Sony B Mechanism Operation Manual Download Page 7 | Manualshive

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Summary of Contents for B Mechanism

Page 1: ...Video8 B MECHANISM OPERATION MANUAL A18 m MECHANISM DECK ...

Page 2: ......

Page 3: ...inch roller 8 3 3 Driving of tension regulator and TG1 10 3 4 Driving of S reel and S ratchet 12 3 5 Driving of T ratchet and T soft gear 14 4 Operation in each mode 17 4 1 Cassette IN _STOP 17 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 STOP _ PB 23 STOP _ REC 27 STOP _ FF 31 STOP _ REWIND 35 PB _ CUE 38 PB _ REVIEW 40 PB _ PAUSE 42 STOP _ EJECT 45 ...

Page 4: ... parts layout diagram REC proof switch S001 Sensor Cassette down switch S002 T reel LED S reel Capstan motor M902 Pinch roller Drum M901 Loading motor M903 Sensor S Gooseneck gear Rotary encoder S901 Fig 1 1 ...

Page 5: ... rotates Rotary encoder rotates Cam gear rotates M slider slides in the direction of arrow Pinch press plate moves in the direction of arrow f I L arm moves in the direction of arrow direction of arrow Worm Loading motor Gear Rotary encoder Tension regulator plate 1 GL slider Pinch press plate GL arm Cam gear LS arm Fig 2 1 M slider ...

Page 6: ...plate moves inOdirection after first slightly moving int_ direction I I TG1 moves m the I direction of arrow 1 Claws on stoppers S and T are released from locked position and guide S TG2 and guide T TG3 move in the direction of arrow Pinch roller moves in theJ direction of arrow GL arm moves in the direction of arrow GL slider moves in the direction of arrow I I Guide S TG2 and guide T TG3 further...

Page 7: ...GL arm GL slider Pinch press plate Cam gea LS arm M slider Fig 3 1 TG1 Guide T TG3 Guide S TG2 uide rail Pinch roller arm Stopper T Stopper S I Viewed from the rear I Fig 3 2 LS chassis assembly ...

Page 8: ... moves in the direction of arrow Pinch press plate moves in the direction of arrow _ Shaft of pinch roller arm is pushed with pinch press plate at _ portion Pinch roller moves in the direction of arrow to be pressed with capstan shaft I I ...

Page 9: ...Pinch press plate M slider Fig 3 3 Shaft of pinch roller Torsion spring pinch press plate Fig 3 4 ...

Page 10: ... arrow_ I TG1 further moves in the direction of arrow fi I TG1 moves in _ direction I shortly after it moves int_ I direction TG1 moves inl_ direction I Tension regulator plates 2 I and 1 move in direction i Rotary encoder further rotates and tension regulator plates 2 and 1 move in _ direction shortly I after they move in _ direction I Tension regulator plates 2 I and 1 move inl_ direction I ...

Page 11: ... plate 2 Rotary encoder S901 Tension regulator plate 1 O slider Fig 3 5 TG1 _1_ _ TG1 moves in the direction of arrow _as LS chassis moves Tension regulator band regulator plate 2 Tension regulator plate 1 Fig 3 6 ...

Page 12: ... the direction of arrow I as cam gear rotates I L 1 S ratchet shaft touches M slider onl_ portion then S ratchet moves in the direction of arrowl_ S ratchet release plate moves in the direction of arrowt_ With this operation of S reel the brake is released ...

Page 13: ...Fig 3 7 S reel S ratchet release plate Tension spring S ratchet _ S ratchet shaft _ M slider Tension spring Fig 3 8 ...

Page 14: ...lowed by movement in the reverse direction M slider pushes T ratchet only portion and T ratchet moves in the direction of arrow _ then immediately returned I T soft claw and T soft spring move in the direction of arrow_ M slider again moves in the direction of arrow_ T ratchet moves in the direction I of arrow _ to brake T reel Under this condition T reel is locked allowing no rotation ...

Page 15: ...T soft claw T ratchet slider T soft g T soft spring Fig 3 9 Tension spring T reel ratchet T soft T soft spring T soft gear M slider Fig 3 10 ...

Page 16: ...irection I of arrow _ followed by the movement I in direction l I Pinch roller moves in the direction of arrow i_ to contact with capstan shaft IPinch roller rotates in the direction of I_ i arrow D then in the reverse direction I f I Loading motor M903 rotates reversely I Pinch roller moves in the direction I opposite to arrow separating from I capstan shaft i Loadingmotor M903 stops I T ratchet ...

Page 17: ...901 and switch S002 capstan motor M902 start to rotate EJ arm Fig 4 1 Cassette compartment DOWN Loading motor M903 Drum M901 HC roller GL slider Capstan motor M902 Rotary encoder Tension reg plate 1 Tension reg plate 2 Cam belt Pinch press plate LS arm Change gear M slider Relay gear Fig 4 2 Mechanism chassis assembly Tension regulator band RVS arm S ratchet release plate S TG1 Guide S Guide T _2 ...

Page 18: ... press plate to move in the direction of arrow Pinch roller moves in the direction of arrow to contact with capstan shaft T ratchet and S ratchet move in each direction of arrows as M slider moves Brakes for T reel and S reel are released allowing free rotation l l Capstan motor M902 rotates in the direction of arrow Pinch roller rotates in the direction of arrow to start tape running 1 Change gea...

