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Video8

BMECHANISM

OPERATION MANUAL

l_!MECHANISMDECK

Summary of content (50 pages)

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Video8 B MECHANISM OPERATION MANUAL l_!MECHANISM DECK
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CONTENTS 1. Main parts layout diagram ....................................................................... 4 parts ............................................................................ 5 2. Operation of main 3. Operation of each part .............................................................................. 3-1. Driving of LS chassis ......................................................................................... 6 of pinch roller .......................................
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1. Main parts layout diagram REC proof switch (S001) T reel Cassette down switch (soo2) LED Sensor S reel Capstan moto (M902) Sensor S Pinch roller gear Drum (M901) Rotary encoder (sg01) Loading motor (M903) Fig.
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2. Operation of main parts I Loading motor (M903) rotates. I IWorm _ha_ and,o_ _ro_os. I ] Rotary encoder rotates. I f Tension regulator plate 1 moves in the direction of f arrow. M slider slides in the direction of I arrow ° of plate arrow.moves:in the I direction Pinch press I of arrow. I direction GL arm moves in the I' arrow.in the I direction GL slider of moves Loading motor (M903) Pinch press plate Rotary encoder GL slider Tension regulator plate .
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3. Operation 3-1. Driving of each part of LS chassis I [ LS arm moves. 1 Cam gear rotates. 1 I M slider moves in _) direction after first slightly moving in (_ direction. Pinch press plate moves in_)direction after first slightly moving in(_) direction. LS chassis moves. J ! of arrow. I direction TG4 moves in the ] TG 1 moves the -I direction of in 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.
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GL slider GL arm__ " _oo_._ _ _) @r_,_ ___ Cam gear_-iS "" Pinch press plate _ __ Fig. 3-1 Guide T (TG3) Pinch roller Guide S (TG2) TG1 _(_uide rail arm Stopper T i Viewed from the rear. I Fig.
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3-2. Driving of pinch roller I I M slider 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.
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press plate M slider Fig. 3-3 Pinch roller_....
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3-3. Driving of tension regulator Rotary encoder rotates. 1 I arrow(_as TG1 moves LS in chassis the direction moves.of 1 and TG1 [ | I J TG1 shaft touches on(_laortion. [ then it moves in the direction of I arrow_. ] ! I Tension regulator plates 2 n and 1 move in_:lirection, ! 9 ! Rotary enc_ler further rotates and tension regulator plates 2 and 1 move inOdirection shortly after they move ini_) dim_ion. TG1 further moves in the dire_on of arrow_.
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_'- _ _Rotaryencoder Tension regulator (S901) plate 2 der Tension regulator/ plate 1 Fig. 3-5 ® ® TG1 TG1 moves in the direction of arrow(_as LS chassis moves.
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3-4. Driving of S reel and S ratchet i I M cam slidergear moves in the direction of arrow I as rotates. S ratchet shaft touches M slider on® portion, then S ratchet moves in the direction of arrow(_). S ratchetreleaseplatemoves in the directionof arrow_. * With this operation of S reel the brake is released.
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3-5. Driving of T ratchet and T soft gear M slider moves in the direction of arrowl_ in no time followed by movement in the reverse direction. 1 + T soft claw and T soft spring move in the direction of arrowO, then, immediately I returned. ! M slider M slider pushes T ratchet on® portion and T ratchet moves in the direction of arrow_, then, immediately returned. 1 again moves in the direction of arrow@, IT soft claw and T soft spring " move in the direction of arrow_).
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IMemol ............................................................. • ...... ..................................... ....... _ ..... o°°°o . ......... .................... o ........... , ................................. ° ........ .o.0.ooo .......... • .............. °..°,°,o°_,.°o°° ............................................................................ ................................................ ÷°o°. °ooo ............................................. . ..................
