OTARI MX-5050 Instruction And Maintenance Manual
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OTARI MX-5050 Instruction And Maintenance Manual

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See also: Operation & Maintenance Manual , Instruction Manual
0S3-035
-5050
-4
M X
M K I I I
PROFESSIONAL RECORDER
INSTRUCTION AND MAINTENANCE MANUAL

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  • Page 1 0S3-035 -5050 M K I I I PROFESSIONAL RECORDER INSTRUCTION AND MAINTENANCE MANUAL...
  • Page 2 CAUTION To prevent fire or shock hazard : Do not expose this appliance to rain or moisture. Do not remove back. No user-serviceable parts inside. Refer servicing to qualified service personnel.
  • Page 3 S A F E T Y I N S T R U C T I O N S 1. Read I n s t r u c t i o n s — A l l t h e s a f e t y and o p e r a t i n g i n s t r u c t i o n s s ho u l d be r ea d b e f o r e...
  • Page 4 -5050 M K III PROFESSIONAL TAPE RECORDER I N T R O D U C T I O N T h i s m an ua l p r o v i d e s d e s c r i p t i v e i n f o r m a t i o n , i n s t a l l a t i o n , o p e r a t i o n ,...
  • Page 5 J26604 T e l e x No. : TWX 9 1 0 - 3 7 6 - 4 8 9 0 OTARI E LECTRI C DEUTSCHLAND GmbH G i e l e n S t r a s s e 4040 Ne us s 1 F .
  • Page 6 * Addenda * (MX-5050 BQ-2,MK-3-4,MK-3-8) * * * * * * * * * External Capstan Speed Control * * * * * * * * * For a special a p p l i c a t i o n such as i n t e r f a c i n g with synch ron izer s or cont­...
  • Page 7 Table-2 Pin assignment of the "LOCATOR" connector ★ Descri pti on Note PIN No. ★ § GND,F GND of EXT. CONT EXT.CONT Capstan speed control ★ DC voltage ( range:+-l3V) CLOCK Tach pulses (TTL l o g i c convention) ★...

  • Page 8: Table Of Contents

    CONTENTS TABLE OF CONTENTS S e c t i o n T i t l e Page GENERAL INFORMATION Sy s te m D e s c r i p t i o n ..............1 — 1 — (1 ) Tape T r a n s p o r t ................
  • Page 9 CONTENTS ROUTINE MAINTENANCE AND CONVERSION INFORMATION R o u t i n e M a i n t e n a n c e ..............5-1 - ( 1 ) C l e a n i ng ..................5-1 5 - 1 - C 2 ) D e m a g n e t i z i n g ................
  • Page 10 CONTENTS 7 —6 —(7 ) R ec or d Head Azimuth A d j u s t m e n t ..........7-17 7 - 6 - ( 8 ) R ec o r d B i a s A d ju s t m e n t ............7 - 1 8 7 - 6 - ( 9 ) O v e r a l l...
  • Page 11 F i g u r e T i t l e Page 1 - 1 MX-5050 M K H - 4 M a jo r Components ..........1-3 2 - 1 D i m e n s i o n s ..................2 - 3 2 - 2 MIC ATT ....................
  • Page 12 CONTENTS F i g u r e T i t l e Page 7 - 1 0 I n p u t v . s . O u t p ut and D i s t o r t i o n ..........

  • Page 13: General Information

    S E C T I O N S E C T I O N 1 G E N E R A L I N F O R M A T I O N The M X -5 050 MK 1 - 4 R e c o r d e r i s a p r o f e s s i o n a l q u a l i t y t w o - s p e e d...

  • Page 14: Tape T R A N S P O R T

    S E C T I O N 1 - 1 - ( 1 ) T A P E T R A N S P O R T Al I c o m p o n e n t s o f t h e t a p e t r a n s p o r t s y s t e m a r e m o u n t e d on a r i g i d a lu mi n iu m b as e f o r s t a b i l i t y .
  • Page 15 * Addenda * (MX-5050 BQ-2.MK-3-4,MK-3-8) * * * * * * * * * External Capstan Speed Control * * * * * * * * * For a spe cial a p p l i c a t i o n such as i n t e r f a c i n g with sy nc h ro n iz er s or cont­...
  • Page 16 Table-2 Pin assignment of the "LOCATOR" connector ★ ★ PIN No. D e s c r i p t i o n Note ★ ★ ★ GND of EXT. CONT GND.F ★ ★ ★ Capstan speed control EXT.CONT ★ DC vo ltage (range:+-13V) ★...
  • Page 17 * * * * * * * * * * TAPE SPEED ADJUSTMENT * * * * * * * * * * # Replace the SECTION 6 "TAPE SPEED ADJUSTMENT" of the manual. The tape speed can be adjusted by turning the speed adjustment pots on the Capstan servo control P.C.B.
  • Page 18 Location of the pots and switches on the P.C.B. CAPSTAN SERVO CCNTRGL P.C .30A R 0 M : 7 1/2 i p s H : I 5 i p s SW-2 VR-1 SW-3 Issued by OTARI ELECTRIC ENGINEERING DIVISION on 01/24/1982 ( V e r . 1 .0)
  • Page 19 S E C T I O N F i g u r e 1-1 MX-5050 M K n - 4 M a j o r Components...

