Sony DSR-300 Service Manual page 176

2. Mode
The TR arm assembly, coaster (S/T) assembly,
pinch arm assembly and TG-7 arm assembly
move and become in either threading end or
unthreading end state.
In the above state, they can stay in any position
unless the mode has been specified on the
following pages.
Threading end:
The TR arm assembly, coaster (S/T) assembly,
and pinch arm assembly, and TG-7 arm assembly
are positioned at the drum side as shown in the
figure.
Unthreading end:
The TR arm assembly, coaster (S/T) assembly,
pinch arm assembly, and TG-7 arm assembly are
positioned at the cassette side.
4-2
Threading End
TR arm assembly
Drum assembly
Coaster (S) assembly
Unthreading End
TR arm assembly Drum assembly
Coaster (S) assembly
Coaster (T) assembly
TG arm assembly
Pinch arm assembly
Coaster (T) assembly
TG arm assembly
Pinch arm assembly
DSR-300/P(E)/V1