49.CLEAR key: Turns off the REHEARSAL and AUTO PUNCH IN/OUT functions
50.COUNTER RESET switch: This resets the COUNTER to "0000" so you can assign any point on the tape as a starting location. Pressing RTZ (#44) gets you back to that location.
51.REHEARSAL switch: Helps you rehearse a
52.AUTO PUNCH switch: Automates the punch- in/out sequence (Preroll,
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