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8. Troubleshooting Guide
When you experience issues with the CCTV LCD Monitor , before contacting your retailer where you made
your purchase, please check the following items. The most common issue is with the connection of AV
equipment or graphic card. We recommend that at the same time of troubleshooting, also refer to the AV
equipment or graphic card user manual. Please do not use a higher refresh rate than the maximum specified
by the CCTV LCD Monitor.
Issue
Troubleshooting
No image appears on the LCD
Monitor screen
Check if the computer or AV equipment power cord is securely connected
to the wall socket, or to the extension cord.
Check if the LCD
Monitor power switch is at the “on” position and the LED
on the front of LCD Monitor is in still green.
Check if the computer or AV equipment video (signal) cables are properly
secured.
Abnormal image
Check and make sure the computer or AV equipment video (signal) cables
are properly and securely connected to the sockets on back of the LCD
Monitor.
Abnormal image colors on the
screen
Check and make sure the LCD Monitor video (signal) cables are properly
and securely connected to the VGA, BNC, RCA sockets on back of the
computer.
Interference appearing on the
screen
Please refer to Chapter
“Function” to check if there is any improper
adjustment or setting.
Can only hear audio, but no
image on the screen
Please make sure both video inputs are properly connected (BNC /RCA/
/S-Video and VGA).
Can only see video, but no
audio
Please make sure both audio inputs are properly connected, the audio
input plugs are RCA and Ø 3.5mm audio line-in.
Check if the volume is at the lowest level.
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