Acer AL1521 Computer Monitor User Manual


 
41L1500-786-1A 英文
13
TECHNICAL SUPPORT (FAQ)
Problem & Question Possible Solution
Power LED is not on *Check that the Power Switch is in the
ON position
*Power Cord should be connected
No Plug & Play *Check that the PC system is Plug &
Play compatible
*Check that the Video Card is Plug &
Play compatible
*Check that the D-15 plug pin of Video
Cable is not 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 (light
blue) but there’s no video or no
picture.
*The Computer Power Switch should be
in the ON position.
*The Computer Video Card should be
snugly seated in its slot.
*Make sure the video cable is properly
connected to the computer.
*Inspect the video cable and make sure
none of the pins are bent.
*Make sure the 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 video cable and make sure
that none of the pins are bent.