Open your TV Aiwa remote control , press the button hidden in Aiwa tv remote controls
which were located in 8 key brought, after entry into service mode and press the sleep button on the remote control which is hidden key on the 2 button on the remote control. After entry into the factory setting will appear in Menu 1 tuning mode. Make your selection press up and down the program, the choice of 1 through nine and then
change the value press the volume up and down. Exit of factory mode off Aiwa TV-C2121 press power.