Page 19: ...release plate S ratchet S reel z_ T soft spring Gooseneck gear LS arm boss T soft claw T TG3 Pinch roller reel ratchet T soft gear Loading motor M903 Guide S TG2 TG1 Tension regulator band S ratchet S ratchet release plate Drum M901 iX HCroller GLslider S reel Gooseneck gear Capstan motor M902 TG4 T ratchet Fig 4 4 Mechanism chassis and LS chassis assembly ...

Page 20: ......

Page 21: ...n the direction of arrow Pinch roller moves in the direction of arrow to contact with capstan shaft Drum M901 rotates T ratchet and S ratchet move in each direction of arrows as M slider moves Brakes for T reel and S reel are released allowing free rotation I Capstan motor M902 rotates in the direction of arrow Pinch roller rotates in the direction of arrow to start tape running 1 Change gear and ...

Page 22: ...ar i M slider Drum M901 Capstan motor M902 __ _Timing belt Pinch press plate Change gear Relaygear Fig 4 5 Mechanism chassis assembly Loading motor M903 Drum M901 Capstan motor M902 Pinchroller TG1 Tension regulator band S ratchet S _el Gooseneck gear T reel Fig 4 6 Mechanism chassis and LS chassis assembly ...

Page 23: ...h press plate to move in the direction of arrow I Pinch roller moves in the direction of arrow to contact T ratchet and S ratchet move in each direction of arrows as M slider moves Brakes for T reel and S reel are released allowing free rotation Capstan motor M902 rotates in the direction of arrow at the high speed Pinch roller rotates in the direction of arrow to start tape running Change gear an...

Page 24: ...ension regulator plate 2 Cam Pinch press plate Change gear M slider Relay gear Fig 4 7 Mechanism chassis assembly Loading motor M903 Drum M901 Capstan motor M902 TG1 Pinch roller Tension regulator band S reel Gooseneck gear T reel Fig 4 8 Mechanism chassis and LS chassis assembly ratchet ...

Page 25: ... reg plate 1 Tension reg plate 2 Cam g plate belt press M slider Change gear Relay gear Fig 4 9 Mechanism chassis assembly Loading motor M903 Drum M901 Capstan motor M902 Pinch roller TG1 Tension regulator band ratchet S gear Fig 4 10 Mechanism chassis and LS chassis assembly ...

Page 26: ... of arrow Pinch roller moves in the direction of arrow to contact with capstan shaft T ratchet and S ratchet move in each direction of arrows as M slider moves With this operation tension regulator band is loosened so that the regulation of S reel rotation becomes less severe Brakes for T reel and S reel are released allowing free rotation Capstan motor M902 rotates in the direction of arrow r Pin...

Page 27: ...tor plate 2 Cam g g belt ch press plate M slider Fig 4 1 1 Change gear Relay gear Mechanism chassis assembly Loading motor M903 Drum M901 Capstan motor M902 Pinch roller TG1 Tension regulator band RVS arm S ratchet Gooseneck gear I S reel T reel Fig 4 12 Mechanism chassis and LS chassis assembly ...

Page 28: ... I Gooseneck gear rotates at the high speed via timing belt change gear and relay gear l T reel rotates at the high speed I m This operation winds tape around T reel t Pinch roller rotates at the high speed l This operation allows high speed running for tape ...

Page 29: ...Drum M901 Capstan motor M902 g belt Change gear Relay gear Fig 4 13 Mechanism chassis assembly Drum M901 Capstan motor M902 Pinch roller gear Fig 4 14 Mechanism chassis and LS chassis assembly ...

Page 30: ...ed IGooseneck gear moves in the direction of arrow to contact with S reel then rotates in the reverse direction at the high speed I S reel rotates in the reverse direction at the high speed This operation winds tape around S reel Pinch roller rotates in the reverse I direction at the high speed 1 This operation allows high speed running for tape in the direction opposite to that at PB mode ...

Page 31: ...2 belt Relay gear Change gear Fig 4 15 Mechanism chassis assembly TG1 Tension regulator band I i S reel Drum M901 Gooseneck gear T reel Capstan motor M902 Pinch roller Fig 4 16 Mechanism chassis and LS chassis assembly ...

Page 32: ...2 stops I I Timing belt change gear and relay gear stop their rotation fGooseneck gear and T reel stop rotating Pinch roller stops rotating This operation stops tape running NOTE Drum continues rotating without stopping the rotation I ...

Page 33: ...Capstan motor M902 Relay gear Change gear Fig 4 17 Mechanism chassis assembly Drum M901 Capstan motor M902 Gooseneck gear m_ L_f reel Pinch roller Fig 4 18 Mechanism chassis and LS chassis assembly ...

Page 34: ...903 Drum M901 Capstan motor M902 Gear Rotary Tension regulator plate 1 Tension regulator plate 2 Cam gear M slider Change gear _ 7 Relay gear Timing belt Pinch press plate GL slider Fig 4 19 Mechanism chassis assembly ...

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Page 36: ...roller Drum M901 Guide T TG3 Capstan motor M902 TG1 Gear Tension reg band RVS nch roller S Gooseneck gear T soft spring S reel T soft claw T soft gear r reel Loading motor M903 Drum M901 Capstan motor M902 TG1 h roller S reel T reel ...

Page 37: ... arm at portion so that the claw is releases When released the i lock the whole cassette compartment is lifted up in the direction of arrow _ When EJ arm moves in the direction of arrow cassette down switch is brought into action to stop drum M901 capstan motor M902 and loading motor M903 Fig 4 21 Cassette compartment UP ...

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