Hitachi D-RV7 Servicehandbuch Seite 21
Inhaltsverzeichnis
DESCRIPTION
OF
NEW
MECHANISM
Rotary
switch
for
detection
of mechanism
position
(2)
Reel
motor
Plate
(I) To microcomputer
Brake
plate
Head
cam
(4)
Feeding
turntabl
Take-up
turntable
3
Head
base
Pressure
roller
Fig. 16
2.
STOP
MODE
(When changing
from
PLAYBACK
state to STOP state)
The
assist
motor
rotates.
@The rotary switch for detection of mechanismposition
and the
head
cam
turn.
@The plate goesdown through turning of the headcam.
Also the head base and the pressure roller go down.
@The brake plate goes down through turning of the
brake cam, and the brake is actuated.
@The reel motor stops, and the FR gear leavesthe
take-up
turntable.
1.
PLAYBACK
MODE
o The assistmotor rotates.
@The rotary switch for detection of mechanismposition
and the head cam turn.
(Note)
Assist
motor
@The plate goesup through turning of the head cam.
Also the head base and the pressure roller go up.
@The brake plate goesup through turning of the brake
cam, and the brake is disengaged.
@The reel motor rotates, the FR gearshifts toward the
take-up
turntable
side,
and
the
rotates.
Note:
The mode changes according
angle of rotation
of the head carn.
3.
REWIND
MODE
O The assistmotor rotates.
@The rotary switch for detection of mechanismposition
and the
head
cam
turn.
O The brake plate goesup through turning of the brake
cam, and the brake
is released.
@The reel motor rotates, the FR gearshifts toward the
feeding
turntable
side,
and
the
rotates.
— 35
—
4.
FAST
FORWARD
1 The
assist
motor
rotates.
@The rotary switch for detection of mechanismposition
and the
head
cam
turn.
@The brake plate goesup through turning of the brake
cam, and the brake is released.
@The reel motor rotates, the FR gearshifts toward the
take-up
turntable
rotates.
take-up
turntable
to the direction
and
6. REVERSE
MODE
o The assistmotor rotates.
@The rotary switch for detection of mechanismposition
and
the
head cam
turn.
feeding
turntable
3 The plate goes up through
Also the head base and the pressure
@The brake plate goesup through turning of the brake
cam, and the brake is released.
o The reel motor rotates,the FR gearshifts toward the
feeding
turntable
side,
rotates.
REVERSE
MODE
5.
PAUSE
(When changing from PLAYBACK
The
assist
@The rotary switch for detection of mechanismposition
and the
@The plate goesdown halfway through the headcam.
side,
and
the
feeding
turntable
@The reelmotor stops.
(When changing from
o The assistmotor rotates.
@The rotary switch for detection of mechanismposition
and
the
O The plate goesup through the headcam.
@The reel motor rotates.
turning
of the head cam.
@The change-overplate turns through turning of the
roller
go up.
head
came
O The slide switch shifts, the change-overlever rotates,
and the
At the same time, the leaf switch also changes over to
the
reverse
and
the
feeding
turntable
state
— 36 —
D-RV7
MODE
state to PAUSE state)
motor
rotates.
head
cam turn.
PAUSE state to PLAYBACK
state)
head
cam turn.
head
rotates.
side.
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