  • Page 20: Re C O R D / Re P R O D U C E E L E C T R O N I C S

    S E C T I O N 1-1 - ( 2 ) RE C O R D / RE P R O D U C E E L E C T R O N I C S FEATURES (1 ) T he R EC OR D/ RE P RODUC E a m p l i f i e r u n i t i n t e r c o n n e c t e d t o t n e t r a n s p o r t u n i t by j u s t t h e c o n n e c t o r s .

  • Page 21: S T A N D A R D A C C E S S O R I E S

    S E C T I O N 1 - 2 S T A N D A R D A C C E S S O R I E S The MX -5 0 50 MK.3T-4 i s s u p p l i e d wi +h The s t a n d a r d a c c e s s o r i e s l i s t e d in T a b l e 1 -1 .

  • Page 22: S P E C I F I C A T I O N S

    S E C T I O N 1 - 4 S P E C I F I C A T I O N S The s p e c i f i c a t i o n s o f t h e M X - 5 0 5 0 M K m - 4 a r e as l i s t e d T a b l e 1 - 3 .
  • Page 23 S E C T I O N O p e r a t i n g E n v i r o n m e n t : 40° t o 104°F ( 5 ° t o 40°C) 20% t o 8 0 * R e l a t i v e H u m i d i t y S t o r a g e E n v i r o n m e n t : - 5 °...
  • Page 24 S E C T I O N O u t p u t s : L I N E : +4 or - 8 dBm s w i t c h a b l e , u n b a l a n c e d . Load impedance: more t h a n 600 ohm.
  • Page 25 M a i n s c h e m a t i c d i a g r a m s a r e a t t a c h e d t o t h e l a s t p a r t o f t h i s manual. OTARI r e s e r v e s t h e...

  • Page 26: Installation

    S E C T I O N S E C T I O N 2 I N S T A L L A T I O N T h i s s e c t i o n o f t h e m a nu a l p r o v i d e s i n f o r m a t i o n on u n p a c k i n g and i n s p e c t i o n ,...

  • Page 27: L O C A T I O N And E N V I R O N M E N T

    S E C T I O N 2 2 - 2 L O C A T I O N AND E N V I R O N M E N T T he a r e a c h o s e n f o r o p e r a t i o n s h o u l d be a d e q u a t e l y v e n t i l a t e d and d u s t f r e e .

  • Page 28: D I M E N S I O N S

    D I M E N S I O N S D i m e n s i o n s o f th e MX-5050 M K n r -4 a r e shown in F i g u r e 2 - 1 .

  • Page 29: S T A N D A R D S W I T C H P O S I T I O N On Shipment

    S E C T I O N 2 - 4 S T A N D A R D S W I T C H P O S I T I O N ON S H I P M E N T L I N E INPUT L E V E L OUTPUT L E V E L...
  • Page 30 S E C T I O N 2 2 - 5 POWER AND S I G N A L C O N N E C T I O N P o w e r , a u x i l i a r y g r o u n d , r e m o t e , l i n e i np u+/ou+pu+ c o n n e c t i o n s...
  • Page 31 S E C T I O N 2 1 ndex Name F u n c t i on REMOTE CONTROL U s e d t o c o n n e c t o p t i o n a l r e m o t e c o n n e c t o r c o n t r o l...

  • Page 32: Power And S I G N A L C O N N E C T I O N

    S E C T I O N REPRODUCE HEAD Male MR- type c o n n e c t o r f o r r e p r o d u c e c o n n e c t o r s i g n a Connected to t he R e p r od u ce Head C a b l e [ Z A - 6 2 X ] .

  • Page 33: S I G N A L C O N N E C T I O N S

    S E C T I O N 2 2 - 5 - ( 2 ) S I G N A L C O N N E C T I O N S L i n e i n p u t ( f e m a l e ) and 1 i ne o u t p u t ( m a l e ) c o n n e c t o r s a r e X L R - t y p e c o n n e c t o r s .
  • Page 34 S E C T I O N u n b a l a n c e d o u t p u t s u s i n g s i n g l e - c o n d u c t o r s h i e l d e d c a b l e , w i re t he female X L R - t y p e c o n n e c t o r as f o l l o w s :...

