Troubleshooting - Acer EA220Q User Manual

Troubleshooting

Before sending your LCD monitor for servicing, please check the troubleshooting list
below to see if you can self-diagnose the problem
（VGA/HDM Model）
Problems that arise
The power indicator is not on
Unable to achieve plug-and-play • Whether the PC is matched with Plug & Play.
Dull image
Image jumping or rippling
screen
The power indicator is on, but
the monitor has no image
display
Missing colors (red, green, blue) •Check whether the signal line is loose from the monitor and PC
The screen is not in the middle of
the size is not appropriate
The screen shows "Signal cable
is not connected"
The screen displays
"Overclock-Go to Standby"
•Possible solutions
•Whether the power is on or not.
•Whether the power cord is connected or not
• Whether the pin of the VGA signal cable connector is bent.
•Adjusts brightness and contrast.
•Peripheral electrical equipment that may cause electronic
interference.
•Loose contact between signal cable interface
•The computer is powered on.
•Whether the computer graphics card is plugged in or not.
•Make sure that the monitor signal cable is properly connected to
the computer.
•Check the monitor signal cable plug and make sure the pins are not
bent.
•Verify that the computer is operating by pressing the Caps Lock key
on the PC keyboard and observing the indicator.
interface, and check whether the signal cable pins are bent.
•Adjust the clock (CLOCK) and phase (PHASE) or press the hotkey
(AUTO).
•Check that the signal cable is properly connected. If the connector
is loose, please tighten the screw on the connector.
•Check whether the pins of the signal cable connector are damaged.
•Your computer is set in an inappropriate monitor mode. Please
restart your computer host.
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