Video8 B MECHANISM OPERATION MANUAL

Transcription

1 l_!mechansm DECK Video8 B MECHANSM OPERATON MANUAL

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3 CONTENTS 1. Main parts layout diagram Operation of main parts Operation of each part Driving of LS chassis Driving of pinch roller Driving of tension regulator and TG Driving of S reel and S ratchet Driving of T ratchet and T soft gear Operation in each mode Cassette N _ STOP STOP _ PB STOP _ REC STOP _ FF STOP =:===:_ REWND PB =====_ CUE PB _ REVEW.... _ PB _ PAUSE STOP _ EJECT

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

5 2. Operation of main parts Loading motor (M903) rotates. Worm _ha_ and,o ro_os. ] Rotary encoder rotates. f Tension regulator plate 1 moves arrow. in the direction of M slider slides in the direction of arrow f GL direction arm moves of arrow. in the Pinch direction press of plate arrow. moves:in the ' GL direction slider of moves arrow. in the! Loading motor (M903) Rotary encoder Pinch press plate GL slider Tension regulator plate.1 _ GL arm Cam gear LS arm M slider Fig

6 3. Operation of each part 3-1. Driving of LS chassis [ LS arm moves. 1 Cam gear rotates. 1 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! TG4 direction moves of in arrow. the ] 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. TG 1 moves in the - direction of arrow. ] r direction GL ann moves of arrow. in the [ r 4 Pinch roller moves in the [ direction of arrow. GL slider moves in the direction of arrow. Guide S (TG2) and guide T (TG3) further move in the direction of arrow. -6-

7 GL slider _) GL arm " "" Pinch press plate Cam gear_-is Fig. 3-1 Guide S (TG2) Guide T (TG3) Pinch roller TG1 _(_uide rail arm Stopper T i Viewed from the rear. Fig. 3-2 LS chassis assembly -'7-

8 3-2. Driving of pinch roller M slider moves in the direction of arrow. Pinch press plate moves the direction of arrow in 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. -8-

9 press plate M slider Fig. 3-3 Pinch roller_..._ Shaft of pinch -Torsion spring (pinch) _ Pinch press plate

10 3-3. Driving of tension regulator and TG1 Rotary encoder 1rotates. [ TG1 arrow(_as moveslsinchassis the direction moves. of J 1 TG1 shaft touches on(_laortion. [ then it moves in the direction of arrow_. ] 9! Tension and 1 move regulator in_:lirection, plates 2 n! TG1 dire_on further of arrow_. moves in the! Rotary enc_ler further rotates and tension regulator plates 2 and 1 move inodirection shortly after they move ini_) dim_ion. 4 p p i TG1 moves in(_)direction shortly after it moves in_) direction. " TG1 moves in(_iirection. 1 Tension and 1 move regulator in, direction. plates 2-10-

11 Tension regulator plate 2 _'- Rotaryencoder (S901) der Tension regulator/ plate 1 Fig. 3-5 TG1 TG1 moves inthe direction of arrow(_as LS chassis moves. Tension regulator band plate 2 regulator "Tension regulator plate

12 3-4. Driving of S reel and S ratchet Mas cam slidergear moves rotates. in the direction of arrow i 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

13 S! S ratchet shaft LSarm S me S ratchetretease plate S ratchet -i'enslonspring S M slider

14 3-5. Driving of T ratchet and T soft gear + T soft claw and T soft spring move in the direction of arrowo, then, immediately! returned. M slider moves in the direction of arrowl_ in no time followed by movement in the reverse direction. 1 M slider pushes T ratchet on portion and T ratchet moves in the direction of arrow_, then, immediately returned. 1 M slider again moves in the direction of arrow@, i T 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. * Under this condition T reel is locked, allowing no rotation

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

16 Memol 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-

17 4. Operation in each mode 4-1. Cassette N ====_ STOP LS arm moves in the direction of arrow. f m arrow (_) in conjunction with the movement of LS arm boss. Stoppers S and T on guide S (TG2) and [ guide T (TG3), respectively, are released, [ thereby GL slider movesin the direction of arrow, allowing guide S (TG2) and [ guide T (TG3) to move in the direction of [ arrow to be set in place. ] This operation the tape contacts closely with drum (M901). 1 S ratchet moves in the directionof arrow 0, then returned. Loading motor (M903) rotates. [ t Rotary encoder and cam gear rotate via gear A. ; M slider moves firstly in _) direction, subsequently in (_) direction. f TG and TG4 move in the direction of arrow as LS chassis slides.,l miler moves in the direction Pinch of arrow (D. M slider further moves in the direction [ of arrow (_ followed by the movement 1 Pinch arrow@ miler to contactwithcapstanshaft. moves in the direction of T ratchet moves in the direction of arrow (_, { braking T reel followed by immediate releasing. [ Pinch arrow miler 0), then rotatesin in the _versc the direction direction. of ] Loading motor (M903) rotates reversely. f TG1 the direction is slightly of returned arrow. in ] opposite to arrow _, separating from Pinch capstan roller shaft. moves in the direction [ Loading motor (M903) stops. ] - 17-

