Technical Support (Faq) - Envision EN7220 User Manual

TECHNICAL SUPPORT (FAQ)

Problem & Question
Power LED is not on
No Plug & Play
Picture is fuzzy
Picture bounces or a wave
pattern is present in the picture
The power LED is ON (orange)
but there's no video or no
picture.
Missing one of the primary
colors (RED, GREEN,
BLUE)
Screen image is not centered
or sized properly.
Picture has color defects
(white does not look white)
Horizontal or
disturbances on the screen
Possible Solution
*Check if the Power Switch is in the ON
position
*Power Cord should be connected
*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
*Adjust the Contrast and Brightness
Controls.
*Move electrical devices that may cause
electrical interference.
*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.
turn ON or OFF after hitting the CAPS
LOCK key.
*Inspect the monitor's video cable and
or make sure that none of the pins are
bent.
*Adjust pixel frequency (CLOCK) and
FOCUS or press hot-key (AUTO)
*Adjust RGB color or select color
temperature
vertical *Use win 95/98 shut-down mode Adjust
CLOCK and FOCUS or perform hot-
key (AUTO-key).
20
EN7220
The LED should either