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Video8
B MECHANISM
OPERATION MANUAL
A18
m MECHANISM
DECK

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   Summary of Contents for Sony CCD-TRV21E

  • Page 1

    Video8 B MECHANISM OPERATION MANUAL m MECHANISM DECK...

  • Page 3

    CONTENTS 1. Main parts layout diagram ............... 2. Operation of main parts ................Operation each part ................3-1. Driving of LS chassis ..................3-2. Driving of pinch roller ..................3-3. Driving of tension regulator and TG1 ............3-4. Driving of S reel and S ratchet ...............

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    1. Main parts layout diagram REC proof switch (S001) T reel Cassette down switch (S002) Sensor S reel Capstan motor (M902) Sensor S Pinch roller Gooseneck gear Drum (M901) Rotary encoder Loading motor (S901) (M903) Fig. 1-1...

  • Page 5

    2. Operation of main parts Loading motor (M903) rotates. [ Worm shaft and gear A rotates. Rotary encoder rotates. Cam gear rotates. moves in the direction Tension regulator plate 1 arrow. direction of arrow. M slider slides in the direction arrow.

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    3. Operation of each part 3-1. Driving of LS chassis Cam gear rotates. LS arm moves. ® moves M slider direction after first slightly moving in O direction. Pinch press plate moves inOdirection after first slightly moving int_) direction. LS chassis moves. TG1 moves m the | TG4 moves in the | direction...

  • Page 7

    GL slider GL arm •Pinch press plate Cam gea= LS arm M slider Fig. 3-1 Guide T (TG3) Pinch roller Guide S (TG2) uide rail Stopper Stopper I Viewed from the rear. I Fig. 3-2 LS chassis assembly...

  • Page 8

    3-2. Driving of pinch roller 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.

  • Page 9

    Pinch press plate M slider Fig. 3-3 Shaft of pinch roller "-Torsion spring (pinch) press plate Fig. 3-4...

  • Page 10

    3-3. Driving of tension regulator and TG1 Rotary encoder rotates. TG1 moves in the direction of arrowf_)as LS chassis moves. TG1 shaft touches on!_)portion, then it moves in the direction arrow_. Tension regulator plates 2 and 1 move in@direction, Rotary encoder further TG1 further moves in the rotates and tension...

  • Page 11

    Rotary encoder Tension (S901) plate 2 slider Tension regulator plate 1 Fig. 3-5 TG1 _1_(_ TG1 moves in the direction arrow(_as LS chassis moves. Tension regulator band regulator plate 2 ® "-Tension regulator plate 1 Fig. 3-6...

  • Page 12

    3-4. Driving of S reel and S ratchet I M slider moves in the direction of arrow [ as cam gear rotates. 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_).

  • Page 13

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

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    3-5. Driving of T ratchet and T soft gear arrow(_), in no time followed by M slider moves in the direction of [ movement in the reverse direction. ] T soft claw and T soft spring M slider pushes T ratchet only) move in the direction of arrow(_), portion and T ratchet moves in...

  • Page 15

    T soft claw T ratchet slider © T soft g Tension spring T soft spring Fig. 3-9 T reel ratchet "T soft spring T soft 'T soft gear M slider Fig. 3-10...

  • Page 16

    Operation in each mode 4-1. Cassette IN _ STOP Drum (M901) rotates. [ Capstan motor (M902) rotates. Change gear and relay gear rotate through timing belt. T reel slightly rotates in the direction of arrow. Gooseneck gear moves in the direction of arrow _) to gear into S reel.

  • Page 17

    ® Loading motor Drum (M901) Capstan motor (M902) (M903) HC roller GL slider Rotary encoder belt Pinch press Tension reg plate plate 1 Cassette compartment Tension reg plate 2 * When cassette compartment is depressed in the direction of arrow_, claw on@portion in cassette compartment touches EJ arm at portion so that EJ arm moves in the...

  • Page 18

    4-2. STOP Drum (M901) rotates. Loading motor (M903) rotates. [ rotate via gear A. otary encoder and cam gear Tension regulator plates 1 and 2 [ M slider slides in the direction move in the direction of arrow (_)[ of arrow, allowing pinch press in conjunction with the rotation plate to move in the direction of arrow.

  • Page 19

    Drum (M901) Loading motor Capstan motor (M902) (M903) HC roller GL slider Gear © Rotary encoder Pinch press plate T (TG3) Guide S (TG2) Pinch roller reel Tension regulator ratchet band S ratchet release plate S reel T soft spring S ratchet Gooseneck T soft gear...

