Technics-SUV-670-Service-Manual电路原理图.pdf
《Technics-SUV-670-Service-Manual电路原理图.pdf》由会员分享,可在线阅读,更多相关《Technics-SUV-670-Service-Manual电路原理图.pdf(21页珍藏版)》请在收音机爱好者资料库上搜索。
1、S t e r e o I n t e g r a t e d A m p l i f i e r S P E C I F I C A T I O N S ( D I N 4 5 5 0 O ) 2 0 H z - 2 0 k H Z c o n t i n u o u s p o w e r o u t p u t b o t h c h a n n e l s d r i v e n 2 x 8 5 W ( 8 ) 1 k H Z c o n t i n u o u s p o w e r o u t p u t b o t h c h a n n e l s d r i v e n c
2、r H D : I / . ) 2 x 9 5 W ( 8 ) 2 x 1 3 5 W ( 4 ) 6 3 H z - 1 2 . 5 k H Z c o n t i n u o u s p o w e r o u t p u t b o t h c h a n n e l s d r i v e n ( 0 . 7 / . ) 2 x 8 5 W ( 8 ) 2 x 1 2 0 W ( 4 ) T o t a l h a r m o n i c d i s t o r t i o n ( P o w e r A m p D i r e c t i n p u t ) r a t e d p
3、o w e r a t 2 0 H z - 2 O k H Z 0 . 0 0 5 / . ( 8 ) r a t e d p o w e r a t I k H Z 0 . 0 0 0 9 / . ( 8 ) 0 . 0 0 2 / . ( 4 ) h a l f p o w e r a t 2 0 H z - 2 0 k H Z 0 . 0 0 5 / . ( 8 ) h a l f p o w e r a t I k H Z 0 . 0 0 0 9 / . ( 8 ) 0 . 0 0 2 / . ( 4 ) I n t e r m o d u l a t i o n d i s t o
4、r t i o n r a t e d p o w e r a t 5 0 H z : 7 k H z = 4 : 1 , S M P T E , 8 0 . 0 0 7 / . R e s i d u a l h u m a n d n o i s e 0 . 2 m V D a m p i n g f a c t o r 6 0 ( 8 ) , 3 0 ( 4 ) H e a d p h o n e s o u t p u t l e v e l a n d i m p e d a n c e 6 5 0 m V 1 3 3 0 L o a d i m p e d a n c e 4 -
5、1 6 A o r B A a n d B 8 - 1 6 I n p u t s e n s i t i v i t y a n d i m p e d a n c e P H O N O M M 2 . 5 m V / 4 7 k P H O N O M C 1 7 0 p V / 2 2 0 T U N E R , C D , A U X , T A P E 1 , T A P E 2 1 D A T 1 5 0 m V / 2 2 k P O W E R A M P D I R E C T 1 V / 1 8 k P h o n o m a x i m u m i n p u t v
6、o l t a g e ( l H F 6 6 , I k H z , R M S ) M M 1 7 0 m V M C 1 2 m V S l N r a t e d p o w e r ( 4 ) P H O N O M M 7 9 d B ( l H F 6 6 : 8 6 d B ) P H O N O M C 6 7 d B ( I H F 6 6 : 6 8 d B , S = 2 5 0 V ) T U N E R , C D , A U X , T A P E 1 , T A P E 2 1 D A T 9 7 d B ( l H F 6 6 : 1 0 0 d B ) P
7、O W E R A M P D I R E C T 1 0 6 d B ( l H F 6 6 : 1 1 5 d B ) - 2 6 d B p o w e r ( 4 ) P H O N O M M 7 7 d B P H O N O M C 6 7 d B T U N E R , C D , A U X , T A P E 1 , T A P E 2 1 D A T 8 4 d B O R D E R N O . A D 9 0 0 5 1 0 3 C 2 A m p n f i e r - c e t o * ( K ) B l a c k T y p e A r e a 5 0 m
8、W p o w e r ( 4 ) P H O N O M M 7 5 d B P H O N O M C 6 7 d B T U N E R , C D , A U X . T A P E 1 . T A P E 2 1 D A T 7 8 d B F r e q u e n c y r e s p o n s e P H O N O M M R I A A s t a n d a r d c u r v e : ! : 0 . 8 d B ( 3 0 H z - 1 5 k H z ) T U N E R . C D . A U X , T A P E 1 . T A P E 2 1 D
9、A T 3 H z - 1 0 0 k H Z ( + 0 , - 3 d B ) + 0 d B , - 0 . 2 d B ( 2 0 H z - 2 0 k H z ) P O W E R A M P D I R E C T 2 H z - 1 2 0 k H Z ( + 0 , - 3 d B ) + 0 d B , - 0 . 2 d B ( 2 0 H z - 2 0 k H z ) T o n e c o n t r o l s 5 0 H z , + 1 0 d B , - 1 0 d B B A S S 2 0 k H z , + 1 0 d B , - 1 0 d B T
10、R E B L E 5 0 H z , + 9 d B L o u d n e s s c o n t r o l ( v o l u m e a t - 3 0 d B ) O u t p u t v o l t a g e T A P E 1 . T A P E 2 1 D A T . R E C O U T 1 5 0 m V : 1 d B C h a n n e l b a l a n c e . A U X 2 5 O H z - 6 , 3 0 0 H z 5 0 d B C h a n n e l s e p a r a t i o n . A U X I k H Z I G
11、E N E R A L P o w e r c o n s u m p t i o n P o w e r s u p p l y F o r G r e a t B r i t a i n : F o r O t h e r s : D i m e n s i o n s ( W x H x D ) W e i g h t 6 4 0 W A C 5 0 H z / 6 0 H z , 2 4 0 V A C 5 0 H z / 6 0 H z , 2 2 0 V 4 3 0 x 1 5 8 x 3 7 0 m m ( 1 6 - 1 5 / 1 6 x 6 - 7 / 3 2 x 1 4