  • Page 35: Operation

    S E C T I O N S E C T I O N 3 O P E R A T I O N T h i s s e c t i o n o f t h e m a n u a l p r o v i d e s a d e s c r i p t i o n o f a l I o p e r a t i n g c o n t r o l s and i n d i c a t o r s and t h e i r use in th e s y s t e m , and s t e p - b y - s t e p...
  • Page 36 S E C T I O N I ndex Name F u n c t i on POWER p u s h b u t t o n t h e d e p r e s s e d p o s i t i o n , p o w e r sw i t c h...
  • Page 37 S E C T I O N 3 I ndex Name F u n c t i on RECORD pushbutton U s e d c o n j u n c t i o n w i t h t h e P L A Y sw i tch p u s h b u t t o n...
  • Page 38 S E C T I O N 3 I ndex Name F u n c t i on RECORD i n d i c a t o r I n d i c a t e s t h e RECORD mode. ( r e d ) T r a n s p o r t Amp 1i f i e r...
  • Page 39 S E C T I O N 3 1 ndex Name F u n c t i o n STOP p u s h b u t t o n Used t o s t o p t h e t a pe m o t i o n , c a n c e l l i n g s w i t c h (momentary) the e x i s t i n g mode o f o p e r a t i o n .
  • Page 40 S E C T I O N 3 I ndex Name F u n c t ion CUE l e v e r U s e d t o c a r r y o u t a u d i o m o n i t o r i n g t he F.FWD and REWIND modes.
  • Page 41 S E C T I O N 3 1 ndex F u n c t i on Name Ta ke s up t ape. Takeup r e e l C o r r e c t l y t r a n s m i t s t h e t a p e w i t h t h e P i nch r o l I e r c a p s t a n .
  • Page 42 S E C T I O N 1 ndex Name F u n c t i o n M I C / L I N E INPUT U s e d c o n t r o l r e c o r d i n g l e v e l s l e v el c o n t r o l s m i c r o p h o n e and...
  • Page 43 S E C T I O N 3 1 ndex Name F u nc t ion TEST O S C 111a t o r Used t o s e l e c t th e L I N E INPUT s i g n a l . sw i t ch The l i n e p o s i t i o n s h o u l d be n o r m a l l y s e t t o g e t t h e a u d i o s i g n a l...
  • Page 44 S E C T I O N 3 I ndex Name F u n c t i o n E n t e r i n g t h e RECORD mode, t h e m o n i t o r p rog ra m on both SEL/REP and READY ( I n d e x N o .
  • Page 45 S E C T I O N 3 1 ndex N o . Name F u nc t i on PHONES j a c k S t a n d a r d t w o - c o n d u c t o r phone j a c k a v a i l ­ a b l e f o r b o t h...
  • Page 46 S E C T I O N 3 P l a c e t h e NAB hub t a p e r e e l o n + o t h e r e e l t a b l e s o t h a t t h e t h r e e s l o t s o f t h e t a p e r e e l c o r r e s p o n d t o the t h r e e n o t c h e s of...
  • Page 47 S E C T I O N T h r e a d t h e t a p e a s s h o w n in F i g u r e 3 - 2 and p l a c e t h e end o f the tape in t h e s l o t o f t h e empty r e e l , and r o t a t e t h e r e e l...

  • Page 48: Normal R E C O R D I N

    S E C T I O N 3 3 - 2 - ( 3 ) R E P R O D U C T I O N To r e p r o a u c e , p roceed a s f o l l o w s : P e r f o r m a l l s t e p s in t h e p r e - o p e r a t i n g p r o c e d u r e .
  • Page 49 S E C T I O N A d j u s t t h e L I N E a n d / o r M I C I NPUT l e v e l c o n t r o l ( s ) o f r e l a t e d c h a n n e l ( s ) s e l e c t e d t o r e c o r d s o t h a t t h e VU m e t e r ( s ) o f t h a t c h a n n e l ( s )
  • Page 50 S E C T I O N 3 3 - 2 - C 5 ) R E C O R D I N G WI TH S E L E C T I V E R E P R O D U C T I O N The s e l e c t i v e r e p r o d u c t i o n f u n c t i o n c a u s e s t he r e p r o d u c e d p r og ra m t o be m o n i t o r e d f r o m t h e r e c o r d hea d r a t h e r t h a n f r o m t h e r e p r o d u c e...

  • Page 51: F A S T W In D I N

    S E C T I O N 3 ( 9 ) When r e c o r d i n g i s c o m p l e t e , d e p r e s s t he STOP p u s h b u t t o n t o s t o p t a p e m o t i o n and d e a c t i v a t e t h e RECORD mode, o r d e p r e s s t h e PLAY p u s h b u t t o n f o r punch o u t o p e r a t i o n .

  • Page 52: E D I T I N G And S P L I C I N G Tape

    S E C T I O N 3 3 - 2 - 1 7 ) E D I T I N G AND S P L I C I N G T A P E F o r e d i t i n g and s p l i c i n g o p e r a t i o n s , t h e CUE l e v e r c a n be u s e d f a s t - w i n d i n g modes t o q u i c k l y l o c a t e t h e d e s i r e d program m a t e r i a l .

  • Page 53: General Information Of Maintenance

    S E C T I O N 4 S E C T I O N 4 G E N E R A L I N F O R M A T I O N O F M A I N T E N A N C E 4 - 1 T E S T AND M A I N T E N A N C E E Q U I P M E N T R E Q U I R E M E N T S...
  • Page 54 S E C T I O N 4 Equipment Type Used For Su ggested Model P e r io d Audio o s c l 11ator Hewlett Packard O v e r a l 1 frequency 150 ho u r s or 200CD o r 204C re sp o n s e and 1 month...

