Support

Pro-One AV Control System

If you experience any of the following difficulties when using the system, consult this guide to help you solve the problem.
No power. (Power Indicator is off)

1. Is the power cord firmly plugged into the power outlet?
2. One of the safety mechanisms may be operating. In this case, unplug the cord from the power outlet gently and then plug it in again.
3. If the problem persists, please contact our qualified maintenance staff



No picture.

1. Check that the system is connected securely.
2. The video cable is damaged. Replace a new one.
3. Make sure the system is connected to the video input connector of the projector.
4. Make sure the projector is turned on.
5. Make sure the infrared transmitter has a direct line-of-sight with the infrared receiver of the projector.



There is no sound or only a very low-level sound is heard.

1. Check that the speaker components are connected securely.
2. Make sure that you have selected the correct sound source on the system.
3. Make sure that you have not selected “Mute” from the XCLASS software interface.
4. The protective device on the system has been activated after a short circuit. Turn off the system to clear the short-circuit problem and turn on the power again.
5. The audio connecting cord is damaged. Replace a new one.



Severe hum or noise is heard.

1. Check that the speaker components are connected securely.
2. Check that the sound cords are away from a transformer or motor, and at least 3 meters away from a TV set or fluorescent light.
3. The plugs and jacks are dirty. Wipe them with a cloth slightly moistened with alcohol.



Severe high-pitch is heard.

1. Check that the serial (RS-232) cable and PRO-ONE are connected securely.
2. Check that the serial (RS-232) cable and “Teacher PC” are connected securely.



Cannot control AV equipments.

1. Check that the serial (RS-232) cable is connected to COM1 on Teacher PC.
2. Check that the serial port on Teacher PC is enabled in the BIOS setup menu.
3. Make sure you have programmed PRO-ONE to use the infrared code of that specific AV equipment. (please refer to the learning procedure on page 20)



Back to Top