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16
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.
On-screen messages
If there is something wrong with the input signal, one of the
following messages appears on the screen.
If NO INPUT SIGNAL appears on line
1
This indicates that no signal is input from the selected connector.
If OUT OF SCAN RANGE appears on line
1
This indicates that the input signal is not supported by the
monitor’s specifications.
For more information, see “Trouble symptoms and remedies” on
page 17.
2
The selected connector
This message shows the currently selected connector
(INPUT 1 or INPUT 2).
3
The remedies
One or more of the following messages may 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 graphic board is completely
seated in the correct bus slot.
• If CHECK INPUT SELECTOR appears on the screen, try
changing the input signal (page 8).
• If CHECK SIGNAL CABLE appears on the screen, check
that the monitor is correctly connected to the computer
(page 6).
Damper wires
MON I TOR I S WORK I NG
INPUT 1 :
NO I NPUT S IGNAL
ACTI VATE BY COMPUT RE
CHECK I NPUT SELECT RO
CHECK SIGNAL CABLE
WH I T E
RED
GREEN
BLUE
INFORMATION
2
The 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.
3
The 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 graphic board so that
the horizontal frequency is between 30 - 121 kHz, and the
vertical frequency is between 48 - 160 Hz.
MON I TOR I S WORK I NG
INPUT 1:130.0kHz/ H57
OUT OF SCAN RANGE
CHANGE S I GNAL T I MI NG
WH I T E
RED
GREEN
BLUE
INFORMATION
z
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