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D E C K
A A D J U S T M E N T
{ w i t h a u t o t a p e s e l e c t o r f u n c t i o n )
t " '
Taoe selector
Mode
I n p u t s i g n a l / t e s t t a p e
A d l u s t m e n t l o c a t i o n
M e a s u r i n g l æ a t i o n
A d j u s t m e n t v a l u e
R e m a r k s
N O R M
P L A Y
P l a y l o k H z - 2 0 d B p o r t i o n
o f S T D - 3 3 1 B t e s t t a p e
H e a d a z i m u t h a d l u s t '
m e n t s c r e w
( F i s . 1 1 - 3 )
T P , L
T P R
M a x i m u m p l a y b a c k
s i g n a l l e v e l
A p p l y " s c r e w -
l o c k " a t t e r c o m -
p l e t i n g a d j u s t m e n t
2 . P l a y b a c k E q u a l i z e r A d i u s t m e n t
. S e t V R 1 0 3 a n d V R 1 0 4 ( p l a y b a c k l e v e l a d l u s l m e n l
r o t h e p h y s i c a l c e n t e r P o s a t i o n s
Tape selectol
Mode
I n p u t s i g n a l / l e s t t a p e
A d l u s t m e n t l o c a t r o n
M e a s u r i n g l o c a t i o n
A d l u s t m e n t v a l u e
R e m a r k s
3. Playback Level A
P L A Y
P l a y t h e 3 1 s H z - 2 0 d 8 a n d
6 3 k H z - 2 0 d 8 p o r t i o n s o f
t h e S T D - 3 3 1 B t e s t t a p e .
v R 1 0 1 ( L )
v R 1 0 2 ( R )
T P . L
T P . R
T h e p l a v b a c k l e v e l a t 6 3 k H z m u s t b e
w i t h i n + 0 . 5 t 0 . 5 d 8 o f t h e l e v e l a t 3 1 5 H 2
{ s e e p l a v b a c k f r e q u e n c y r e s p o n s e i n
F i g . 1 1 4 . )
djustmcnt
.
A d i u s t p r e c i s e l y s i n c e t h i s a d j u s t m e n t s e l s t h e p l a y t
E c k O o l b y
l e v e l .
Tage selector
Mode
I n p u t s i g n a l / t e s t t a p e
A d i u s t m e n t l o c a t i o n
M e a s u r i n g l o c a t i o n
A d i u s t m e n t v a l u e
R e m a r k s
N O R M
P L A Y
P l a v t h e 3 1 s H z o d B p o r t i o n
o f t h e S T D - 3 3 1 B l e s t t a p e
v R 1 0 3 ( L )
v R 1 0 4 ( R )
T P L
T P R
-7 TdBv
( 4 1 2 m V )
. DECK B ADJUSTMENT
( w r l h a u t o t a o e s e l e c t o r f u n c t i o n )
1 . H e a d A z i m u t h A d j u s t m e n t
. S e l V R 1 0 5 a n d V R 1 0 6 ( p l a y b a c k l e v e l a d i u s t m e n t
t o M A X p o s i t i o n s ( l u r n t u l l y c l o c k w i s e )
Tape selector
Mode
I n p u t s i g n a l / t e s t t a p e
A d i u s t m e n t l o c a t i o n
M e a s u r i n g l o e t i o n
A d j u s l m e n t v a l u e
R e m a r k s
N O R M
P L A Y
P l a y 1 o k H z - 2 0 d 8 p o r t i o n o t
STD-331 B test tape
H e a d a z i m u t h a d j u s l
menr screw
( F i s . 1 1 - 3 )
T P L
T P . R
M a x i m u m p l a y -
b a c k s i g n a l l e v e l
A p p l y ' s c r e w -
l o c k
'
a f t e r c o m -
p l e t i n g a d j u s t m e n l
2 . P l a y b a c k L e v e l A d j u s t m e n t
.
A d i u s t p r e c i s e l y s i n c e t h i s a d i u s t m e n t s e t s t h e p l a y b a c k O o l b v l e v e l .