  • Page 21

    4-3. STOP Drum (M901) rotates. Loading motor (M903) rotates. [ rotate via gear A. otary encoder and cam gear Tension regulator plates 1 and 2 [ M slider slides in the direction move in the direction of arrow (_)] of arrow, allowing pinch press in conjunction with the rotation plate to move in the direction of arrow.

  • Page 22

    Capstan motor (M902) Drum (M901) Loading motor (M903) Gear A ©) Rotary encoder_ _Timing belt Tension regulator plate 1 Tension regulator Pinch press plate 2 plate Cam gear" Change gear M slider Relay gear Fig. 4-5 Mechanism chassis assembly Capstan motor (M902) Drum (M901) Loading motor (M903) Pinchroller...

  • Page 23

    4-4. STOP Drum (M901) rotates. Loading motor (M903) rotates. [ Rotary encoder and cam gear rotate via gear A. Tension regulator plates 1 and 2 ] M slider slides in the direction move in the direction of arrow (_)1 of arrow, allowing pinch press in conjunction with the rotation plate to move in the direction of arrow.

  • Page 24

    Loading motor (M903) Drum (M901) Capstan motor (M902) Gear Rotary belt Tension regt plate 1 Tension regulator Pinch press plate 2 plate Change gear M slider Relay gear Fig. 4-7 Mechanism chassis assembly Capstan motor (M902) Drum (M901) Loading motor (M903) Pinch roller Tension regulator band...

  • Page 25

    Loading motor (M903) Drum (M901) Capstan motor (M902) Gear Rotary encoder belt Tension reg plate 1 Tension reg plate 2 press plate Cam g Change gear M slider Relay gear Fig. 4-9 Mechanism chassis assembly Loading motor (M903) Drum (M901) Capstan motor (M902) Pinch roller Tension regulator...

  • Page 26

    4-5. STOP REWIND Drum (M901) rotates. Loading motor (M903) rotates. [ Rotary encoder and cam gear / rotate via gear A. Tension regulator plates 1 and 2 [ M slider slides in the direction move in the direction of arrow (_)[ of arrow, allowing pinch press in conjunction with the rotation plate to move in the direction...

  • Page 27

    Loading motor (M903) Drum (M901) Capstan motor (M902) © Rotary g belt Tension regulator plate 1 Tension regulator plate 2 ch press plate Cam g M slider Change gear Relay gear Mechanism chassis assembly Fig. 4-1 1 Capstan motor (M902) Loading motor (M903) Drum (M901)

  • Page 28

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

  • 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

    4-7. REVIEW rotates at the high speed. Capstan motor (M902) reversely relay gear reversely rotates at the I Timing belt, change gear and high speed. [ TG1 slightly moves [ I Gooseneck gear moves in the [ in the direction of direction of arrow to contact with S reel, then, rotates in the...

  • Page 31

    Capstan motor (M902) belt Change gear Relay gear Fig. 4-15 Mechanism chassis assembly Drum (M901) Capstan motor (M902) Pinch roller Tension regulator band Gooseneck gear S reel T reel Fig. 4-16 Mechanism chassis and LS chassis assembly...

  • Page 32

    4-8. PB_----_PAUSE Capstan motor (M902) stops. Timing belt, change gear and relay gear stop their rotation. Gooseneck gear and T reel Pinch roller stops rotating. stop rotating. * This operation stops tape running. NOTE • Drum continues rotating without stopping the rotation.

  • Page 33

    Capstan motor (M902) Change gear Relay gear Fig. 4-17 Mechanism chassis assembly Drum (M901) Capstan motor (M902) Pinch roller Gooseneck gear reel Fig. 4-18 Mechanism chassis and LS chassis assembly...

  • Page 34

    Loading motor Drum (M901) Capstan motor (M902) (M903) Gear Rotary Timing belt Tension regulator plate 1 Tension regulator Pinch press plate 2 plate GL slider Cam gear Change gear M slider Relay gear Fig. 4-19 Mechanism chassis assembly...

  • Page 36

    Drum (M901) Capstan motor (M902) Loading motor (M903) HC roller Guide T (TG3) Guide nch roller Gear Tension reg band Gooseneck gear T soft spring r reel S reel T soft claw T soft gear Capstan motor (M902) Drum (M901) Loading motor (M903)

  • Page 37

    ® Cassette compartment arrow(_)to push claw on(_)portion * EJ arm moves in the direction in cassette compartment by EJ arm at@portion so that the claw is releases. When released lock, the whole cassette compartment is lifted up in the direction of arrow(_).

This manual also for:

Ccd-trv21, Ccd-trv21pk

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