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(Automatic Frequency Control) 53 N/W Selection of bandwidth of audio IF band. (Narrow/Wide) 54 MUTE Mutes the audio. 55 FAV Displays FAV channel, mode. 56 DISPLAY Calls up receiver on-screen display data. 57 > Use these buttons to move back and forth in the VideoCipher H text files or to change program rating limits. 58 VIEW Use this button to check the program title, running time and other information about the program you are watching. 59 NEXT PRG This button allows you to see