model K1439AHT, K2166AHT, K2966AXT , pct. SDA5522 A004, SDA5555 A068 video STV2248H
Log -in service:
1. press the MENU button on the remote
2. three times to press on the remote RECALL
Output - RECALL.
model K2107AST1, KP2907AST 1 percent. VCT3831AC4
Log in - hidden button in the lower left corner. Use your TV to the "FACTORY SETTINGS" through the book. "0", P-, P +, V-, V +.