I found these:
1004, 1006, 1008, 1019, 1062, 1068, 1069, 1075, 1076, 1077, 1088, 1130, 1131, 1132, 1133, 1134, 1183, 1196, 1219, 1235, 1271, 1273, 1291, 1370, 1377
here:
http://www.eliztech.com/remotes/rca-codes-4digit.php
The site also contains code installation instructions (mentioned near the top right of the page) in case you don't have your own.