12、- 9 / 1 6 ) 1 2 . 3 k g ( 2 7 . 1 I b . ) N o t e s : 1 . S p e c i t i c a t i o n s a r e s u b j e c t t o c h a n g e w i t h o u t n o t i c e . 2 . W e i g h t a n d d i m e n s i o n s a r e a p p r o x i m a t e . 3 . T o t a l h a r m o n i c d i s t o r t i o n i s m e a s u r e d b y t h
13、e d i g i t a l s p e c t r u m a n a l y z e r . M a t S u s h i t a E l e c t r i c I n d u s t r i a l C o . L t d C e n t r a l P . O . B o x 2 8 8 , O s a k a 5 3 0 - 9 1 , J a p a n I C O N T E N T S B E F O R E R E P A I R A N D A D J U S T M E N T P R O T E C T I O N C I R C U I T R Y A C C
14、E S S O R Y C O N N E C T I O N S L O C A T I O N O F C O N T R O L S D I S A S S E M B L Y I N S T R U C T I O N S . . . . . M E A S U R E M E N T S A N D A D J U S T M E N T S S C H E M A T I C D I A G R A M . . . . _ P a g e 2 2 2 3 , 4 5 . 6 9 1 0 1 1 1 3 W I R I N G C O N N E C T I O N D I A G
15、R A M P R I N T E D C I R C U I T B O A R D S T E R M I N A L G U I D E O F I C S , T R A N S I S T O R S A N D D I O D E S B L O C K D I A G R A M R E P L A C E M E N T P A R T S L I S T E X P L O D E D V I E W P a g e 1 4 1 5 1 8 1 8 1 9 , 2 0 . 2 1 , 2 2 , 2 5 , 2 6 2 3 , 2 4 I B E F O R E R E P
16、A I R A N D A D J U S T M E N T ( 1 ) T u r n o f f t h e p o w e r s u p p l y . U s i n g a 1 0 , 1 0 W r e s i s t o r , s h o r t c i r c u i t b o t h e n d s o f p o w e r s u p p i y c a p a c i t o r s ( C 7 0 5 , C 7 0 6 ) i n o r d e r t o d i s c h a r g e t h e v o l t a g e . ( 2 ) B e
17、f o r e t u r n i n g o n t h e p o w e r s w i t c h c f t h e u n i t . A . C o n n e c t t h e v o l t a g e c o n t r o l l e r t o t h e p r i m a r y s i d e . B . C o n n e c t t h e A C a m p e r e m e t e r t o t h e p r i m a r y s i d e o r c o n n e c t t h e D C v o l t a g e m e t e r
18、t o t h e : t B c i r c u i t o f t h e s e c o n d a r y s i d e . C . T u r n t h e V R o f i C Q ( V R 4 5 1 a n d V R 4 5 2 ) t o m i n i m u m ( c o u n t e r c l o c k w i s e ) . D . A t t e r s e t t i n g t h e o u t p u t t o z e r o o f t h e v o l t a g e c o n t o i l e r , t u r n o n
19、t h e p o w e r s w i t c h o f t h e u n i t . A n d i n c r e a s e t h e o u t p u t o f v o l t a g e c o n t r o l l e r g r a d u a l l y . T h e n , c h e c k c a r e f u i l y w h e t h e r t h e c u r r e n t v a l u e c t p r i m a r y s i d e b e c o m e m o r e t h a n f o i l o w i n g
20、v a i u e o r w h e t h e r t h e D C v o l t a g e o f s e c o n d a r y s i d e i s i n c r e a s i n g s l o w l y . E . I f t h e v a l u e o t c u r r e n t i s i n c r e a s i n g u n u s u a l l y o r t h e D C v o l t a g e i s n o t i n c r e a s i n g , l o w e r t h e o u t p u t l e v e
21、l o f v o l t a g e c o n t o l l e r i m m e d i a t e l y . o T h e c u r r e n t v a l u e o f t h e p r i m a r y s i d e a t n o s i g n a l . ( C o n f i r m t h e p o w e r s u p p l y v o l t a g e o f e a c h a r e a a n d p r o v i d e d v o l t a g e o f t h e u n i t . ) I P R O T E C T
22、I O N C I R C U I T R Y T h e p r o t e c t i o n c i r c u i t r y o f t h e a m p l i f i e r m a y h a v e o p e r a t e d i f e i t h e r o f t h e f o l l o w i n g c o n d i t i o n s i s n o t i c e d : e N o s o u n d i s h e a r d w h e n t h e p o w e r i s t u r n e d o n . e S o u n d s
23、t o p s d u r i n g a p e r f o r m a n c e . T h e f u n c t i o n o f t h i s c i r c u i t r y i s t o p r e v e n t c i r c u i t r y d a m a g e i f , f o r e x a m p l e , t h e p o s i t i v e a n d n e g a t i v e s p e a k e r c o n n e c t i o n w i r e s a r e s h o r t e d , o r i f s p
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- Technics SUV 670 Service Manual 电路 原理图