Motorola 17K1BE Service Manual Download Page 4

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FIGURE 3. PICTURE TUBE ADJUSTMENT LOCATIONS

s u c h c o r r e c t i o n r e s u l t s in d e c r e a s e d b r ig h t n e s s .

T h e io n

t r a p m a g n e t m u s t a lw a y s b e a d ju s t e d f o r m a x im u m b r i g h t

n e s s   and  i f   s h a d o w s   o c c u r   at  th is   s e t tin g   th e y   s h o u ld   b e
e lim in a t e d   b y  a d ju s t in g   th e  f o c u s   and  d e f l e c t i o n   c o i l s   a s  e x
p la in e d  u n d e r   " F o c u s   C o i l   and D e f l e c t i o n   Y o k e   A d ju s t m e n t 1'.

C A U T IO N : K e e p B R IG H T N E S S c o n t r o l at lo w in t e n s it y

u n til io n t r a p is p r o p e r l y s e t .

A m i r r o r p la c e d in fr o n t o f the r e c e i v e r w i l l a id in m a k

in g t h is a d ju s t m e n t.

D E F L E C T I O N Y O K E A D J U S T M E N T

If the d e f l e c t i o n y o k e s h if t s , the p ic t u r e w i l l b e t ilt e d .

T o c o r r e c t , l o o s e n the t h u m b s c r e w o n t o p o f the d e f l e c t i o n

y o k e and r o t a t e y o k e u n til the p ic t u r e is s t r a ig h t .

B e f o r e

tig h te n in g the t h u m b s c r e w , m a k e c e r t a i n that the d e f l e c t i o n

y o k e is a s fa r f o r w a r d a s p o s s i b l e .

If the y o k e s u p p o r t and the p ic t u r e tu be h a v e s h ifte d in

t r a n s it , o r i f f o r an y r e a s o n t h e s e p a r t s h a v e b e e n r e m o v e d
and r e p l a c e d , it is b e s t to d o a c o m p le t e j o b o f r e p o s i t i o n

in g . S ee F i g u r e 3.

T h e s t a r t in g p o in t is the p o s it io n o f the

p ic t u r e tu b e . It s h o u ld b e a d ju s t e d s o that the d is t a n c e f r o m
the c e n t e r o f the tu be f a c e to the f r o n t e d g e o f the c h a s s i s is
1 - 1 /1 6 " .

T h e c la m p on the fr o n t o f the tu b e s h o u ld th en b e

t ig h te n e d .

T h e p ic t u r e tu be r e a r s u p p o r t b r a c k e t p o s i t i o n

in g a d ju s t m e n t s c r e w s s h o u ld b e l o o s e e n o u g h to p e r m it

s lid in g th e b r a c k e t f o r w a r d u n til the r u b b e r c u s h io n fit s

sn u g ly up a g a in s t the f l a r e o f the tu b e . L o o s e n the y o k e a d

ju s t m e n t t h u m b s c r e w and p u sh th e y o k e up a g a in s t the f l a r e

o f the tu b e .

C A U T IO N : D o n o t u s e f o r c e in s lid in g the

b r a c k e t u p .

If to m u c h f o r c e is u s e d , a s t r a in w i l l b e

p la c e d   on   the  n e c k   o f  the  tu be  w h e n   th e  s u p p o r t   b r a c k e t
p o s it io n in g   a d ju s t m e n t   s c r e w s   a r e   t ig h t e n e d .  A l s o   the  y o k e
m a y   b e   f o r c e d   ou t  o f  p o s i t i o n .

T h e o p e n in g in the y o k e

s h o u ld be c o n c e n t r ic w ith the n e c k o f the tu b e .

F O C U S C O IL

T h e f o c u s c o i l s h o u ld b e p o s it io n e d s o that it is s p a c e d

l / 4 "   f r o m   the  d e f l e c t i o n   y o k e   w h en   p a r a l l e l   w ith   the  y o k e .
T h e   o p e n in g   in  the  f o c u s   c o i l   s h o u ld   b e  c o n c e n t r i c   w ith   the
n e c k   o f  the  tu b e .  T h e   s p a c in g   s h o u ld   b e   a d ju s t e d   b e f o r e   the

f r o n t o f the p ic t u r e tu be is c la m p e d d ow n b e c a u s e it is n e c e s

s a r y to r e m o v e the tu b e to c h a n g e the p o s i t i o n o f the f o c u s

c o i l .   Its  p o s it io n   is   c h a n g e d   b y   c h o i c e   o f   l o c a t io n   o f  the  c o i l
m o u n tin g   stu d s   in   the  s c a l l o p e d   h o l e s   o n   th e  to p   and  b o t t o m
o f  the  c o i l   m o u n tin g   b r a c k e t .

T h e o p e n in g in the f o c u s c o i l

c a n b e m a d e c o n c e n t r ic w ith the n e c k o f the tube b y l o o s e n

ing th e nu ts on the stu d s w h ic h s u p p o r t the f o c u s c o i l b r a c k

et and t u r n in g the stu d s w ith a s c r e w d r i v e r in the s l o t s p r o

v id e d .  T h e   s tu d s  a r e   e c c e n t r i c   and  m o v e   the  c o i l   b o th   v e r
t i c a l l y   and  h o r i z o n t a l l y .  T h e y   s h o u ld   b e   u s e d   o n ly   to   c e n t e r
th e  n e c k   o f  the  tu b e  in   the  o p e n in g   o f  th e  c o i l .

T E S T S O C K E T

A t e s t s o c k e t is p r o v id e d on the r e a r o f the c h a s s i s

w h ic h a llo w s a d ju s t m e n t o f the h o r i z o n t a l o s c i l l a t o r and

c h e c k in g o f s e n s it iv it y w ith o u t r e m o v in g c h a s s i s f r o m c a b i

n e t.

S ee F ig u r e 2 f o r s o c k e t c o n n e c t io n s .

ALIGNMENT

g e n e r a l

T h e c h a s s i s sh o u ld b e m o u n te d on a n g le ir o n b r a c k e t s

( M o t o r o l a P a r t N u m b e r 7X 700 210 ) s o that a ll c o n n e c t io n s

and a d ju s t m e n ts m a y b e m a d e e a s i l y .

S in c e the p o w e r c o r d c i r c u i t is b r o k e n b y the i n t e r l o c k