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4. Operation 4-1. Cassette in each mode IN ====_ STOP I Loading motor (M903) rotates. [ Rotary encoder and cam gear rotate via gear A. I t f •I LS arm moves in the direction of arrow. I | m ; I M slider moves firstly in _) direction, subsequently in (_) direction. f I I TGI and TG4 move in the direction of arrow (_) in conjunction with the movement of LS arm boss.
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Drum (M901) rotates. ] Capstanmotor (M902) retains. I [ through timing belt. l [ Gooseneck gear moves in the direction ,I ] of arrow® to gearinto S reel. ] [ ] Capstan motor (M902) stops. T reel slightly rotates in the direction of arrow. moves in the direction of arrow (1_, [ 7reel followed by immediate releasing. I r direCnomadal°nmantadc'n.
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Cassette compartment * When cassette compartment is depressed in the directionof arrowO, claw on(_)portionin cassette compartment touches EJ arm at(_ direction of arrow(_). This operation is portion so that EJ arm moves in the locked cassette compartment and turns ON cassette down switch , down switch (S002), drum (M901) and (S002). When thetocassette capstan motortumed (M902)ON start rotate. Cassette down switch (S002) ! EJ arm + Fig.
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Capstan motor (M902) Drum (M901) Loading motor (M903) HC roller GL slider Gear Rotary € belt press plate Tension regulator plate I Tension regulator plate 2 Cam LS arm Change gear M slider Fig. 4-2 Relay gear Mechanism chassis assembly Pinch roller TG1 Guide S TG4 Guide T (TG LED Tension regulator band RVS down switch (S002) S ratchet release plate reel ratchet S proof switch (S001) S reel T soft claw Gooseneck gear T soft spring T soft gear Fig.
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Loading motor (M903) Drum Capstan motor(M902) GL slider HC roller Gear Rotaryencoder press plate T (TG3) TG1 Guide S reel Tension regulator band S ratchet release plate ratchet S reel T softspnng @ Gooseneck gear T softclaw S ratchet LS arm boss Loading motor(M903) Drum (M901) HC ,ller T softgear Capstanmotor(M902) GL slider Guido S (TG2) TG1 Tension regulator band S ratchet S ratchet release plate S reel Fig.
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.°
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4-2. STOP ,====_ PB Loading motor (M903) rotates. 1 rotate gear A. Rotaryvia encoder and cam gear 1 Tension regulator plates 1 and 2 [ move in the direction of arrow _)[ in conjunction with the rotation [ of rotary encoder. [ M slider slides in the direction of arrow, allowing pinch press plate to move in the direction of arrow. TG1 moves in the direction of arrow. Pinch roller moves in the direction of arrow to contact with capstan shaft. 1 * This operation corrects the looseness in tape.
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I Drum (M901) rotates. I T ratchet and S ratchet move in [ each direction of arrows as M slider moves. I I Capstan motor(M902) •I the direction rotates of arrow. in I l I Change gear and relay gear respectively rotate via timing belt. ' r ! Br_Lkes released, for allowing T reel andfreeS rotation. I_ee_ are I Pinch roller rotates in the direction of arrow to start tape running. Gooseneck gear rotates in the direction of arrow, allowing the rotation of T reel.
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Loading motor (M903) Drum (M901) Capstan motor (M902) Gear Rotary belt Tension regulator plate I Tension regulator plate 2 Pinch press plate Cam Change gear M slider Relay gear Fig. 4-5 Mechanism Loading motor (M903) chassis assembly Drum (M90t) Capstan motor (M902) roller TG1 Tension regulator band ratchet gear Fig.
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.. ...... . ........ ooo .......... oo.. ........... ..oo.. ........... ...o.oo.. ...... ° 26 oo.oo:. ..... ...o. ...... . ............. o....oo ............... . ..... . .......
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4-3. STOP ====_ REC I Loading motor (M903) rotates. !, rotate via gear A. 1 Tension regulator plates 1 and 2 I move in the direction of arrow (_)l in conjunction with the rotation ] of rotary encoder. [ ,L ITG1 moves in the direction of arrow. I * This operation corrects the looseness in tape. - 27 - 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.
