048,028,019,000,027 are the codes to check with Apex brand TVs. If you wish to get more details, check
this site.
Pull up previous posts there. Setup code list and setup proceedings to
many popular brand remote controls are given.
Three digit, four digit, five digits and two-digit code list are there. Check the site with patience. Surely you'll get a solution to your problem. Search the site by 'Timeslide' option. It will make search easy. Or, type in the brand name to your device
into its search box, and press "Enter"