Kenwood DP-1100 B Service Manual page 156

5-5 CLAMPER LEVER HEIGHT ADJUSTMENT
W h e n the disc m o t o r d o e s n o t rotate even if a disc is l o a d e d ,
or w h e n no data TOC is read even if t h e disc m o t o r rotates
(e.g. it rotates infinitely), or w h e n a f r i c t i o n s o u n d o c c u r s in
rotation of the disc m o t o r , the c l a m p e r lever m a y be in c o n ­
t a c t w i t h the c l a m p e r .
a) In this c a s e , a d j u s t by t u r n i n g the h e i g h t a d j u s t m e n t s c r e w
(Fig. M 3 9 - a ) so t h a t the ratio of c l e a r a n c e s A a n d B is A : B
= 2 : 3 w i t h the disc c l a m p e d as s h o w n in Fig. M 3 9 - b .
b) W h e n this p r o b l e m is n o t d e s o l v e d even by the m e t h o d
m e n t i o n e d a b o v e , t u r n the
c l e a r a n c e (C), w h i c h c a n be c h e c k e d t h r o u g h the n o t c h e d
section of the c l a m p e r , is a l m o s t the s a m e at several points
w h e n t u r n i n g .
Clearanace
Tray A (93)
Fig. M 4 1 C l a m p e r lever height adjustment w i t h tray open
5. MECHANISM OPERATION
c l a m p e r a n d see if the
Lock lever ass'y adjustment screw (101) with tray open
M 3 9 - c
M 3 9 - a M 3 9 - b
Fig. M 3 9 C l a m p e r lever height adjsutment
Case (100)
Clamper lever (806)
W h e n the c l e a r a n c e is smaller at right a n d left, c o r r e c t it by
p u s h i n g the c l a m p e r lever m a n u a l l y . (Fig. M 4 0 )
c) Lock lever a s s ' y ( 8 1 3 ) is also p r o v i d e d w i t h an a d j u s t m e n t
s c r e w w h i c h is used as in c l a m p e r lever h e i g h t a d j u s t m e n t
(Fig. M 3 9 - d ) w i t h tray o p e n .
This s c r e w is used in a d j u s t m e n t only w h e n t h e c l a m p e r
creates f r i c t i o n w i t h tray A in loading of disc or w h e n
s o u n d o c c u r s by t h e c l a m p e r striking t h e t o p c a s e .
A s s h o w n in Fig. M 4 1 , adjust this s c r e w so t h a t the
c l a m p e r is k e p t f r o m striking the t o p case also m e e t i n g the
a p p l i c a t i o n of tray A t o c l a m p e r c l e a r a n c e (d) >
M 3 9 - d
A : B = 2 : 3
Clamper lever (806)
Clearance (C)
Fig. M 4 0 C l a m p e r lever-plate clearance c h e c k
1 [ m m ] .