Pioneer SK-700 Service Manual page 6

. REW Operation
1. Pressing the REW button starts the motor rotating, and
a t t h e s a m e t i m e t u r n s t h e R E W s o l e n o i d O N . T h i s
causes the REW lever to be pressed by arm (B) and lock-
e d b y t h e l o c k p l a t e ( s e e F i g . 4 ) .
2 . T h e R E W l e v e r m o v e s a r m ( J ) c o u p l e d t o t h e F R u n i t .
The FR unit thus is forced into contact with the reel
u n i t . T h r o u g h c o u p l i n g w i t h a r m s ( H ) a n d ( l ) , t h e R E W
lever also advances the head mount to the blank detec-
t i o n p o s i t i o n .
REC Operation
Pressing the REC button starts the motor rotating, and
a t t h e s a m e t i m e t u r n s t h e R E C s o l e n o i d O N . T h e R E C
l e v e r i s t h e n p r e s s e d b y a r m ( B ) ( s e e F i g . 4 ) . A t t h e s a m e
time, the REC lever presses the PLAY lever, and both
levers are engaged by the lockplate.
T h e R E C l e v e r , v i a t h e R E C a r m p l a c e s t h e R E C / P B
s w i t c h o n t h e A F a m p u n i t t o t h e R E C s i d e . A l l o t h e r
operations are the same as the PLAY mode.
o R E C P A U S E O p e r a t i o n
'l
. Pressing the REC PAUSE button in the STOP mode
e n t e r s t h e R E C O R D a n d P A U S E m o d e . P r e s s i n g i t f r o m
a R E C m o d e t u r n s t h e P A U S E s o l e n o i d O N . T h e f o l l o w -
i n g d e s c r i p t i o n w i l l a p p l y t o p r e s s i n g i t f r o m t h e R E C
m o d e .
2. The PAUSE lever is pressed by arm (B) and engaged by
t h e s l i d e r .
3 . T h e a c t i o n o f t h e P A U S E l e v e r , v i a a r m ( G ) r e l e a s e s t h e
TP unit from the reel unit, and breaks contact between
t h e p i n c h - r o l l e r a n d c a p s t a n s h a f t . s t o p p i n g t a p e t r a v e l .
T h e a u t o s t o p p i n ( F i g . 6 , a r m ( C ) ) i s l o c k e d i n a d e p r e s -
sed position, preventing Auto Stop from working.
STOP Operation
Pressing
the STOP button turns the STOP solenoid ON.
M e c h a n i s m o p e r a t i o n s a r e t h e s a m e a s a t i n i t i a l i z a t i o n .
A
R e e r u n i t , - g ( o ) B
u\
-
./.d
.V
R E W L e v e r -
r
A r m ( J ) r
+
H e o d P t o t e P i n
P i n c h R o t t e r
F R U n i t G e o r
- - - R e e L U n i t
A r m ( H )
F i s . 1 0
P L A Y L e v e r
F i g . 1 1
A r m ( G )
F i g . 1 2
a
1 .
2 .
R E C L e v e r
a
1
A r m ( l )
, T P U n i t
+
A u t o S t o o P i n - - -
P A U S E L e v e r