  • Page 55: Routine Maintenance And Conversion Information

    S E C T I O N 5 S E C T I O N 5 R O U T I N E M A I N T E N A N C E A N D C O N V E R S I O N I N F O R M A T I O N 5- 1 R O U T I N E M A I N T E N A N C E...
  • Page 56 S E C T I O N CAUTION DO NOT USE A HEAD CLEANER ON THE CAPSTAN PINCH ROLLER, S IN CE TH IS WILL CAUSE DAMAGE AND TAPE S L I P . 2 . BEFORE REMOVING THE REAR COVER, THE PLUG MUST BE DISCONNECTED FROM THE POWER SUPPLY TO AVOID AN ELECTRIC SHOCK.

  • Page 57: D E M A G N E T I Z I N G

    S E C T I O N 5 - 1 - ( 2 ) D E M A G N E T I Z I N G Th e h e a d s and t a p e g u i d i n g c o m p o n e n t s in t h e t a p e p a t h s h o u l d be d ema gn eti zed a f t e r e v e r y e i g h t h o u r s o f o p e r a t i o n .

  • Page 58: L U B R Ic A T Io N

    S E C T I O N F i g u r e 5 - 2 D e m a g n e t i z i n g 5 - 1 - ( 3 ) L U B R I C A T I O N The o n l y c o m p o n e n t s r e q u i r i n g l u b r i c a t i o n a r e t h e c a p s t a n s l e e v e...
  • Page 59 S E C T I O N 1 . R e m o v e t h e p i n c h r o l l e r c a p by r e m o v i n g t h e s c r e w on i t . 2.

  • Page 60: Tape Replacement

    S E C T I O N 5 5 - 2 T A P E R E P L A C E M E N T The M X - 5 0 5 0 M K i r - 4 s e t a t t h e f a c t o r y f o r S c o t c h # 2 2 6 R e c o r d i n g T a p e .

  • Page 61: L I N Evo L T A G E C O N V E R S I O N

    S E C T I O N 5 5 - 4 L I N E VO L T A G E C O N V E R S I O N T h e l i n e v o l t a g e c o n v e r t e d by r e s o l d e r i n g t h e...

  • Page 62: F U S E Replacement

    S E C T I O N F i g u r e 5 - 5 A c c e s s f o r L i n e V o l t a g e C o n v e r s i o n 5 - 5 F U S E R E P L A C E M E N T a f u s e...

  • Page 63: Main Power Fuse L O C A T I O N

    S E C T I O N CAUTION FOR CONTINUED PROTECTION AGAINST F IR E HAZARD, REPLACE ONLY WITH THE SAME TYPE OF FUSE. BEFORE REPLACING THE FUSE, REMOVE THE POWER CORD FROM THE POWER SOURCE. I n f o r m a t i o n c o n c e r n i n g the s even f u s e s can be found in T a b l e 5 - 2 . F or t h e main power f u s e ( F S 8 0 1 ) , p roceed a s f o l l o w s : P l a c e t h e equipment on i t s s i d e .
  • Page 64 T a b l e 5 - 2 F u s e I n f o r m a t i o n Referenc e Rat i ng Otari part number Curren t v o lt a g e s i z e ( i nch,mm)

  • Page 65: R O T A T I N G C O N T R O L P . C . B

    S E C T I O N F i g u r e 5 - 8 R o t a t i n g C o n t r o l P . C . B . 5 - 1 1...

  • Page 66: Tape Transport Maintenance

    S E C T I O N 6 S E C T I O N 6 T A P E T R A N S P O R T M A I N T E N A N C E T a p e t r a n s p o r t m a i n t e n a n c e i n c l u d e s p r o c e d u r e s f o r a d j u s t i n g t h e s u p p l y and ta ke up r e e l...

  • Page 67: Brake Adjustment

    S E C T I O N 6 6 - 2 BRAKE ADJUSTMENT Th e b r a k e s y s t e m on e a c h r e e l s t o p s t h e r o t a t i o n o f t h e r e e l when power i s removed.
  • Page 68 S E C T I O N 6 5. Wind t h e c or d o r t w i n e in a c l o c k w i s e d i r e c t i o n on t o t h e s u p p l y ree I .

  • Page 69: B R A K E Measurement

    S E C T I O N F i g u r e 6 - 2 B r a k e Measurement TWO C R O S S - R E C E S S E D SCREWS BRAKE SPRING B R A K E A S S E M B L Y MO U N T I NG SCREW...

  • Page 70: Capstan P I N C H Roll Er P R E S S U R E Adj Us Tment

    S E C T I O N 6 - 3 CAPSTAN P I N C H ROLL ER P R E S S U R E ADJ US TMENT The c a p s t a n p i n c h r o l l e r ' s p r e s s u r e a g a i n s t t h e c a p s t a n i s d e t e r m i n e d by t he p i n c h r o l l e r s o l e n o i d s p r i n g .
  • Page 71 S E C T I O N 6 . I f a p r o p e r s c a l e r e a d i n g wa s n o t o b t a i n e d in s t e p 5, l o o s e n t he l o c k n u t and a d j u s t t he p r e s s u r e nut as shown in F i g u r e 6 - 5 .

