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Switch to Playback Mode from Stop Mode
(see Fis. 3-7)
1. Solenoid P is activated ()
, and the hook of
gear lever (F) is released from stopper (G) O .
2. Operating lever (A) is pressed down onto cam
(C) by operating lever spring (B) O , ctun
gear (D) rotates @ .nd engages capstan gear
( H ) 0 .
S o l e n o i d P
\ e /
t ! ,
Fig.3-7 STOP -+ PLAY operation 1
Switch to Playback Mode from Stop Mode
(see Fig. 3€)
3. Cam geax (H) continues rotating due to
capstan gear (H) @ , attd cam (C) pushes
operating lever (A) up O .
4. After cam (C) passes the point of maximum
lift,
cam gear (D) disengages capstan gear
( H ) o .
( D )
Fig. 3-8
STOP -+ PLAY oPeration 2
Switch to Playback Mode from Stop Mode
(see Fig. 3'9)
5. Operating
lever spring (B) forces operating
lever
(A)
to
press against cam
(C) €)
,
thereby
tending to continue
the rotationary
motion
of cam gear (D), but since stopper
(G) catches the arm of gear lever (F)
(E
,
cam gezr (D)
stops rotating
and operating
lever
(A)
becomes
stationary
(playback
m o d e ) .
( B )
Fig. 3-9 STOP -+ PLAY oPeration 3
o Operation of Different Parts
As can be seen in Fig. 3-9, the head base drive
pin of operating lever (A) rises during playback
mode. This pin forces the head base up through
the action of the HB drive spring. The pinch
pressuer spring is also lifted at the same time,
iorcing the pinch roller into close contact with the
capstan. Furthermore, the brake plate is lifted to
releur" the reel brake. Pressure is also applied to
the idler arm, resulting in the TU idler transmitting
drive gear rotation to the TU reel base (the drive
gear being belt-driven by the capstan motor)'
(see Fig. 3-10).
Drive gear
TU reel base
F i g . 3 - 1 0 G e n e r a t i o n o f t a k e - u p t o r q u e
( c ) 1 A )
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