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Pioneer GT-X5 Service Manual page 14

Stereo cassette tape deck

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9. Timer Start Operation
Timer recording, timer playback and off modes
are attained by changing the potential of IC401
pin 18 (TIMER) to * Vcc, ground, and open
respectively.
When a cassette tape with erasure prevention tabs
intact is loaded, and the POWER switch is switched
ON with the TIMER switch (S409) in the TIMER
REC position, recording mode is started about
four seconds after the power comes on. If the
erasure prevention tabs have been removed, how-
ever, the tape deck remains in stop mode.
If the POWER switch is switched ON with the
TIMER
switch in the TIMER PLAY position,
playback mode is started about four seconds
after the power line voltage is established. There is
no timer start operations when the TIMER switch
is left in the OFF position.
. T I M E R R E C
t\,tc
R E C
orr o
er-av t
flr
T I M E R
( s 4 0 9 )
C A S S E T T E H A L F
W I T H E . P T A B S
IS LOADED
Fig. 6 -14 Timer star t op e ra tio n
T I M E R
S T A N O B Y
6 . 3 M E C H A N I C A L O P E R A T I O N S
Playback Mode
The CT-X5 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.6-151
The head base shift mechanism during stop
mode is shown in Fig. 6-15. 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.
1 4
Gear lever return spring (E)
Flywheel
Operating
lever (A
Solenor=E"liOperating leveiS[ring (Bl Hebd base drive pin
Cam gear (D)
Gear lever (F)
Capstan gear
ilffi
F i g. 6-15
ST OP operati on

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