  • Page 72: Tape S P E E D Adjustment

    S E C T I O N 6 - 4 TAPE S P E E D ADJUSTMENT The t a p e speed can o n l y be a d j u s t e d on t h e dc s e r v o c a p s t a n motor, by u s i n g t h e speed a d j u s t m e n t c o n t r o l s on t h e S e r v o C o n t r o l P .

  • Page 73: C O N T R O L T I M I N G C H A R T

    S E C T I O N T A P E T R A N S P O R T T I M I N G CH ART 6 - 5 CONTROL T IM IN G C H ART >_ ■...

  • Page 74: E C O R D I N G P R O C E S S T I M I N G C H A R T

    S E C T I O N 6 - 6 R E C O R D I N G P R O C E S S T I M I N G CH ART RECORDING REC. COMMAND MONITOR INPUT MONITOR SEL/REP REC.

  • Page 75: Performance Testi Ng And Electronic Alignment

    S E C T I O N S E C T I O N 7 P E R F O R M A N C E T E S T I N G A N D E L E C T R O N I C A L I G N M E N T P e r f o r m a n c e t e s t i n g s h o u l d be made a t r e g u l a r l y s c h e d u l e d...

  • Page 76: T E S T C O N D I T I O N S

    S E C T I O N 7 3. N e v e r r u n t h e t e s t t a p e s on s p e e d s o t h e r t h a n a n o r m a l p l a y r u n ( n e v e r use t h e r ewi nd o r f a s t f or wa r d mode).

  • Page 77: P E R F O R M A N C E T E S T S

    S E C T I O N 7 7 - 4 P E R F O R M A N C E T E S T S B e f o r e p e r f o r m a n c e t e s t i n g , l i n e in p ut l evel c h eck,...
  • Page 78 S E C T I O N 7 Th e s i g n a I - t o - n o i s e t e s t r a t i o d e p e n d s on r e p r o d u c e e q u a l i z a t i o n , b i a s c a l i b r a t i o n , and r e c o r d e q u a l i z a t i o n .

  • Page 79: D I S T O R T I O N T E S T

    S E C T I O N 7 1. L I N E OUTPUT LEVEL s w i t c h p o s i t i o n . 2. RECORD B I A S a d j u s t m e n t . 3.

  • Page 80: C R O S S T A L K T E S T

    S E C T I O N 7 Change t h e wave a n a l y z e r t u n i n g c o n t r o l t o 3000 Hz and mea s ur e t h e t h i r d h ar mo n ic c o n t e n t .

  • Page 81: E R A S U R E T E S T

    S E C T I O N 7 - 4 - 1 4 ) E R A S U R E T E S T I t i s i m p o r t a n t t h a t b l a n k b u l k - e r a s e d t a p e be u s e d in t h e e r a s u r e t e s t .

  • Page 82: Tape Speed Measurement

    S E C T I O N 7 7 - 4 - ( 5 ) T A P E S P E E D M E A S U R E M E N T A f l u t t e r t e s t t a p e i s used f o r m e a s u r i n g t a pe speed. S i n c e t a pe t e n s i o n a f f e c t s t a p e speed, i m p o r t a n t...

  • Page 83: F L U T T E R And Wow T E S T

    S E C T I O N 7 s p e e d a c c u r a c y n o t w i t h i n + 0 . 2 $ , c h e c k and a d j u s t t h e f o l l o w i n g iterns.
  • Page 84 S E C T I O N 7 2. Conn ect a f l u t t e r met er t o t h e L I NE OUT o f an i n n e r t r a c k channel and p r e s s "...
  • Page 85 S E C T I O N 7 T a b l e 7 - 2 F l u t t e r and Wow S p e c i f i c a t i o n Tape speed FI u t t e r and wow 15 i p s 0 .

  • Page 86: E L E C T R O N I C A L I G N M E N

    S E C T I O N F i g u r e 7 - 3 E l e c t r o n i c s A c c e s s 7 - 6 E L E C T R O N I C A L I G N M E N T t he p r e v i o u s...

  • Page 87: R Ep Rod Uce Head Azimuth A D J U S T M E N T

    S E C T I O N 7 OB" F i g u r e 7 - 4 R e p ro d uc e Sy ste m B l o c k and L e ve l Diagr am 7 - 6 - ( 2 ) R E P R O D U C E H EAD A Z I M U T H...
  • Page 88 S E C T I O N 7 CAUTION DO NOT ADJUST ANY OTHER SCREW EXCEPT THE AZIMUTH ADJUSTMENT SCREW (LABELED " A 3 " I N FIGURE 7 - 5 ) . 4. T he n , r e p r o d u c e t h e f i n e a z i m u t h a d j u s t m e n t s i g n a l ( 1 6 KHz a t 7 1/2 i ps ) and a d j u s t t h e a z i m u t h s c r ew "...

