Transport Mode Failure The RD379A(V) has four operating modes: - run - record - rewind - fast forward Any of these modes can fail for a variety of reasons. RUN mode is entered by pressing SW4 which activates RY6 RECORD mode is entered only when the deck is idle by pressing SW5 to activate record relay RY8. Fast Forward mode is entered by pressing SW3 in the FAST FORWARD position, energizing RY4 and RY5. Rewind mode is entered by pressing SW3 in the REWIND position, energizing RY2 and RY3.