18 Drum (M901) rotates. ] [ Capstanmotor (M902) retains. through timing belt. l, [ Gooseneck gear moves in the direction ] of arrow to gearinto S reel. ] T reel slightly rotates in the direction of arrow. [ Capstan motor (M902) stops. ] moves in the direction of arrow (1_, [ 7reel followed by immediate releasing. r Capstanmotor direcnomadal nmantadc'n.nnmediatdy (M902)rotates returns in the t reverse the _ F--'_ the S reel directi n slighdy frotates art w" in Gooseneck gear moves in the direction L_. T reel slightly rotates in [ of arrow (_ to gear into T reel. ] - [the direction of arrow. i looseness in tape is corrected. * This operation the Drum (M901) stops. Capstan motor (M902) stops. -18-

19 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 locked cassette so that EJ compartment arm moves in and the, turns ON cassette down switch Cassette down switch (S002)! down switch (S002), drum (M901) and capstan (S002). When motor tumed (M902) ON start thetocassette rotate. EJ arm + Fig. 4-1 Cassette compartment DOWN -]9-

20 Loading motor (M903) HC roller Drum (M901) GL slider Capstan motor (M902) Gear Rotary belt Tension regulator plate plate press Tension regulator plate 2 Cam LS arm Change gear M slider Relay gear Fig. 4-2 Mechanism chassis assembly TG1 Guide S LED Guide T (TG 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

21 Loadingmotor (M903) HC roller Drum GL slider Capstan motor(m902) Gear Rotaryencoder pressplate T (TG3) TG1 Guide S reel Tension regulator band ratchet S ratchet release plate S T softspnng S ratchet LS arm boss Gooseneck gear T softclaw 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! -

22 22.

23 4-2. STOP,====_ PB Loading motor (M903) rotates. 1 Tension regulator plates 1 and 2 [ move in the direction of arrow _)[ in conjunction with the rotation [ of rotary encoder. [ 1 TG1 moves in the direction of [ arrow. * This operation corrects the looseness in tape. Rotary rotate via encoder gear A. and cam gear 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

24 Drum (M901) rotates. T ratchet and S ratchet move in [ each direction of arrows as M slider moves. Capstan motor(m902) rotates in the direction of arrow. l Change gear and relay gear respectively rotate via timing belt. ' r! Br_Lkes released, for allowing T reel andfrees rotation. _ee_ are 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

25 Loading motor (M903) Drum (M901) Capstan motor (M902) Gear Rotary belt Tension regulator plate Tension regulator plate 2 Cam Pinch press plate Change gear M slider Relay gear Fig. 4-5 Mechanism chassis assembly Loading motor (M903) Drum (M90t) Capstan motor (M902) roller TG1 Tension regulator band ratchet gear Fig. 4-6 Mechanism chassis and LS chassis assembly

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

27 4-3. STOP ====_ REC Loading motor!, (M903) rotates. Tension regulator plates 1 and 2 move in the direction of arrow (_)l in conjunction with the rotation ] of rotary encoder. [,L TG1 moves in the direction of arrow. * This operation corrects the looseness in tape. 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

28 Drum (M901) rotates. T ratchet and S ratchet move in each direction of arrows as M slidermoves. Capstan motor(mg02) rotates in the direction of arrow. [ 1 Change gear and relay gear respectively rotate via timing belt. p Brakes released, forallowing T reel and freesrotation. reel are Pinch roller rotates in the direction of arrow to start tape running. direction of arrow, allowing the Gooseneck gear rotates in the rotation of T reel. * This operation winds tape around T reel

29 Loading motor (M903) Drum (M901) Capstan motor (M902) Rotary g belt Tension plate Tension regl 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) miler TG1 Tension regulator band S S ratchet u S Gooseneck gear T Fig. 4-8 Mechanism chassis and LS chassis assembly

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31 4-4. STOP,=====_ FF Loading motor (M903) rotates.! rotate via gear A. Tension regulator plates 1 and 2 move in the direction of arrow (_)1 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. TG altow. moves in the direction of [ * This operation corrects the looseness in tape. Pinch roller moves in the direction of arrow to contact with capstan shaft

32 Drum (M901) rotates. [ T ratchet and S ratchet move in each direction of arrows as M slider moves. Capstan motor (M902) rotates in the direction of arrow at the high speed. 1 Change gear and relay gear respectively rotate via timing 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 T reel. * This operation winds tape around T reel

33 Loading motor (M903) Drum (M901) Capstan motor (M902) Rotary Gear g belt Tension re_ plate 'Tension regulator plate 2 Cam press plate. Change gear M slider Relay gear Fig. 4-9 Mechanism chassis assembly Loading motor (M903) Drum (M901) Capstan motor (M902) Pinch roller TG1 Tension regulator band S ratchet S gear T Fig Mechanism chassis and LS chassis assembly

34 o...., _ o

35 4-5. STOP,_> REWND Loading motor (M903) rotates. Rotary rotate via encoder gear A. and cam gear Tension regulator plates 1 and 2 move in the direction of arrow l in conjunction with the rotation of rotary encoder, i M slider slides in the direction of axrow, allowing pinch press plate to move in the direction of arrow. TG1 moves in the direction of 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. Pinch roller moves in the direction of arrow to contact with capstan shaft