  • Page 89: F Req Ue Ncy R E S P O Ns

    S E C T I O N 7 7 - 6 - C 3 ) F R E Q U E N C Y R E S P O N S E S i n c e t h e r e p r o d u c e e q u a l i z e r c i r c u i t has h i g h f r e q u e n c y independent...

  • Page 90: L O C A T I O N O F R E C O R D / Re P R Od U C E E L E C T R O N I C S

    S E C T I O N T a b l e 7 - 3 E q u a l i z e r Time C o n s t a n t s & F l u x i v i t y F l u x i v i t y E q u a 1 i z at ion Time C o n s t a n t s...

  • Page 91: Srl ( Rep Ro L E V E L ) Adjustment

    S E C T I O N 7 7 - 6 - ( 4 ) ( REP RO L E V E L ) ADJUSTMENT 1. C onn ect th e ac v o l t m e t e r t o t h e LI NE OUTPUT c o n n e c t o r . 2.
  • Page 92 S E C T I O N 4. S e t t h e a u d i o o s c i l l a t o r f r e q u e n c y t o 1 KHz. 5.
  • Page 93 S E C T I O N B I A S ADJUSTMENT AT 10 KHz 2. R ec or d and r e p r o d u c e t h e I0 KHz s i g n a l o f The TEST OSC and a d j u s t t h e L I N E INPUT c o n t r o l...
  • Page 94 S E C T I O N 7 ;S » 2 0 '. F i g u r e 7 - 8 Record Sys tem B l o c k and Level Diagr am STANDARD BIASING 15 Ips --------BIAS CURRENT i;nA} Figure 7-9 B ia s Current v .s .
  • Page 95 S E C T I O N 5050 M K E is ips.NAB, OUTPUT LEVEL SOCOTCH #226, I KHz NOTE * 1 : 320 nwb/m : DIN REFERENCE LEVEL T h i s i s " o pe n c i r c u i t f l u x "...

  • Page 96: O V E R A L L F R Eq U E N C Y R E S P O N S

    S E C T I O N 7 7 - 6 - 1 9 ) OVERALL FREQUENCY R E S P O N S E At 15 i ps , o v e r a l l f r e q u e n c y r e s p o n s e i s meas ur ed at SRL (0 V U) , a t 7 1/2 i p s , i t s h o u l d be m e a s u r e d a t l e a s t 10 dB ( - 1 0 VU) b e l o w...

  • Page 97: Moni Tor

    S E C T I O N For 7 1/2 i p s : 8 . S h i f t t h e f r e q u e n c y t o 1 KHz and a d j u s t t h e L I N E INPUT c o n t r o l t o o b t a i n a - 6...

  • Page 98: T E S T Osc Level A D J Us T M E

    S E C T I O N 7 5. V e r i f y t h a t t h e v a l u e s shown in T a b l e 7 - 4 a r e o b t a i n e d on each "H" and "...

  • Page 99: R Ec Or D Level A D J U S T M E N

    S E C T I O N 7 7 - 6 - 1 1 2 ) R E C O R D L E V E L A D J U S T M E N T A r e c o r d le v el a d j u s t m e n t s h o u l d be made whenever t h e t a p e used w i t h the equ ipme nt I s changed and t h e head i s r e p l a c e d .
  • Page 100 S E C T I O N 7 4. F o r I EC e q u a l z a + i o n , s h i f t t h e f e e d i n g l e v e l t h e a u d i o...

  • Page 101: Major Component Replacement

    S E C T I O N 8 S E C T I O N 8 M A J O R C O M P O N E N T R E P L A C E M E N T P r i o r t o r e p l a c i n g m a jo r comp one nts , p e r f o r m a l l t h e s t e p s f o r a c c e s s t o t h e t r a n s p o r t .

  • Page 102: Reel M Otor Replacement

    S E C T I O N 8 8 - 1 - ( 2 ) R E E L MOTOR R E P L A C E M E N T To r e p l a c e t h e s u p p l y o r ta ke up motor p ro ce ed as f o l l o w s : 1.
  • Page 103 S E C T I O N 8 - 1 - ( 3 ) B R A K E ARM A S S E M B L Y AND B R A K E S O L E N O I D R E P L A C E M E N T When a new b r a k e arm a s s e m b l y o r new b r a k e s o l e n o i d i n s t a l l e d...

  • Page 104: Power T R A N S F O R M E R Replacement

    S E C T I O N 8 4. I n s t a l l a new s o l e n o i d h o u s i n g and p l u n g e r and a d j u s t th e s o l e n o i d f o r a 5 + 0.5mm ( 0.

  • Page 105: P I N C H R O L L E R Replacement

    S E C T I O N 4. Remove t h e c a p s t a n m o u n t i n g p l a t e and c a p s t a n m ot or by r e m o v i n g t h e f o u r M4 c r o s s - r e c e s s e d s c r e w s (A) on t h e m o u n t i n g p l a t e .

