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Summary of Contents for B Mechanizm

Page 1: ...Video8 BMECHANISM OPERATION MANUAL l_ MECHANISM DECK ...

Page 2: ......

Page 3: ...ch 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 STOP _ PB 23 4 3 STOP _ REC 27 4 4 STOP _ FF 31 4 5 STOP _ REWIND 35 4 6 PB _ CUE 38 4 7 PB _ REVIEW _ 40 4 8 PB _ PAUSE 42 4 9 STOP _ EJECT 45 3 ...

Page 4: ... Main parts layout diagram REC proof switch S001 Sensor Cassette down switch soo2 T reel LED S reel Capstan moto M902 Pinch roller Drum M901 Sensor S gear Loading motor M903 Rotary encoder sg01 Fig 1 1 4 ...

Page 5: ...Rotary encoder rotates I M slider slides in the direction of I arrow I I Pinch press plate moves in the I direction of arrow f I GL arm moves in the direction of arrow I GL slider moves in the direction of arrow I Loading motor M903 Rotary encoder Tension regulator plate 1 _ GL slider Pinch press plate GL arm Cam gear LS arm Fig 2 1 M slider 5 ...

Page 6: ...y moving in _ direction I I TG4 moves in the direction of arrow TG 1 moves in the I direction of arrow i V Claws on stoppers S and T are released from locked position and guide S 0 02 and guide T 00G3 move in the direction of arrow r Pinch roller moves in the direction of arrow 4 r GL ann moves in the direction of arrow I GL slider moves in the direction of arrow I I Guide S TG2 and guide T TG3 fu...

Page 7: ...L slider _ GL arm__ _oo_ _ _ r_ _ ___ Pinch press plate Cam gear_ iS _ __ Fig 3 1 TG1 Guide T TG3 Guide S TG2 _ _uide rail Pinch roller arm Stopper T iViewed from the rear I Fig 3 2 LS chassis assembly 7 ...

Page 8: ...der 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 8 ...

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

Page 10: ...on of I arrow_ 9 TG1 further moves in the dire_on of arrow_ 4 p i TG1 moves in _ direction shortly after it moves in_ direction I TG1 moves in _iirection 1 Tension regulator plates 2 I and 1 move in_ lirection n Rotary enc_ler further rotates and tension regulator plates 2 and 1 move inOdirection shortly after they move ini_ dim_ion p Tension regulator plates 2 and 1 move in direction I 10 ...

Page 11: ...n regulator plate 2 Tension regulator plate 1 _ _ _Rotaryencoder S901 der Fig 3 5 TG1 TG1 moves inthe direction of arrow _as LS chassis moves Tension regulator band regulator plate 2 Tension regulator plate I ...

Page 12: ...in the direction of arrow I i as cam gear rotates I S ratchet shaft touches M slider on portion then S ratchet moves in the direction of arrow _ S ratchetreleaseplatemoves inthe directionof arrow_ I With this operation of S reel the brake is released 12 ...

Page 13: ...S S ratchet shaft LSarm S me S ratchetretease plate S S ratchet i enslonspring M slider ...

Page 14: ...on of arrowO then immediately returned 1 M slider pushes T ratchet on portion and T ratchet moves in the direction of arrow_ then immediately returned 1 I M slider again moves in the direction of arrow i IT soft claw and T soft spring T ratchet moves in the direction i move in the direction of arrow_ of arrow _ to brake T reel I Under this condition T reel is locked allowing no rotation 14 ...

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

Page 16: ...IMemol o o o o _ o o o 0 ooo o _ o o o ooo _ o _ ooo oo o _ooo oo o_ o o oooo o o o o o oooo _o _o o o 6 ...

Page 17: ...irection of arrow as LS chassis slides This operation the tape contacts closely with drum M901 1 S ratchet moves in the directionof arrow 0 then returned I Pinch miler moves in the direction of arrow D l I TG1 is slightly returned in the direction of arrow IM slider further moves in the direction of arrow _ followed by the movement I 1 Pinch miler moves in the direction of I arrow tocontactwithcap...

Page 18: ...apstan motor M902 stops T reel slightly rotates in the direction of arrow r Capstanmotor M902 rotates in the reverse _ S reel slighdy rotates in direCnomadal nmantadc n nnmediatdy returns t the F _ the directi n f art w I I Gooseneck gear moves in the direction L_ __ T reel slightly rotates in of arrow _ to gear into T reel the direction of arrow This operation the looseness in tape is corrected I...