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Drum (M901) rotates. T ratchet and S ratchet move in each direction of arrows as M slidermoves. Capstan motor(Mg02) the direction of arrow. rotates in [ 1 Change gear and relay gear respectively rotate via timing belt. p Brakes forallowing released, T reel and freeS rotation. reel are Pinch roller rotates in the direction of arrow to start tape running. direction of arrow, allowing the I Gooseneck gear rotates in the rotation of T reel. * This operation winds tape around T reel.
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Loading motor (M903) Drum (M901) Capstan motor (M902) © Rotary g belt Tension plateI Tension regl plate 2 Pinch press plate Cam Change gear M slider Relay gear Fig. 4-7 Mechanism Loading motor (M903) chassis assembly Drum (M901) Capstan motor (M902) miler TG1 Tension regulator band S S ratchet u Gooseneck gear S Fig.
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................................................... • ............. ..... °_°°°° , .......... ° ............................... : .... ° ........................................... .... ,°°,., ° ...... °,°,,,°,°°°°o°° • ......... ° ...................... • ........... , ..... °_,, °°,,°,,,°° ..... ° ........... ....... , ..... ......... °°°°,°,,,°°°° °°°°°,° ....... ........... ............................ o°° ....... : ............. • °°°, ....................................
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4-4. STOP ,=====_ FF Loading motor (M903) rotates. I ! rotate via gear A. Tension regulator plates 1 and 2 I move in the direction of arrow (_)1 in conjunction with the rotation I of rotary encoder. [ ITGI alTOW.moves in the direction of 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. [ * This operation corrects the looseness in tape.
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Drum (M901) rotates. [ Capstan motor (M902) rotates in the direction of arrow at the high speed. T ratchet and S ratchet move in each direction of arrows as M slider moves. 1 Change gear and relay gear respectively rotate via timing belt. Brakes forallowing T reel and reel are released, freeS rotation. [ Pinch roller rotates in the direction of arrow to start tape running. Gooseneck gear rotates in the direction of arrow, allowing the rotation of T reel. * This operation winds tape around T reel.
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Loading motor (M903) Drum (M901) Capstan motor (M902) Gear © Rotary g belt Tension re_ plate I 'Tension regulator plate 2 press plate. Cam Change gear M slider Relay gear Fig. 4-9 Mechanism chassis assembly Drum (M901) Loading motor (M903) Capstan motor (M902) Pinch roller TG1 Tension regulator band S ratchet gear S Fig.
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................................................................................................................................................. ........ o°.° ............................. .................... °.... , .................................................................... o ..................................... ° .... -. ° °-. ......................... - 34- ° .......... ° ............................................ ° ............ °°._ ................ ° ........
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4-5. STOP ,_> REWIND Loading motor (M903) rotates. rotate gear A.and cam gear Rotaryvia encoder M slider slides in the direction of axrow, allowing pinch press plate to move in the direction of arrow. ITension regulator plates 1 and 2 I move in the direction of arrow in conjunction with the rotation I of rotary encoder, i ®l ITG1 moves in the direction of arrow. I M slider further moves in the direction arrow, allowing RVS arm to move in the direction arrow.
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I Drum (M901) rotates. T ratchet and S ratchet move in each direction of arrows as M slider moves. in the direction of arrow. Capstan motor (M902) rotates respectively rotate via timing Change gear and relay gear belt. Brakes for T reel and S reel are released, allowing free rotation. Pinch roller rotates in the direction of arrow to start tape running. Gooseneck gear rotates in the direction of arrow, allowing the rotation of S reel. * This operation winds tape around S reel.
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Loading motor (M903) Drum (M901) Capstan motor (M902) \ © Rotary belt Tension reg_ plate 1 Tension regulator plate 2 " press plate Cam M slider Change gear Relay gear Fig. 4-11 Mechanism Loading motor (M903) chassis assembly Drum (M901) Capstan motor (M902) / \ / / TG1 i Pinch roller I Tension regulator band RVS arm / S ratchet / _Tratchet \ Gooseneck gear T reel S reel Fig.