  • Page 106: D E S C R I P T I O N

    S E C T I O N 8 FLAT HEAD SOCKET CAP SCREW PINCH ROLLER CAP PINCH ROLLER F i g u r e 8 - 4 P i n c h R o l l e r Removal 8 - 5 HEAD A S S E M B L Y R E P L A C E M E N T T h i s...
  • Page 107 S E C T I O N 8 Poor c o n t a c t i s t h e r e s u l t o f i mp rope r a d j u s t m e n t and i s e v i d e n c e d by t h e l o s s of h i g h f r e q u e n c y r e s p o n s e o f t h e r e c o r d o r r e p r o d u c e head,...
  • Page 108 S E C T I O N 8 2. F o r r e c o r d head r e p l a c e m e n t A. R e c or d b i a s a d j u s t m e n t . B.

  • Page 109: E R A S Ehead A L I G N M E N T

    S E C T I O N 8 8 - 5 - ( 3 ) R E C O R D R E P R O D U C E HEAD A D J U S T M E N T F o l l o w t h e p r o c e d u r e f o r r e p r o d u c e s y s t e m a d j u s t m e n t g i v e n in S e c t i o n 7 of t h i s m a n u a l .
  • Page 110 S E C T I O N 8 3. Rep ea t s t e p 2 in s m a l l i n c r e m e n t s t o a c h i e v e a minimum r e a d i n g on t h e wave a n a l y z e r .

  • Page 111: Troubleshooting

    S E C T I O N 9 S E C T I O N 9 T R O U B L E S H O O T I N G 9 - 1 P R E L I M I N A R Y P R O C E D U R E S a p r o b l e m s h o u l d o c c u r...

  • Page 112: T R O U B L E S H O O T I N G H I N T S F O R A M P L I F I E R S

    S E C T I O N 9 T a b l e 9-1 T r o u b l e s h o o t i n g H i n t s f o r A m p l i f i e r s I tem Symptom I t e m s t o be checked...
  • Page 113 S E C T I O N 1 tem Symptom I t e ms t o be checked D e f e c t i v e par ts NO PLAY, F.FWD Examine t a p e t h r e a d i n g I C 1 , Q 4 , 6 , 7 , 8 , 9 , 1 0 , 1 1 o r RWD mode t e n s i o n arm p o s i t i o n s...

  • Page 114: Parts L I S T S And Schematics

    S E C T I O N S E C T I O N 10 P A R T S L I S T S A N D S C H E M A T I C S When o r d e r i n g p a r t s , t h e p a r t number must be s p e c i f i e d .

  • Page 115: S A F E T Y Components

    S E C T I O N 1 0 - 1 S A F E T Y C O M P O N E N T S F o r s a f e o p e r a t i o n , c o m p o n e n t s s p e c i f i e d by t h e s y m b o l z L , in t h e c i r c u i t d i agr am, must n o t be r e p l a c e d w i t h on es o f a d i f f e r e n t t y p e .

  • Page 116: A Ss E Mb L Y Hardware C O D I N G

    S E C T I O N 1 0 - 2 A S S E M B L Y HARDWARE C O D I N G AI I s c r e w s c o n f o r m t o ISO s t a n d a r d , and have a c r o s s - r e c e s s e d head, u n l e s s o t h e r w i s e n oted.

  • Page 117: Part S L I S T S And E X P L O D E D View

    S E C T I O N Hex S o c k e t Head Screw Hex S o c k e t H e a d l e s s S e t Screw F l a t Washer S p r i n g Washer Hex Nut L oc k Washer...
  • Page 118 S E C T I O N EXPLODED VIEW 1. HEAD ASSEMBLY C3x6N C3*6N FC3*10B fC3*10B 1 0 - 5...
  • Page 119 S E C T I O N P A R T S L I S T C H A S S I S A S S E M B L Y P a r t No. N o t es D e s c r i pt i on R e f .
  • Page 120 S E C T I O N E X P L O D E D V I E W C H A S S I S A S S E M B L Y 1 0 - 7...
  • Page 121 S E C T I O N P A R T S L I S T C A P S T A N , P I N C H R O L L E R a n d S H I F T E R A S S E M B L Y D e s c r i pt ion P a r t No.
  • Page 122 S E C T I O N 1 0 - 9...
  • Page 123 S E C T I O N P A R T S L I S T C A P S T A N , P I N C H R O L L E R , a n d S H I F T E R A S S E M B L Y D e s c r i p+ ion P a r t No.
  • Page 124 S E C T I O N E X P L O D E D V I E W C A P S T A N , P I N C H R O L L E R a n d S H I F T E R A S S E M B L Y 1 0 - 1 1...
  • Page 125 S E C T I O N P A R T S L I S T R E E L A S S E M B L Y R e f . No. D e s c r i p+ i on P a r t No.
  • Page 126 S E C T I O N E X P L O D E D V I E W R E E L A S S E M B L Y 1 0 - 1 3...
  • Page 127 S E C T I O N PARTS L I S T 5. TENS IuN ARM, IMPEDANCE ROLLER, and TI MER ASSEMBLY P a r t No. N ot e s D e s c r i pt ion R e f . No. KAOC005 Cap, Arm KA0A017A...
  • Page 128 S E C T I O N EXPLODED VIEW 5. TENSION ARM, IMPEDANCE ROLLER, and TI ME R ASSEMBLY 1 0 - 1 5...
  • Page 129 S E C T I O N P A R T S L I S T C O N T R O L S W I T C H A S S E M B L Y D e s c r i pt ion R e f.
  • Page 130 S E C T I O N E X P L O D E D V I E W C O N T R O L S W I T C H A S S E M B L Y -B2.&4 —...
  • Page 131 S E C T I O N P A R T S L I S T A M P L I F I E R A S S E M B L Y P a r t No. N o t e s D e s c r i pt ion R e f.
  • Page 132 S E C T I O N E X P L O D E D V I E W A M P L I F I E R A S S E M B L Y 1 0 - 1 9...
  • Page 133 S E C T I O N P A R T S L I S T A M P L I F I E R A S S E M B L Y R e f . N o. D e s c r i pt i on P a r t No.
  • Page 134 S E C T I O N VIEW E X P L O D E D A M P L I F I E R A S S E M B L Y 1 0 - 2 1...
  • Page 135 S E C T I O N P A R T S L I S T C O N N E C T O R P A N E L A S S E M B L Y D e s c r i pt ion P a r t No.
  • Page 136 S E C T I O N E X P L O D E D V I E W C O N N E C T O R P A N E L A S S E M B L Y 1 0 - 2 3...
  • Page 137 S E C T I O N P A R T S L I S T C A S E A S S E M B L Y N o te s P a r t No. D e s c r i pt ion R e f .
  • Page 138 S E C T I O N E X P L O D E D V I E W C A S E A S S E M B L Y 1 0 - 2 5...
  • Page 139 S E C T I O N DARTS L I S T 10. PACKAGING P a r t No. D e s c r 1pt i on N o te s iase , P a c k in g K705301 P a c k i n g , Top K705302 C o v e r, A c c e s s o r y Box...
  • Page 140 S E C T I O N EXPLODED VIEW 10. PACKAGING 1 0 - 2 7...

