Samsung SyncMaster 773DFX User Manual page 32

Troubleshooting
Symptom
The image on the screen is
shaking.
The screen shows strange
colors or just black and
white.
The screen suddenly has
become unbalanced.
Check List
Check the monitor
configuration to see if it is in
Interlace Mode. (Interlace
Mode: Vertical frequency
43Hz, 87Hz(i), etc)
Are there any magnetic
products such as a power
adapter, speaker or a high
voltage wire near by?
Is the voltage stable?
The screen image can also appear to shake or vibrate if there is a
problem with the video card or the computer's main board.
Is the screen displaying only
one color as if looking at the
screen through a cellophane
paper?
Have the screen colors
become strange after
running a program or due to a
crash between applications?
Has the video card been set
properly?
Have you changed the video
card or the driver?
Have you adjusted the
resolution or frequency to the
monitor?
The screen can be unbalanced due to the cycle of the video card
signals. Readjust Position by referring to the OSD.
Solutions
The signal from the video card
exceeds the maximum resolution and
frequency of the monitor.
Move the monitor away from anything
that can create a strong magnetic field.
The screen image can appear to shake
or vibrate at a particular time of day
due to low supply voltage.
Check the signal cable connection.
Make sure the video card is fully
inserted in it's slot.
Reboot the computer.
Set the video card by referring to the
video card manual.
Adjust screen image position and size
using the OSD.
Adjust the resolution and frequency at
the video card.
(Refer to the Preset Display Modes).