36 Drum (M901) rotates. T ratchet and S ratchet move in each direction of arrows as M slider moves. Capstan in the direction motor (M902) of arrow. rotates respectively rotate via timing Change belt. gear and relay gear 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

37 Loading motor (M903) \ Drum (M901) Capstan motor (M902) Rotary belt Tension reg_ plate 1 Tension regulator plate 2 " Cam plate press M slider Change gear Relay gear Fig Mechanism chassis assembly Loading motor (M903) \ TG1 i Drum (M901) Capstan motor (M902) / / / Pinch roller Tension regulator band RVS arm / S ratchet / S reel \ Gooseneck gear T reel _Tratchet Fig Mechanism chassis and LS chassis assembly

38 4-6. PB _ CUE Capstan at the high motor speed. (M902) rotates Gooseneck gear rotates at the high speed via timing belt, change gear and relay gear. * This operation winds tape around T reel. Pinch roller rotates at the high speed. * This operation allows high speed running for tape

39 Drum (M901) Capstan motor (M902) belt Change gear Relay gear Fig Mechanism chassis assembly Drum (M901) Capstan motor (M902) roller gear Fig Mechanism chassis and LS chassis assembly

40 4-7. PB ====_ REVEW Capstan motor (M902) reversely rotates at the high speed. [! = Timing belt, change gear and relay gear reversely rotates at the high speed. i [TG slightly moves ]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 Sdirection reel rotates the inhigh the reverse 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-

41 Capstan motor (M902) belt Change gear Relay gear Fig Mechanism chassis assembly, Drum (M901) Capstan motor (M902) TG1 rol_r Tension regulator bend S reel Gooseneck gear T reel Fig Mechanism chassis and LS chassis assembly -41 -

42 4-8. PB _ PAUSE Capstan motor (M902) stops. t 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

43 Capstan motor (M902) Change gear Relay gear Fig Mechanism chassis assembly Drum (M901) Capstan motor (M902) roller g6ar Fig Mechanism chassis and LS chassis assembly

44 ..... oo o o....., _,, o o o,o oo... o..o... o... o o oo..... o,... o oo.,... o. oooo... o o... o,o... o o,.. o oo.o.... o,.o,o... o, o... o_......, o o,,,o0o. o... _.... o... oo..., oo..... o.oo o, ooo... o o. o... o..o,... o o...., o o.,... o.o. o ooo..o., o...,o...o... o 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

45 4-9. STOP _====_ EJECT Loading motor (M903) rotates. Rotary encoder rotates in the direction of arrow _) via gear A. Tension regulator plates 1 and 2 move in the direction of arrow. l l TG_ direction si_y of arrow moves _). in tl_e 1 Cam gear rotates in the direction of arrow (_. J Mof slider arrow moves (_), then, slightly reservely in the moves. direction ] r GL slider moves in the direction of arrow, allowing guide S O'G2) and guide T (TG3) to move in each direction of arrows.,l LS arm moves in the direction of arrow to draw out LS chassis. [! Pinch roller moves in the direction of arrow in conjunction with the movement of pinch press plate and along guide T (TG3). TG1 direction largely of arrow movest_. in the TG4 larrow re yes _) in the directi n f Loading motor (M903) stops. M slider moves in the direction opposite to arrow (_, allowing EJ arm to move in the direction of arrow _) so as to unlock cassette compartment. F Loading motor (M903) reversely rotates. Loadingmotor (M903) stops. M slider moves in the direction opposite to arrow (_) allowing EJ ann to move in tht_tirection of arrow (_) so as to turn ON cassette down switch (S002). compartment to lift.it up. * This operation unlocks cassett

46 Drum (Mg01) rotates, Capstan motor (M902) rotates. Gooseneck gear rotates in the direction of arrow via timing belt, change gear and relay gear. of arrow to release T reel from Tbraked ratchet condition. moves in the direction 1 T reel rotates in the direction of arrow. J * This operation winds tape around T reel.! Drum r (M901) stops. r Capstan motor (M902) stops. ] -46-

47 Loading (M903) motor Drum (M901) Capstan motor (M902) Gear belt Tension reg_ plate 1 Tension regulate plate 2 Cam gear 'inch press plate GL slider / M slider Relay gear Change gear Fig Mechanism chassis assembly -4?-

48 Loadingmotor (M903) HC roller Drum (M901) Guide T (TG3) Capstan motor(m902) Guide S TG1 roller Geai Tension reg band RVS arm S S reel T softclaw T soft gear T softspring T reel Loadingmotor(M903) Drum (M901) Capstanmotor (M902) TG1 Pinch roller S reel T reel Fig Mechanism chassis and LS chassis assembly

49 Cassette compartment L * 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(_). Cassette switch (S002) down 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 Cassette compartment UP

50 SONY Sony Corporation Consumer A&V Products Company Personal Products Div Eng_h 95K Printed in Published by Personal A&V Products Div. Quality Engineering Dept.