  • Page 141: P In Iden Tificat Io N

    S E C T I O N 10-4 P IN IDEN TIFICAT IO N The f o l l o w i n g t a b l e sh o w s t h e p in i d e n t i f i c a t i o n o f a l l d io d e s , LEDs t r a n s i s t o r s ,...
  • Page 142 S E C T I O N TRANS ISTOR Tr-1 c - 1 TRANSISTOR ARRAY QA720R I c —3 VOLTAGE REGULATOR ITD 62301 (2SA 720R) IHC14305 (u PC 14305) (TD 62301 ) QA1015GR IH C 14 31 5(^PC 1431 5) <...
  • Page 143 S E C T I O N IC -8 1-0012 D E C K C O N TRO L STRB2 FT?©? STRB1 G N O ! ■ £ SAFETY f ~ T DIRECTION f~5~ t jp s r k STOP/MOVE T7*o MOT.REV/ri) MODE...
  • Page 144 S E C T I O N IMC 14584 I Q - 2 5 IA07N IC—19 IMC 14073 C -22 (MC 14584B) (SN7407N) (MC 14073B) TOP VIEW TOP VIEW TOP VIEW C - 2 3 C - 2 6 IC -2 0 IMSM 561 IALS190N IMC 14081...
  • Page 145 MX5050 MK-III 4 TAPE RECORDER SCHEMATIC DIAGRAMS TYPE ASSEMBLY NAME DWG. No OTARI PART No. PB76E0A Head Connection PCB Ass'y 4-28961 Tape Transport Wiring Diagram T50660B 3-9053 4-28963 PB82L0A Timer PCB Ass'y 3-9052 PB44S0BA Control PCB Ass'y PB82R0A MIC ATT PCB A s s ’y...
  • Page 146 R/ E3 RZ E4 M (TYPE ; : x. M. TYPE N0(A )T0 4 - 2 7 P 2 & < 2- 2 8 9 6 ° 4 - 2 8 9 6 / )AT THE END Zz w /& vJ / o n - u J m M B «...
  • Page 149 TYPE NO(A )T0 & ( )AT THE END § ( / l CHS MIC S I & l>" “ ( A V ■ ( Z E D E & > i> y ;,: ; C"* 7 ; $ _ > 1 •"...
  • Page 150 m i Ixso-ip lion . M aloT>U <l U o < DgSCri p tiori­ -A .n IAIS0SN SW7<H_£05W Lj-30.2?-*f P N iM I-0 2 FH7F0I0 l?5V A S M IA - 02 FH 7F020 175 V tA HKI.-4- SAJ7a06*J ?>.S. S 2 v 8 ? 0 &...
  • Page 151 T Y P E N0( X )T O ( 'A T T H E END. • FancTTon H / I P / i l S U P S w T e h s R elay R e f. Sio fr a c tio n O u tp u t SW !0 | Level SV...
  • Page 152 Z M F [ £E£,rSTtft Ay. C L O C K \AF -M :- - - 1 ^ 5 -,• > / ?) OH! R EC ~(A F - f ii 6 j — ^ 7 ~ ° to K toM /SO yf 2 S E C .

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