Tape selector
Mode
I n p u t s r g n a l / t e s t t a p e
A d i u s t m e n l l o c a t i o n
M e a s u r i n g l o æ l i o n
A d j u s t m e n l v a l u e
R e m a r k s
N O R M
P L A Y
P l a y t h e 3 1 5 H z 0 d B p r r t i o n
o f t h e S T D - 3 3 1 8 t e s t t a p e .
v R 1 0 5 { L )
v R 1 0 6 { R )
Ï P L
T P . R
- 7 . 7 d B v
( 4 1 2 m V )
3. Recording/Playback Frequency Response Adjustment
Tape selector
Mode
I n p u t s i g n a l / t e s t t a p e
A d i u s t m e n t l o c a t i o n
M e a s u r i n g l o c a t i o n
A d j u s t m e n t v a l u e
R e m a r k s
N O R M
R E C
A p p l y a 3 1 5 H 2 s i g n a l
t o t h e r e c o r d i n g t e r m i .
n a t s .
I n p u t s i g n a l l e v e l t o
be applied to the
r e c o r d i n g t e r m i n a l s .
T P L
T P R
- 2 7 T d B v
1 4 1 m V )
S e t t h e r æ o , d t n g
level control to
t h e p h y s i c a l c e n t e t
p o s i t i o n ( r e a r
panel )
N O R M
R E C l P L A Y
R e c o r d 3 1 S H z a n d 6 . 3 k H z
s i g n a l s o n t h e S T 0 - 6 0 8 4
t e s l l a p e , a n d t h e n p l a y -
b a c k s i g n a l s
2
v R 3 0 1 ( L )
v R 3 0 2 { R )
T P L
T P R
R e p e a t t h e r e c o r d i n g a n d p l a y b a c k
p r o c e s s e s a n d a d j u s t a c c o r d i n g l y u n t i l
t h e 6 3 k H z p l a y b a c k l e v e l i s w i r h i n
+ 0 5 t 0 5 d B o f t h e 3 1 s H z l e v e l
a
C h a n g e t h e t e s t t a p e a n d t h e O O L B Y N R s w i l c h p o s i t i o n a n d c h e c k t h a t r h e t r e q u e n c y r e s p o n s e z o n e i n d i c a t e d i n F i g . 1 1 - 5 - 7 i s s a t i s f i e d .
l f r h e r e s p o n s e c u r v e s a r e u n s a t i s f a c t o r y , t h e 6 . 3 k H z p l a y b a c k l e v e l c a n b e r e a d j u s t e d t o w i t h i n + O S + l f
O e o f t h e 3 1 5 H z l e v e l
4. Recording Level Adlustment
Tape seleclor
M o d e
I n p u t s i g n a l / t e s l t a p e
A d i u s t m e n t l o c a t i o n
M e a s u r i n g l o c a t i o n
A d i u s r m e n l v a l u e
R e m a r k s
N O R M
R E C
A p p l y a 3 1 5 H 2 s i g n a l
t o t h e r e c o r d i n g l e r m i -
n a t s
I
Input signal lelrel to
be applied to the
recording terminals
T P L
T P . R
-7 TdBv
( 4 1 2 m V )
Ser the recording
level control to
t h e p h y s a c a l c e n t e r
p o s i t i o n ( r e a r
panel )
N O R M
R E C / P L A Y
R e c o r d t h e 3 1 5 H z s i g n a l
onto the STD-608A tesr
t a p e , a n d t h e n p l a y t h e
s i g n a l b a c k .
v R 2 0 1 { L )
v R 2 0 2 ( R )
T P . L
T P . R
R e p e a t t h e r e c o r d i n g l h e p l a y b a c k
p r o c e s s e s , a n d a d j u s t a c c o r d i n g l y u n t i l
a p l a y b a c k l e v e l o f
7 T d B v ( 4 l 2 m V )
i s o b t a i n e d .
Ct02
R E C / P L A Y
R e c o r d t h e 3 1 s H z s i g n a l
onto the STD-603 tesl
t a p e , a n d t h e n p l a y t h e
signal back
J
T P . L
T P R
C h e c k t h a t t h e 3 1 5 H z p l a y b a c k l e v e l
i s - 7 T d B v i 1 s d B .
M E T A L
R E C / P L A Y
R e c o r d t h e 3 l 5 H z s i g n a l
o n t o t h e S T O € 1 0 r e s t
l a p e , a n d t h e n p l a y t h e
signal back.
4
T P L
T P R
C h æ k t h a r t h e 3 1 5 H 2 p l a y b a c k t e v e l
i s - 7 T d B v I 1 s d B .
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