Marantz CINEMA 70s 7.2-Channel Network A/V Receiver - Manual (Page 67)

FLASHER IN jack
If a commercially available (sold separately) IR repeater is connected to the FLASHER IN jack of this unit, remote control operations can be performed
even if this unit is installed in a place where the remote control signal may not reach, such as in a cabinet.
GND
Signal
Monaural mini-plug cable
(Sold separately)
IR repeater IR receiver
Contents Connections Playback Settings Tips Appendix
67
Front panel Display Rear panel Remote Index