Srp4004 and denon avr-391

Do a code search method. If there is a code, you can set it. If you wish to get more details, check this site. Pull up older posts there. http://electronicshelponline.blogspot.com/ Setup code list and setup proceedings to many popular brand remote controls are given. Two digit, three digit, four digit and five digit setup code list to different models remote controls are given. If you search the site in Timeslide option, which can be selected from the drop down list at the top left of the display window, it will be easy to locate the related post. You can also do a search by type in the brand name and model number to your device into its search box at the top right of display window. Check this site too. http://electrohelponline.blogspot.com/