Tape Retract Module (Inputs)

^ Circuit 40 (terminal A): provides B+ for VCP use.
^ Circuit 40 (terminal C): when high, enables power teed circuit to the VCP. When low, the TRM disables voltage to the VCP for several seconds, then restores power again to the VCP for a couple of seconds; this action allows the VCP to retract the VHS tape from the playback heads if the VCP was playing at the time the ignition switch was turned off.

Circuit 150 (terminal B): provides ground for TRM operation.