Sony CCD-TRV21 Owner’s Manual

B MECHANISM
Video8
OPERATION
MANUAL
A18
m MECHANISMDECK
CONTENTS
1. Main parts layout diagram ....................................................................... 4
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
4-1. 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
1. Main parts layout diagram
REC proof switch (S001)
Sensor
Capstan motor
(M902)
Cassette down switch
(S002)
Pinch roller
Drum (M901)
Loading motor (M903)
T reel
LED
S reel
Sensor S
Gooseneck gear
Rotary encoder (S901)
Fig. 1-1
2. Operation of main parts
Loading motor (M903) rotates. ]
[ Worm shaft and gear A rotates. [
[ Rotary encoder rotates. [
moves in the direction of Tension regulator plate 1
arrow.
Worm
Gear
Rotary encoder
Tension regulator
plate 1
[ Cam gear rotates. [
arrow.
M slider slides in the direction of [
direction of arrow.
Pinch press plate moves in the ]
Loading motor
GL slider
f
direction of arrow.
I L arm moves in the [
direction of arrow.
Pinch press plate
GL arm
Cam gear
LS arm
M slider
Fig. 2-1
3. Operation of each part
3-1. Driving of LS chassis
1
LS chassis moves.
I
TG4 moves in the | direction of arrow.
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.
LS arm moves.
r
i
J
Cam gear rotates.
I M slider in
direction after first slightly moving in O
direction.
Pinch press plate moves inOdirection after first slightly moving int_)
direction.
I
TG1 moves m the | direction of arrow.
I
1
!
I
®moves
GL arm moves in the direction of arrow.
I
T (TG3) further move in Guide S (TG2) and guide
the direction of arrow.
Pinch roller moves in theJ
direction of arrow.
!
GL slider moves in the direction of arrow.
I
GL arm
Cam gea=
GL slider
@
Pinch press plate
TG1
LS arm
Fig. 3-1
Guide T
(TG3)
Guide S (TG2)
uide rail
Stopper T
M slider
Pinch roller
arm
Stopper S
IViewed from the rear. I
Fig. 3-2 LS chassis assembly
3-2. Driving of pinch roller
M slider moves in the direction of arrow.
!
I
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
M slider
Pinch press plate
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.
TG1 shaft touches on!_)portion, I then it moves in the direction of
arrow_.
TG1 further moves in the [ direction of arrow(fi).
TG1 moves in(_)direction I shortly after it moves int_) direction.
|
I
1
!
I
!
I
Tension regulator plates 2
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
I
|
!"
I
TG1 moves inl_)direction. I
Tension reg plate 2
Tension regulator plate 1
Rotary encoder
(S901)
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 [
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
1
direction of arrowt_).
* With this operation of S reel
the brake is released.
I
I
,L
Loading...
+ 25 hidden pages