Q: The power indicator doesn't light up and there's no response after power-on?
A: Check the power cord connection, ensure the socket has power supply, and verify that the voltage switch matches the external voltage.
Q: No image after switching?
A: Re-plug the signal cables, use a tool to test if there is a signal at the input/output ends, and check if the signal card is inserted tightly.
Q: The remote control doesn't work?
A: Replace the battery, ensure the IR sensor is not blocked, and use a mobile phone camera to test if the remote control emits light (if it emits light, it is normal).
Q: No response to RS232 control commands?
A: Ensure the cable is connected correctly (Device TX to Computer RX, Device RX to Computer TX, Device GND to Computer GND), and check the software parameters (Baud rate 9600, etc.).
Q: The front panel buttons have no response?
A: Send the command "/%Unlock;" via RS232 to unlock (it is successful if "System Unlock!" is fed back).
Q: There is ghosting in the image?
A: Replace with a high-quality cable, add a signal amplifier if the cable length exceeds 10 meters, and adjust the image settings of the display device.
Q: What is the warranty period?
A: 1 year from the date of delivery (purchase certificate is required). It covers material/process defects, but not man-made damage, expired products, etc.
Q: How to restore the factory default EDID?
A: Send the RS232 command "EDIDMInit" to reset the EDID of all input channels of the device.
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