Sony B Mechanizm Operation Manual page 41

Capstan motor (M902)
belt
Change gear
Relay gear
Fig. 4-15 Mechanism chassis assembly,
Tension regulator
bend
TG1
Drum (M901)
S reel
Gooseneck gear
T reel
Fig. 4-16. Mechanism chassis and LS chassis assembly
-41 -
Capstan motor (M902)
rol_r