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Normal operation
M S S W :
O N
Fi g . 4 -6
P M9 0 02 A ti m e cha rt ( W hen MS sw i tc h i s ON )
Direct change
Gear lever return spring (E) Flywheel
Cam gear (D)
Gear lever (F)
Stopper (G)
Operating
lever (
t
l-
4 . 4 M E C H A N I C A L O P E R A T I O N S
Playback Mode
The CT-730 makes use of the capstan torque
when shifting the head base during playback mode.
(Both the recording/playback and erase heads are
mounted on the head base).
o Stop Mode (see Fig.4-71
The head base shift mechanism during stop
mode is shown in Fig. 4-7. Operating lever (A)
presses down towards cam (C) due to operating
lever spring (B). With cam (C) combined with cam
gear (D), clockwise torque is applied to this cam
gear. Solenoid P is inactive, and the hook of gear
lever (F) is kept against stopper (G) of cam gear
(D) by the cam gear return spring (E), thereby
keeping cam gear (D) stationary. The flywheel is
belt-driven by the capstan motor,
and rotates
counterclockwise together with the capstan gear.
S T O P
R E W
F F
S T O P
P L A Y
S T O P
R E C
S T O P
R E C
F F
R E C
P A U S E
REVIE W
L I N E M U T E
( P i n 2 7 1
R E C M U T E
(
P i n 2 8 I
B r A S O S C
( P i n
? 2 ' )
P I N C H S O L ,
(
P i n
2 9 1
F F
S O L .
(
P i n
2 6 1
R E | V S O L .
(
P i n
2 5 )
M S
S O L .
(
P i n
2 3 )
P A U S E
P i n 2
Capstan gear
il#,"
l*
Soleno
Fi s. 4-7 ST OP operati on
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