Sony CCD TRV21 User Manual VIDEO CAMERA RECORDER Manuals And Guides 98020236

SONY 8mm Camcorder Manual 98020236 SONY 8mm Camcorder Owner's Manual, SONY 8mm Camcorder installation guides

User Manual: Sony CCD-TRV21 CCD-TRV21 SONY VIDEO CAMERA RECORDER - Manuals and Guides View the owners manual for your SONY VIDEO CAMERA RECORDER #CCDTRV21. Home:Electronics Parts:Sony Parts:Sony VIDEO CAMERA RECORDER Manual

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Video8

B MECHANISM

OPERATION MANUAL

A18

mMECHANISMDECK

CONTENTS

1. Main parts layout diagram ....................................................................... 4

2. Operation of main parts ............................................................................ 5

3. Operation of each part .............................................................................. 6

3-1. Driving of LS chassis ......................................................................................... 6

3-2. Driving of pinch 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

1. Main 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

2. Operation of main parts

Tension regulator plate 1

moves in the direction of

arrow.

Loading motor (M903) rotates. ]

[ Worm shaft and gear A 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

3. Operation of each part

3-1. Driving of LS chassis

1

I

i

TG4 moves in the |

direction of arrow. J

LS arm moves.

r

LS chassis moves.

Cam gear rotates.

!

I M slider in ®moves

direction after first

slightly moving in O

direction.

Pinch press 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 move in

the direction of arrow.

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

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.

I

I

Pinch press plate

M slider

Fig. 3-3

Shaft of pinch roller

"-Torsion spring (pinch)

press plate

Fig. 3-4

3-3. Driving of tension regulator and TG1

Rotary encoder rotates. [

|

TG1 moves in the direction of I

arrowf_)as LS chassis moves. I

TG1 shaft touches on!_)portion, I

then it moves in the direction of 1

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

Tension reg

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

3-4. Driving of S reel and S ratchet

I M slider moves in 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.

Fig. 3-7

S reel

S ratchet release plate

Tension spring

S ratchet (_)

S ratchet shaft _.

M slider

Tension spring

Fig. 3-8

3-5. Driving of T ratchet and T soft gear

T soft claw and T soft spring

move in the direction of arrow(_),

then, immediately returned.

M slider moves in the direction of [

arrow(_), in no time followed 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.

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

11 Operation in each mode

4-1. Cassette IN _ STOP Drum (M901) rotates. [

f

H

[ LS ann moves in the direction of arrow. [

II

LS chassis moves in the direction of I

I

arrow I_)in conjunction with the I

movement of LS arm boss.

,

Stoppers S and T on guide S (TG2) and I

guide T (TG3), respectively, are released, I

thereby GL slider movesin the direction I

of arrow, allowing guide S (TG2) and I

guide T (TG3) to move in the direction of I

arrow to be set in place. I

This operation the tape contacts

closely with drum (M901).L

I S ratchet moves in the

direction of arrow ®, then

returned.

TG1 is slightly returned inthe direction of arrow ®.

I Loading motor (M903) rotates. I

Rotary encoder and cam gear

rotate via gear A.

M slider moves firstly in ® direction, I

subsequently in i_) direction. I

f

TG1 and TG4 move in the direction of

arrow as LS chassis slides.

IPinch roller moves in the direction

of arrow _. !

M slider further moves in the direction 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.

iLoadingmotor(M903) stops.,, I

T ratchet moves in the direction of arrow f_), I

[braking T reel followed by immediate releasing.J

Capstan motor (M902) rotates. [

Change gear and relay gear rotate

through timing belt.

Gooseneck gear moves in the direction I

of arrow _) to gear into S reel. [

i

[ Capstan motor (M902)stops. J

T reel slightly rotates in thedirection of arrow.

r

Capstan motor (M902) rotates in the reverse _ S reel slightly rotates in I

direction and immediately returns to the -Ithe direction of arrow. I

normal rotation. I

Gooseneck gear moves in the direction L_.__T reel slightly rotates in [

i

of arrow q) to gear into T reel. [ _[the direction of arrow. I

l * This operation the

looseness in tape is

corrected.

