

 

 

 

W

 

 

OUT OF

SCAN RANGE

 

 

 

CHANGE

S I GNAL T I M I NG

R

 

 

G

 

 

 

 

 

 

 

B

 

2The selected connector and the frequencies of the current input signal

This message shows the currently selected connector (INPUT 1 or INPUT 2). If the monitor recognizes the frequencies of the current input signal, the horizontal and vertical frequencies are also displayed.

3The remedies

CHANGE SIGNAL TIMING appears on the screen. If you are replacing an old monitor with this monitor, reconnect the old monitor. Then adjust the computer’s graphics board so that the horizontal frequency is between 30 – 110 kHz, and the vertical frequency is between 48 – 170 Hz.

For more information, see “Trouble symptoms and remedies” on page 19.

Displaying this monitor’s name, serial number, and date of manufacture.

While the monitor is receiving a video signal, press and hold the MENU button for more than 5 seconds to display this monitor’s information box.

MENU

Example

 

 

 

b

INFORMATION

 

MODEL : CPD G420S

W

SER NO : 1234567

R

 

MANUFACTURED : 2000-52

G

 

 

B

If the problem persists, call your authorized Sony dealer and give the following information.

•Model name: CPD-G420S

•Serial number

•Name and specifications of your computer and graphics board.

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