Page 19: ...rtionin cassette compartment touches EJ arm at _ portion so that EJ arm moves in the direction of arrow _ This operation is locked cassette compartment and turns ON cassette down switch S002 When tumed ON the cassette down switch S002 drum M901 and capstan motor M902 startto rotate EJ arm Fig 4 1 Cassette compartment DOWN 9 ...

Page 20: ...2 Cam plate belt press LS arm Change gear M slider Relay gear Fig 4 2 Mechanism chassis assembly TG1 Guide S Guide T TG LED Pinch roller TG4 Tension regulator band RVS S ratchet release plate S down switch S002 reel ratchet proof switch S001 S reel T soft claw T soft spring Gooseneck gear T soft gear Fig 4 3 LS chassis assembly 20 ...

Page 21: ...S ratchet release plate S ratchet S reel LS arm boss T softspnng Gooseneck gear T softclaw T TG3 reel ratchet T softgear Loadingmotor M903 Drum M901 HC ller GL slider Capstanmotor M902 GuidoS TG2 TG1 Tension regulator band S S ratchetrelease plate ratchet S reel Gooseneckgear Fig 4 4 Mechanism chassis and LS chassis assembly 2 ...

Page 22: ...22 ...

Page 23: ... moves in the direction of arrow This operation corrects the looseness in tape Loading motor M903 rotates 1 Rotary encoder and cam gear rotate via gear A 1 M slider slides in the direction of arrow allowing pinch press plate to move in the direction of arrow I Pinch roller moves in the direction of arrow to contact with capstan shaft 23 ...

Page 24: ...sed allowing free rotation I Capstan motor M902 rotates in I I the direction of arrow I Pinch roller rotates in the direction of arrow to start tape running l Change gear and relay gear respectively rotate via timing belt Gooseneck gear rotates in the direction of arrow allowing the rotation of T reel This operation winds tape around T reel 24 ...

Page 25: ...r plate I Tension regulator plate 2 Cam belt Pinch press plate Change gear M slider Relay gear Fig 4 5 Mechanism chassis assembly Loading motor M903 Drum M90t Capstan motor M902 TG1 Tension regulator band roller ratchet gear Fig 4 6 Mechanism chassis and LS chassis assembly 25 ...

Page 26: ... ooo oo oo o oo oo oo o o oo 26 ...

Page 27: ...y encoder L ITG1 moves in the direction of I arrow This operation corrects the looseness in tape I Loading motor M903 rotates I rotate via gear A 1 M slider slides in the direction of arrow allowing pinch press plate to move in the direction of arrow Pinch roller moves in the direction of arrow to contact with capstan shaft 27 ...

Page 28: ... allowing free rotation Capstan motor Mg02 rotates in the direction of arrow Pinch roller rotates in the direction of arrow to start tape running 1 Change gear and relay gear respectively rotate via timing belt I Gooseneck gear rotates in the direction of arrow allowing the rotation of T reel This operation winds tape around T reel 28 ...

Page 29: ...on regl plate 2 Cam g belt Pinch press plate Change gear M slider Relay gear Fig 4 7 Mechanism chassis assembly Loading motor M903 Drum M901 Capstan motor M902 TG1 Tension regulator band S u miler S ratchet Gooseneck gear S T Fig 4 8 Mechanism chassis and LS chassis assembly 29 ...

Page 30: ... _ o _ _ _ _ o o q _ _ Qo p o _ _o q _ _ _ o _ _ _ _ _ _ o o _ 30 ...

Page 31: ...row _ 1 in conjunction with the rotation I of rotary encoder ITGI moves in the direction of alTOW This operation corrects the looseness in tape M slider slides in the direction of arrow allowing pinch press plate to move in the direction of arrow Pinch roller moves in the direction of arrow to contact with capstan shaft 31 ...

Page 32: ...g 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 1 Change gear and relay gear respectively rotate via timing belt Gooseneck gear rotates in the direction of arrow allowing the rotation of T reel This operation winds tape around T reel 32 ...

Page 33: ... I Tension regulator plate 2 Cam plate g belt press M slider Change gear Relay gear Fig 4 9 Mechanism chassis assembly Loading motor M903 Drum M901 Capstan motor M902 TG1 Tension regulator band S Pinch roller ratchet Fig 4 10 gear S T Mechanism chassis and LS chassis assembly 33 ...

Page 34: ... o _ o 34 ...

Page 35: ...oves in the direction of I arrow M slider further moves in the direction arrow allowing RVS arm to move in the direction arrow With this operation tension regulator band is loosened so that the regulation of S reel rotation becomes less severe M slider slides in the direction of axrow allowing pinch press plate to move in the direction of arrow Pinch roller moves in the direction of arrow to conta...