[ Capstan motor (M902)stops. [Drum (M901) stops. [

®

Cassette compartment

* 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

direction of arrowO. This operation islocked cassette compartment and

, turns ON cassette down switch

'_ (S002). When turned ON the cassette

Cassette down / down switch (S002), drum (M901) 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) (TG',

LED

Pinch roller

TG4

switch (S002)

reel

r ratchet

proof

switch (S001)

S reel T soft claw T soft spring

Gooseneck gear T soft gear

Fig. 4-3 LS chassis assembly

4-2. STOP PB

Loading motor (M903) rotates. [

1

I otary encoder and cam gear I

rotate via gear A.

IDrum (M901) rotates. I

Tension regulator plates 1 and 2 [

move in the direction of arrow (_)[

in conjunction with the rotation I

of rotary encoder. [

,!

ITG1 moves in the direction ofarrow. I

* 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.

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 inthe 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.

Gooseneck gear rotates in the

direction of arrow, allowing the

rotation of T reel.

* This operation winds tape

around T reel.

Loading motor Capstan motor (M902)

(M903) Drum (M901)

HC roller GL slider

Gear

Rotary encoder ©Pinch press plate

M

TG1

Guide S (TG2)

Tension regulator

band

S ratchet release

plate

S ratchet S reel /@z_ T soft spring

Gooseneck

gear

LS arm boss T soft claw

T(TG3)

Pinch roller

reel

ratchet

Tsoft 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

4-3. STOP REC

Tension regulator plates 1 and 2 [

move in the direction of arrow (_)]

in conjunction with the rotation [

of rotary encoder. [

TG1 moves in the direction of

arrow.

* This operation corrects the

looseness in tape.

Loading motor (M903) rotates. [

I otary encoder and cam gearrotate 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.

-- 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 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.

Loading motor (M903)

\

Gear A

Rotary encoder_

J

Tension regulator

plate 1 J

Tension regulator

plate 2 J

Cam gear"

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

Sratchet

S _el

Gooseneck gear

T reel

Fig. 4-6 Mechanism chassis and LS chassis assembly

4-4. STOP FF

I

Loading motor (M903) rotates. [

Rotary encoder and cam gear I

|

rotate via gear A. I

[Drum (M901) rotates. I

Tension regulator plates 1 and 2 ]

move in the direction of arrow (_)1

in conjunction with the rotation [

of rotary encoder. [

TG1 moves in the direction of ]

arrow.

* T lai_ °i_ration co_ects tt_e

looseness in tape.

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

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 and relay gear

respectively rotate via timing

belt.

Gooseneck gear rotates in the

direction of arrow, allowing the

rotation of Treel.

*This operation winds tape

around T reel.

Loading motor (M903) Drum (M901) Capstan motor (M902)

Gear

Rotary belt

Tension regt

plate 1

Tension 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

Loading motor (M903) Drum (M901) Capstanmotor (M902)

Gear

Rotary encoder

Tension 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

4-5. STOP REWIND

Loading motor (M903) rotates. [

Rotary encoder and cam gear /

/

rotate via gear A. J

Drum (M901) rotates.

Tension regulator plates 1 and 2 [

move in the direction of arrow (_)[

in conjunction with the rotation

of rotary encoder.

TG 1 moves in the direction of

arrow.

M slider further moves in the

direction arrow, allowing RVS

arm to move in the direction

arrow.

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.

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 arereleased, allowing free rotation.

Capstan motor (M902) rotates

in the direction of arrow.

r

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 S reel.

* This operation winds tape

around S reel.

Loading motor (M903) Drum (M901) Capstan motor (M902)

Rotary

Tension regulator

plate 1

Tension regulator

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

Sratchet

Gooseneck gear

I

S reel T reel

Fig. 4-12 Mechanism chassis and LS chassis assembly

4-6. PB _ CUE

!

Capstan motor (M902) rotates [

at the high speed. 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.

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

4-7. PB REVIEW

[TG1 slightly moves [

[in the direction of I

arrow.

Capstan motor (M902) reversely [

rotates at the high speed.

ITiming belt, change gear and I

relay gear reversely rotates at the

high speed.

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 reversedirection 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.

Capstan motor (M902)

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

4-8. PB_----_PAUSE

Capstan motor (M902) 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

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

Loading motor

(M903) 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

Guide S

Loading motor

(M903) HC 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

®

Cassette compartment

i * 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

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