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4-6. PB _ CUE at the high speed. Capstan motor (M902) rotates Gooseneck gear rotates at the high speed via timing belt, change gear and relay gear. I Pinch roller rotates at the high speed. * This operation winds tape around T reel. * This operation allows high speed running for tape.
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Drum (M901) Capstan motor (M902) belt Change gear Relay gear Fig. 4-13 Mechanism chassis assembly Drum (M901) Capstan motor (M902) roller gear Fig.
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4-7. PB ====_ REVIEW I I Capstan motor (M902) reversely rotates at the high speed. [ = ! ITiming belt, change gear and Irelay gear reversely rotates at the Ihigh speed. I i [TGI slightly moves I ]in the direction of ] arrow. Gooseneck gear moves in the direction of arrow to contact with S reel, then, rotates in the reverse direction at the high speed. 1 direction at thein high speed. S reel rotates the reverse * This operation winds tape around S reel.
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Capstan motor (M902) belt Change gear Relay gear Fig. 4-15 Mechanism chassis assembly, Drum (M901) Capstan motor (M902) TG1 rol_r Tension regulator bend Gooseneck gear S reel T reel Fig. 4-16.
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4-8. PB _ PAUSE Capstan motor (M902) stops. t I relay gear stop their rotation. 1 Gooseneck stop rotating.gear and T reel i Pinch roller stops rotating. * This operation stops tape running. NOTE • Drum continues rotating without stopping the rotation.
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Capstan motor (M902) Change gear Relay gear Fig. 4-17 Mechanism chassis assembly Drum (M901) Capstan motor (M902) roller g6ar Fig.
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°°.. ............................... oo°o ....... • ............ ............................................ _,,°o ........................ • ............ ................. ...... o,o°oo ° ................... • ........ oo.. ° ..................... • .......... o .... o ..... o_ .............. • ...... ..................................... ,°°o° ...... ..... °°°o°°., °°oo° ...... o.o,°°°o°..ooo_ ............ .... • .......... o..,o°° °.o °°o ..... °°.ooo. • ........ , .
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4-9. STOP _====_ EJECT I Loading motor (M903) rotates. Rotary encoder rotates in the direction of arrow _) via gear A. ITension regulator plates 1 and 2 move in the direction of arrow. I I I Cam gear rotates in the direction I of arrow (_. I J l M slightly in themoves. direction ]I of slider arrow moves (_), then, reservely l direction of arrow I_).
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I Drum (Mg01) rotates, I I Capstan motor (M902) rotates. I Gooseneck gear rotates in the direction of arrow via timing belt, change gear and relay gear. € of arrow to release T reel from T ratchetcondition. moves in the direction 1 braked ! T reel rotates in the direction of arrow. J * This operation winds tape around T reel. r Drum (M901) stops. r II Capstan motor (M902) stops.
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Loading (M903) motor Drum (M901) Capstan motor (M902) Gear © belt Tension reg_ plate 1 Tension regulate plate 2 'inch press plate GL slider Cam gear Change gear / M slider Fig.
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Capstan motor(M902) Drum (M901) Loading motor (M903) HC roller Guide T (TG3) Guide S © TG1 roller Geai Tension reg band RVS arm S T softspring S reel T reel T softclaw T soft gear Drum (M901) Loading motor(M903) Capstanmotor (M902) TG1 Pinch roller S reel T reel Fig.
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® Cassette compartment L Cassette down switch (S002) * EJ arm moves in the direction of arrow(_)to push claw on(_portion in cassette compartment by EJ arm at@portion so that the claw is releases. When released the lock, the whole cassette compartment is lifted up in the direction of arrow(_). i EJ arm * 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.
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SONY. Eng_h Sony Corporation 9..973-80-1-31 Consumer A&V Products Personal Products - 50 - Company Div. 95K0593-1 Printed in U.S.A. @1995.11 Published by Personal A&V Products Div. Quality Engineering Dept.