1-7
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
monitorís specifications.
For more information, see ì Trouble symptoms and remediesî 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.
ï If ACTIVATE BY COMPUTER appears on the screen, try
pressing any key on the computer or moving the mouse, and
confirm that your computerís graphic board is completely
seated in the correct bus slot.
ï If CHECK INPUT SELECTOR appears on the screen, try
changing the input signal (page 8).
ï 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
I NPUT
1 :
NO
I NPUT
S I GNA L
ACT I VA T E BY COMPUT R
E
CHECK
I NPUT SE L ECT R
O
CHECK S I GNA L CAB L E
WH I T E
RED
GREEN
B L UE
I NFORMA T I ON
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 computerís 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
I NPUT
1 : 1 3 0 . 0 k H z /
H
5
7
OUT OF SCAN RANGE
CHANGE S I GNA L
T I M I NG
WH I T E
RED
GREEN
B L UE
I NFORMA T I ON
z
17
GB
Trouble symptoms and remedies
If the problem is caused by the connected computer or other equipment, please refer to the connected equipmentís instruction manual.
Use the self-diagnosis function (page 19) if the following recommendations do not resolve the problem.
Symptom
Check these items
No picture
If the
!
(power) indicator is not lit
ï Check that the power cord is properly connected.
ï Check that the
!
(power) switch is in the ì onî position.
If the NO INPUT SIGNAL message
appears on the screen, or if the
!
(power) indicator is either orange
or alternating between green and
orange
ï Check that the video signal cable is properly connected and all plugs are firmly seated in
their sockets (page 6).
ï Check that the INPUT switch setting is correct (page 8).
ï Check that the video input connectorís pins are not bent or pushed in.
x
Problems caused by the connected computer or other equipment
ï The computer is in power saving mode. Try pressing any key on the keyboard or moving
the mouse.
ï Check that the computerís power is ìo n.î
ï 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
Problems caused by the connected computer or other equipment
ï 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 ñ 121 kHz
Vertical: 48 ñ 160 Hz
If no message is displayed and the
!
(power) indicator is green or
flashing orange
ï Use the Self-diagnosis function (page 19).
Picture flickers, bounces,
oscillates, or is scrambled
ï Isolate and eliminate any potential sources of electric or magnetic fields such as other
monitors, laser printers, fluorescent lighting, televisions, or electric fans.
ï Move the monitor away from power lines.
ï Try plugging the monitor into a different AC outlet, preferably on a different circuit.
ï Try turning the monitor 90
°
to the left or right.
x
Problems caused by the connected computer or other equipment
ï Check your graphic board manual for the proper monitor setting.
ï Confirm that the graphics mode and the frequency of the input signal are supported by this
monitor (Appendix). Even if the frequency is within the proper range, some graphic
boards may have a sync pulse that is too narrow for the monitor to sync correctly.
ï Adjust the computerís refresh rate (vertical frequency) to obtain the best possible picture.
Picture is fuzzy
ï Adjust the brightness and contrast (page 10).
ï Degauss the monitor* (page 14).
ï If CANCEL MOIRE is ON, the picture may become fuzzy. Decrease the moire
cancellation effect or set CANCEL MOIRE to OFF (page 13).
Picture is ghosting
ï Eliminate the use of video cable extensions and/or video switch boxes.
ï Check that all plugs are firmly seated in their sockets.
Picture is not centered or sized
properly
ï Press the ASC button (page 8).
ï Adjust the size or centering (page 11). Note that some video modes do not fill the screen
to the edges.
Edges of the image are curved
ï Adjust the geometry (page 11).
(continued)