Page 36: ...sed allowing free rotation Capstan motor M902 rotates in the direction of arrow Pinch roller rotates in the direction of arrow to start tape running Change gear and relay gear respectively rotate via timing belt Gooseneck gear rotates in the direction of arrow allowing the rotation of S reel This operation winds tape around S reel 36 ...

Page 37: ...ate 2 Cam plate belt press M slider Fig 4 11 Change gear Relay gear Mechanism chassis assembly Loading motor M903 TG1 i I Drum M901 Tension regulator Capstan motor M902 Pinch roller band RVS arm S ratchet S reel Gooseneck gear T reel _Tratchet Fig 4 12 Mechanism chassis and LS chassis assembly 37 ...

Page 38: ... at the high speed Gooseneck gear rotates at the high speed via timing belt change gear and relay gear This operation winds tape around T reel I I Pinch roller rotates at high speed I the This operation allows high speed running for tape 38 ...

Page 39: ...Drum M901 Capstan motor M902 belt Change gear Relay gear Fig 4 13 Mechanism chassis assembly Drum M901 Capstan motor M902 gear roller Fig 4 14 Mechanism chassis and LS chassis assembly 39 ...

Page 40: ...speed Gooseneck gear moves in the direction of arrow to contact with S reel then rotates in the reverse direction at the high speed 1 S reel rotates in the reverse direction at the high speed This operation winds tape around S reel i i i Pinch roller rotates in the reverse direction at the high speed This operation allows high speed running for tape in the direction opposite to that at PB mode 40 ...

Page 41: ... M902 belt Change gear Relay gear Fig 4 15 Mechanism chassis assembly Tension regulator bend TG1 Drum M901 S reel Gooseneck gear T reel Fig 4 16 Mechanism chassis and LS chassis assembly 41 Capstan motor M902 rol_r ...

Page 42: ...an motor M902 stops I t relay gear stop their rotation 1 Gooseneck gear and T reel stop rotating i Pinch roller stops rotating This operation stops tape running NOTE Drum continues rotating without stopping the rotation 42 ...

Page 43: ...Capstan motor M902 Change gear Relay gear Fig 4 17 Mechanism chassis assembly Drum M901 Capstan motor M902 g6ar roller Fig 4 18 Mechanism chassis and LS chassis assembly 43 ...

Page 44: ...o o _ o o oo oo o o oo oo o o o o o o o ooo_ o o o o o ooo o _oo oo ooo oo oooo oo o o o o o o o o ooo oo oo o o o o o o o oo o ooo oo o o o o o o o o o 0 o oo o o o o _ o o o o oo o o o o o o oo o o o oo o oo o o o ooo o ooooo o o o oo o ooo o o l _ oo o oo o o o o o o _ ooo o o oo o_ o o o o o oo ooo oo _ o o o o o oooo ooooo o o o _ o o oo o o 44 ...

Page 45: ... draw out LS chassis I TG4 re yes in the directi n f larrow _ ILoadingmotor M903 stops I Loading motor M903 reversely rotates I Loadingmotor M903 stops I M slider moves slightly in the direction I of arrow _ then reservely moves Pinch roller moves in the direction of arrow in conjunction with the movement of pinch press plate and along guide T TG3 F IM slider moves in the direction opposite to arr...

Page 46: ...eel from braked condition r Drum M901 stops I Capstan motor M902 rotates Gooseneck gear rotates in the direction of arrow via timing belt change gear and relay gear I T reel rotates in the direction of arrow J This operation winds tape around T reel II r Capstan motor M902 stops 46 ...

Page 47: ...ing motor M903 Drum M901 Capstan motor M902 Gear Tension reg_ plate 1 Tension regulate plate 2 Cam gear Change gear M slider Relay gear belt inch press plate GL slider Fig 4 19 Mechanism chassis assembly 4 ...

Page 48: ...de T TG3 Capstan motor M902 TG1 Geai Tension reg band RVS arm S roller S reel T softspring T softclaw T soft gear T reel Loadingmotor M903 Drum M901 Capstanmotor M902 TG1 Pinch roller S reel T reel Fig 4 20 Mechanism chassis and LS chassis assembly 48 ...

Page 49: ...ompartment by EJ arm at portion so that the claw is releases When released the lock the whole cassette compartment is liftedup 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 49 ...

Page 50: ...SONY 9 973 80 1 31 Sony Corporation Consumer A V Products Company Personal Products Div 50 Eng_h 95K0593 1 Printed in U S A 1995 11 Published by Personal A V Products Div Quality Engineering Dept ...

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