![]() If all connections are good swap out any mini display port to HDMI adapter- if present- with a known good working adapter.The first thing to try if you have no video on the screen- usually a blue screen with ‘searching for source’ message displayed, is to reboot the computer and check the HDMI cable connection.Depending on the installation, you will find either an adapter that connects to the HDMI cable or just an HDMI cable that has the capability to plug into the mini display port directly. The video signal is generated by the computer and output via the mini display/thunderbolt port on the back of the computer.Please find below some troubleshooting tips to work through before calling me for assistance. There have been several Help Desk tickets on video issues with the Epson Interactive Whiteboard projectors. Do not let cables drag on the floor, where possible ensure they are neatly secured.You will find a folder with the software, the resource pack and registration code you need for a full install. You can download the Promethean software from the Lincoln Center server.I suggest you work with me to establish whether sound is indeed possible, on a case by case basis. There has been confusion with the sound capabilities because there are some models of i Mac computers that will not transmit the sound from the mini display/thunderbolt port via HDMI. Sound through the HDMI cable to the projector is sometimes possible on certain models.There is also a fine manual calibration required after the initial calibration. I plan to make some video content available, at a future date, on how to use the menus to calibrate the board. Instructions were provided with the documentation provided. You need to use the remote menu to calibrate. Calibration is not done via any software driver.Every install provided both a 15ft USB cable and a mini display port to HDMI cable that plugs into the ports on the back of the computer. The installers ran a USB and an HDMI cable from the projector to a wall outlet with 2 ports, one for HDMI and the other for USB. The projectors are installed primarily by outside contractors. ![]()
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