Pioneer SK-700 Service Manual page 28

5 . 1 3 F M I F F I N A L A D J U S T M E N T
o Connection Diagram
O s c i t l o s c o p c
l i M
n ; l
o To Adjust
1 . U s i n g t h e F M S S G , a p p l y a 9 8 M H z , 6 6 d B ( p V ) s i g n a t t o
t h e a n t e n n a t e r m i n a l s a n d t u n e t o 9 8 M H z .
2 . A d j u s t T 4 u n t i l a m a x i m u m r e a d i n g o n t h e m i l l i v o l t m e t e r
i s o b t a i n e d .
3 . A d j u s t T 5 f o r m i n i m u m d i s t o r t i o n . N o t e t h a t a d j u s t i n g
T 5 w i l l c h a n g e t h e m a x i m u m o u t p u t p o i n t , s o T 4 a n d
T5 will require 2 or 3 adjustments, alternating between
the two.
5 . 1 4 M U T I N G , C E N T E R A D J U S T M E N T
o Connection Diagram (Shown in Fig.44)
To Adjust
U s i n g t h e F M S S G , a p p l y a 9 8 M H z , t 0 d B ( p V ) ( a p p r o x . )
s i g n a l t o t h e a n t e n n a t e r m i n a l s a n d t u n e t o 9 8 M H z .
P l a c e t h e o s c i l l o s c o p e i n t h e D C 0 . 1 V l D l V r a n g e a n d
a d j u s t V R 3 u n t i l a n u l l i s o b t a i n e d .
D u m m y A n t e n n o
l - - - - - - - - - - ' : 3 0 0 Q
E X T
A n t e n n o
G
T U N E R P C . B O A R D
*o
R 6 8
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F i g . 4 4
o
1 .
2 .
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D i s t o r t i o n
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