15
TECHNICAL SUPPORT (FAQ)
Problem & Question
Possible Solution
Power LED is not on
*Check if the Power Switch is in the ON
position
*Power Cord should be connected
No Plug & Play
*Check if the PC system is Plug & Play
compatible
*Check if the Video Card is Plug & Play
compatible
*Check if the D-15 plug pin of Video Cable is
bent
Picture is fuzzy
*Adjust the Contrast and Brightness
Controls.
Picture bounces or a wave
pattern is present in the
picture
*Move electrical devices that may cause
electrical interference.
The power LED is ON but
there’s no video or no
picture.
*Computer Power Switch should be in the
ON position.
*Computer Video Card should be snugly
seated in its slot
*Make sure monitor’s video cable is properly
connected to the computer.
*Inspect monitor’s video cable and make
sure none of the pins are bent.
*Make sure computer is operational by hitting
the CAPS LOCK key on the keyboard while
observing the CAPS LOCK LED. The LED
should either turn ON or OFF after hitting
the CAPS LOCK key.
Missing one of the primary
colors (RED, GREEN, or
BLUE)
*Inspect the monitor’s video cable and make
sure that none of the pins are bent.
Screen image is not
centered or sized properly.
*Adjust pixel frequency (CLOCK) and
FOCUS or press hot-key (AUTO)
Picture has color defects
(white does not look white)
*Adjust RGB color or select color
temperature
Horizontal
or
vertical
disturbances
on
the
screen
*Use Win95/98/2000/ME/XP shut-down
mode Adjust CLOCK and FOCUS or
perform hot- key (AUTO-key).
CLOCK (pixel frequency) controls the number of pixels scanned by one horizontal
sweep. If the frequency is not correct, the screen shows vertical stripes and the
picture has not correct width.
FOCUS adjusts the phase of the pixel clock signal. With a wrong phase adjustment
the picture has horizontal disturbances in light picture.
For FOCUS and CLOCK adjustment use “dot-pattern” or Win95/98/2000/ME/XP
shut-down mode pattern.
