Futaba 4VF - Manual (Page 11)

BEFORE USE
TRANSMITTER T4VF (REAR PANEL)
Connects the trainer cord when using the
trainer function.
(The trainer cord is sold separately. )
(See page 16 for a the trainer function op-
eration instructions.)
Trainer jack
Use when replacing the battery .
Slide the cover downward while pressing
the part marked "PUSH".
Battery cover
TRANSMITTER T4VF (SIDE PANEL)
Charging jack when the transmitter was
converted to nicd battery system.
(See page 17 for a description of the
charging method.)
Charging jack