Acer CG437K User Manual - Page 37
Troubleshooting, HDMI/DP/USB Mode Optional
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Troubleshooting Before sending your LCD monitor for servicing, please check the troubleshooting list below to see if you can self-diagnose the problem. HDMI/DP/USB Mode (Optional) Problem LED status Remedy No picture visible Blue Using the OSD menu, adjust brightness and contrast to maximum or reset to their default setting. Off Check the power switch. Check if the AC power cord is properly connected to the monitor. Blue and Breathing Check if the video signal cable is properly connected at the back of monitor. Check if the computer system is switched on and in power saving/standby mode. OSD Locked: If OSD Lock is on, the LED status set Blue and Breathing. Note: Acer monitor is purposed for video and visual display of information obtained from electronic devices. Regulatory Compliance 217186 60950-1 27 CG437K User Guide English