Kenwood DP-1100 B Service Manual page 144

D P - 1 1 0 0 B II
e) Lock lever ( 8 1 3 ) is m o v e d by the c a m section of c l a m p e r
gear ( 5 3 ) . C l a m p e r lever ( 8 0 6 ) begins t o l o w e r c o r r e s p o n ­
dingly. (Fig. M 9 )
Lock lever (813)
g) W i t h the disc is c l a m p e d , the p r o t r u s i o n of c l a m p e r gear
( 5 3 ) p u s h e s t h e c l o s e d tray d e t e c t i o n leaf s w i t c h a t t a c h e d
by s c r e w s t o c l a m p e r lever m o u n t i n g stand (51) so t h a t
the l o a d i n g m o t o r stops rotation (Fig. M 1 0 ) . T h e r e u p o n ,
the l o a d i n g o p e r a t i o n is c o m p l e t e . S u b s e q u e n t l y , the unit
i m p l e m e n t s t h e f o l l o w i n g o p e r a t i o n :
Closed tray detection
leaf switch (S001)
Fig. M 1 0 C l o s e d tray detection leaf s w i t c h
48
5. MECHANISM OPERATION
Clamper gear (53)
Cam section
Clamp lever (806)
Fig. M 9 T r a y operation
f) T h e c l a m p e r s e c t i o n (parts ( 3 2 ) , ( 3 5 ) , (36) a n d
m o u n t e d o n t h e t o p of c l a m p e r lever ( 8 0 6 ) also l o w e r s t o
c l a m p t h e disc. T h e f o r c e t o c l a m p the disc is o b t a i n e d
f r o m the a t t r a c t i o n p o w e r b e t w e e n c l a m p e r m a g n e t ( 3 6 )
a n d the disc t u r n t a b l e m a d e of i r o n .
Clamp rack (82)
Gear section
h) T h e m i c r o p r o c e s s o r c h e c k s w h e t h e r or n o t the disc is pre­
sent. If present, it rotates disc m o t o r (10) a n d carries the
p i c k u p t o the b e g i n n i n g of the first p r o g r a m after r e a d i n g
data T O C . T h e n , the disc m o t o r is s t o p p e d . ( W h e n the
play b u t t o n is pressed w i t h the tray o p e n , the disc m o t o r
does not stop a n d play m o d e is e n t e r e d as it is.)
If n o t , the disc m o t o r d o e s n o t rotate.
T h u s , the o p e r a t i o n w h e n t h e OPEN/CLOSE b u t t o n is pressed
f r o m the tray o p e n position is c o m p l e t e . H e r e u p o n , w h e n the
OPEN/CLOSE b u t t o n is pressed a g a i n , entirely reverse o p e r ­
ation f r o m step (g) t o (a) is p e r f o r m e d .
(2) During p o w e r O F F
W h e n t h e tray is t o be pulled o u t fully at p o w e r OFF,
s l o w l y rotate c l a m p e r gear ( 5 3 ) (Fig. M 9 ) m a n u a l l y in the
d i r e c t i o n reverse t o t h a t of the a r r o w until it s t o p s .
W h e n c l a m p e r gear ( 5 3 ) has been fully r o t a t e d , the tray
c o m e s o u t a b o u t 5 m m f r o m the panel s u r f a c e . After­
w a r d s , the tray c a n be pulled o u t f r o n t w a r d by h a n d .
A t this t i m e , w h e n t h e tray is pulled by an excessive
p o w e r , drive rack ( 8 0 ) m a y be d i s e n g a g e d f r o m gear C
( 6 7 ) or rather skips the teeth of the g u i d e rack. H o w e v e r ,
this case d o e s n o t m e a n a failure since the g u i d e rack
s w a y s a little a w a y f r o m t h e gear C t o p r o t e c t the rack
a n d gear f r o m being d a m a g e d .
In a d d i t i o n , w h e n the tray is pulled w i t h o u t c l a m p e r gear
( 5 3 ) fully r o t a t e d , the tray m a y c o m e o u t only h a l f w a y . In
this c a s e , return t h e tray t o the position in w h i c h it is
h o u s e d in.
Link (823)
(37))