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F O C U S C O N T R O L
T h e F O C U S c o n t r o l sh o u ld b e a d ju s te d u n til the fin e h o r
iz o n t a l lin e s t r u c t u r e o f the r a s t e r is c l e a r l y v i s i b l e o v e r
the p ic t u r e a r e a .
T h e c o n t r o l sh o u ld b e tu r n e d th r o u g h the
c o r r e c t
p o in t
s e v e r a l
t im e s s o that o p tim u m f o c u s is o b
ta in e d .
C E N T E R IN G
B y m e a n s o f a l e v e r e x te n d in g f r o m the f o c u s c o i l , th ru
the r e a r s c r e e n , the f o c u s c o i l c a n b e s h ifte d to c e n t e r the
p ic t u r e in its m a s k .
V E R T I C A L S IZ E A N D V E R T I C A L L IN E A R IT Y
A d ju s t the V E R T I C A L S IZ E c o n t r o l u n til the p ic t u r e f i l l s
the
m a s k
v e r t i c a l l y .
A d ju s t
c o n t r o l f o r b e s t o v e r a l l v e r t i c a l l i n e a r it y .
the V E R T I C A L S IZ E c o n t r o l w i l l r e q u ir e a r e a d ju s t m e n t o f
the V E R T I C A L L IN E A R IT Y c o n t r o l a n d p o s s i b l y o f the V E R
T I C A L
H O L D
c o n t r o l .
C e n t e r
le v e r on the fo c u s c o i l .
H O R IZ O N T A L S IZ E
A d ju s t
the
H O R IZ O N T A L
f i l l s
the
m a s k
h o r iz o n t a lly .
t e r in g l e v e r .
H O R IZ O N T A L O S C IL L A T O R A D J U S T M E N T
T h e
H O R IZ O N T A L
H O L D
r a n g e o f a p p r o x im a t e ly 180 d e g r e e s .
c r i t i c a l , a d ju s t as f o l l o w s :
1.
S h o r t out H O R IZ O N T A L O S C I L L A T O R c o i l L - 2 3 .
m a y b e d o n e w ith the c h a s s i s in the c a b in e t b y s h o r t in g p in s
3 & 8 o f the t e s t s o c k e t on c h a s s i s r e a r .
2.
W ith the c e n t e r in g l e v e r , m o v e the p ic t u r e to the le ft s o
that the r ig h t e d g e o f the r a s t e r c a n be s e e n .
H O R IZ O N T A L H O L D c o n t r o l to ab ou t the m id d le o f it s r a n g e
FIGURE 2.
SERVICE ADJUSTMENT CONTROLS
the
V E R T I C A L L IN E A R IT Y
A d ju s tm e n t o f
p i c t u r e w ith the c e n t e r in g
S IZ E l e v e r u n til the p i c t u r e
C e n t e r p ic t u r e w ith the c e n
c o n t r o l
s h o u ld h a v e a s y n c
If the c o n t r o l is t o o
T h is
A d ju s t the
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a n d n o te the w id th o f the b la n k in g p u ls e . (T h e b la n k in g p u ls e
a p p e a r s as a g r a y b a r at the r ig h t e d g e o f the p ic t u r e ) .
3.
R e m o v e s h o r t f r o m
H O R I Z O N T A L O S C I L L A T O R c o i l .
4 .
A d ju s t H O R IZ O N T A L O S C I L L A T O R c o i l u n til the s a m e
a m ou n t o f b la n k in g p u ls e c a n be s e e n as w a s n o te d in s te p 2.
V E R T I C A L H O L D A D J U S T M E N T
A d ju s t
the
V E R T I C A L
H O L D c o n t r o l f o r the c e n t e r o f
the v e r t i c a l s y n c l o c k - i n r a n g e .
B R IG H T N E S S
A d ju s t
the
B R IG H T N E S S
the C O N T R A S T c o n t r o l f o r the m o s t p le a s in g p ic t u r e . K e e p
the b r i l l i a n c e s lig h t ly b e lo w m a x im u m , h o w e v e r , in o r d e r
to p r o t e c t the f l u o r e s c e n t s c r e e n o f the p ic t u r e tube and to
p r e v e n t p o o r p ic t u r e d e ta il.
A D J U S T M E N T O F ION T R A P
U n d er
c o n d it io n s
o f r o u g h s h ip m e n t, it is p o s s i b l e fo r
the io n t r a p to b e c o m e m is a lig n e d . T o p r e v e n t s e r i o u s d a m
a g e t o the p ic t u r e tu b e , the f o llo w in g m e th o d o f a d ju s tm e n t
sh o u ld b e u s e d .
S ee F ig u r e 3.
T h e m a g n e t sh o u ld b e p la c e d on the n e c k o f the tube in
the d i r e c t i o n in d ic a t e d b y the m a r k in g on the m a g n e t ( u s u
a lly an a r r o w w h ic h p o in ts t o w a r d the p ic t u r e tube s c r e e n )
s o that the s t r o n g e r m a g n e t o f the d o u b le m a g n e t ty p e o r the
o n ly m a g n e t in the s in g le m a g n e t ty p e is p o s it io n e d o v e r the
in t e r n a l p o le p i e c e s w h ic h a r e m o u n te d on the gun s t r u c t u r e .
A d ju s t the B R IG H T N E S S c o n t r o l f o r lo w in t e n s it y and m o v e
the m a g n e t a s h o r t d is t a n c e f o r w a r d and b a c k w a r d at the
s a m e t im e r o ta tin g it to o b ta in the b r ig h t e s t r a s t e r .
o b ta in in g the b r ig h t e s t r a s t e r , the io n t r a p m a g n e t h a s to be
m o v e d m o r e than 1 /4 " f r o m the gun p o le p i e c e s the m a g n e t
i s p r o b a b ly w e a k and a n ew m a g n e t s h o u ld b e t r ie d .
c o r r e c t
f o r
a
s h a d o w e d r a s t e r w ith the io n t r a p m a g n e t if
c o n t r o l , in c o m b in a t io n w ith
If, in
N e v e r
3
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