DVR+(CM-7500) User Guide

Here is the link to the Quick Start Guide and User Guide for the DVR+(CM7500). 

https://support.channelmaster.com/hc/en-us/articles/200117849-DVR-CM7500-Quick-Start-Guide-and-User-Guide 

 CM-7500 CM7500 CM7500GB16 CM7500TB1 CM-7500GB16 CM-7500TB1