not to be rude, but this is the new build PC forum.
I did GOOGLE it for you. he is the user manual"
http://www.cablerant.com/resources/manuals/sa_tv/EXPLORER_3100.pdf?bcsi_scan_4C935F96CD10B4AF=0&bcsi_scan_filename=EXPLORER_3100.pdf
if you need more info try GOOGLE