- KB01539: How to Factory Reset the AT-UHD-CLSO-840 Matrix with the Front Panel
- KB01259 - Passing RS-232 commands through the AT-UHD-CLSO-840 to either an HDVS receiver or HDVS transmitter used on the HDBaseT input (transmitter) or HDBaseT output (receiver)
- KB01258 - Using AT-UHD-CLSO-840 with AT-HDVS-200-TX(-WP) for RS-232 Control
- KB01133 - Video playback issues when using displays of varying capabilities
- KB01006 - What audio connections does the AT-UHD-CLSO-840 support on the analog audio output?
- KB01007 - What HDCP version does the CLSO-840 support?
- KB01008 - How are the audio input ports on the CLSO-840 laid out?