(주)컴버스테크

a. The desktop PC installed separately inside the interactive podium must be turned on separately after turning on the main power of the interactive podium. Check whether the desktop PC inside the podium is powered on.

b. Check whether the HDMI cable connecting the interactive podium monitor and the controller is securely connected.

a. Gooseneck Microphone

• The gooseneck microphone uses separate AA batteries inside the microphone. If the batteries are depleted, the microphone may not produce sound. Replace the batteries in the gooseneck microphone.

• To replace the batteries: Turn the fastening bolt at the bottom of the gooseneck microphone to remove the microphone, then rotate the microphone body to access and replace the batteries.

b. Wireless Microphone

• The wireless microphone will only work when both the handheld microphone and the transmitter/receiver are powered on. If the microphone is turned on, check that the transmitter/receiver located inside the podium is also powered on.

Also, check that the main power of the interactive podium has not been turned off.

a. Howling (audio feedback) may occur if the microphone volume on the interactive podium is set to the maximum level. In this case, lower the microphone volume to use the system normally.

b. Make sure the microphone is not pointed toward the speakers. Howling may also occur if the microphone and speakers are positioned too close to each other.

1. Disconnect the power jack from the back of the controller unit, reconnect it, and reboot the controller.

2. If the communication cable (LAN or Serial) is disconnected, commands cannot be transmitted properly. Check that the cable is securely connected.

Press Win + P on the keyboard and select Duplicate mode.

If you intentionally want to display different content on each screen, select Extend mode instead.

Check whether the Playback Device in the bottom-right corner of Windows is correctly set to Realtek Audio or Controller Audio.

Also, make sure that the selection switch on the amplifier is set to PC mode.

This issue may occur due to interference between the cables inside the controller located within the interactive podium.

Please disconnect and reconnect the cables at the back of the controller, organize the cables properly, and then try again.

After turning on the interactive podium, you must press the Start Lecture button on the Keypad located at the bottom of the monitor to activate the connected devices.

Press the Start Lecture button and try again.

After the class is finished, press the End Lecture button to turn off the connected devices before turning off the main power of the interactive podium.

You can select the HDMI input source using the Keypad located at the bottom of the interactive podium monitor.

Select the appropriate HDMI input source, such as HDMI 1 or HDMI 2, to display the laptop screen.

a. Check whether the controller inside the interactive podium is powered on. If the controller still does not power on after reconnecting the power adapter attached to the controller, the controller may require inspection.

b. Try disconnecting and reconnecting the cable connected to the interactive podium keypad.

The Touchscreen on the Interactive Podium Monitor Does Not Work
The touch function of the interactive podium monitor communicates with the PC through a USB cable connected to the monitor. A dedicated touch driver must be installed for the touch function to work.

1. Check whether the USB cable on the back of the interactive podium monitor is properly connected to a USB port on the interactive podium's controller or desktop PC.

2. If there is no issue with the cable connection, visit the Combus Tech website (www.combus.co.kr) and install the dedicated touch driver using the following path. After installing the driver, restart the PC and try again.

→ Customer Support → Downloads → Programs → [Driver] Interactive Podium Monitor Touch Installation File

Q: I turned on the microphone, but there is no sound from the speaker. What should I check?

A: Wireless microphone issues are often caused by battery problems or a mismatch between the microphone and receiver channel settings. Please check the following two items first.

1. Check and Replace the Batteries
• Symptom: The microphone display is dim, or the microphone does not turn on.

• Solution: The batteries may be depleted. Replace them with LR6 high-power batteries for high-drain devices and try again.

• Tip: The batteries may slowly drain even when the microphone is not in use. If the microphone will not be used for an extended period, it is recommended to remove the batteries.

2. Check Whether the Channels (Frequencies) Match
• Symptom: The microphone turns on, but no sound is transmitted.

• Solution: Check whether the channel number displayed on the wireless microphone and the receiver is set to the same channel.

• How to Check: If the channel number on the receiver (the device connected to the amplifier) is different from the channel number shown on the microphone's LCD display, sound will not be transmitted.

※ Is There Still No Sound After Following These Steps?

If the issue persists after completing the basic checks above, a hardware inspection or frequency reconfiguration may be required. Please contact the Professional Service Center for further assistance.