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You can tell which mode the mechanism is currently in by
looking at the codes and marking-lines on the crescent
slide on the underside of the mechanism chassis. The
edge of the crescent mounting is used as the reference
line, as shown in Fig.2-2-2, and the marking-lines and
symbols indicating the mechanism modes are displayed
on the crescent slide, which slides against the edge of the
crescent mounting. The mechanism mode is read off from
the marking-line on the slide crescent which is aligned
with the reference-line on the crescent mounting.
Example: In Fig.2-2-2, marking-line 6 is aligned with the
reference-line on the crescent mounting , so the mecha-
nism is seen to be in FF/REW mode.

Some models are equipped with the SELF-DIAGNOSIS
DISPLAYS function.
Use it as a means of finding out the symptoms and cause
of the error before performing repairs.
For details, refer to the separate service manual for the
respective models.

6: FF/REW

4: BRAKE

5: PLAY/STOP

3: STILL/SLOW

2: IDLER

1: REVIEW

7: INITIAL
   (POWER OFF)

E: EJECT

Crescent slide

Crescent mounting

The edge of the
crescent mounting
is the reference-line

Fig. 2-2-2

(S): Strength    (W): Weakness 

T 

brake 

assembly 

OFF OFF  ON  ON  ON  OFF OFF OFF OFF  ON 

ON/OFF 

S 

brake 

assembly 

OFF  OFF OFF OFF  OFF OFF OFF  OFF  OFF  ON 

ON/OFF 

T soft brake assembly 

OFF 

OFF  OFF 

ON 

ON 

ON 

ON 

OFF 

OFF  OFF  OFF 

S 

soft 

lever 

ON  ON  ON  ON  ON  OFF OFF  OFF  OFF OFF OFF 

BT 

lever 

assembly 

OFF OFF 

OFF 

OFF OFF ON ON  ON  ON ON ON 

BT spring 

OFF 

OFF  OFF  OFF 

OFF 

ON(W) ON(W)  ON(S)  ON(S)  ON(S)  ON(W) 

Pinch roller lever assembly 

UP 

UP 

UP

 

UP/ DOWN/ 

ON OFF  ON  ON OFF OFF

 

DOWN

 UP 

Clutch mounting assembly 

PLAY  PLAY PLAY PLAY  PLAY PLAY PLAY  PLAY  PLAY PLAY  FF 

Load 

lever 

assembly 

UNLO 

UNLO 

UNLO 

LO  LO LO LO  LO  L  LO LO 

Capstan 

brake 

assembly 

OFF  OFF OFF OFF  OFF OFF OFF  ON  OFF OFF OFF 

S and T incline mounting assembly 

LO 

UNLO 

Cleaner 

roller 

assembly 

OFF OFF OFF (ON) (ON) OFF OFF OFF OFF OFF OFF

Principal parts

Mechanism mode

EJECT

IN REW

INITIAL

(POWER OFF)

(LOADING)

(UNLOADING)

REV

IDLER

STILL/SLOW

PLA

Y/STOP

BRAKE

FF/REW

• When fitting the parts of the mechanism, refer to the

‘‘Assembly Notes’’, and proceed in the reverse of dis-
assembly order.

• Dis-assembly and assembly should be carried out in

EJECT mode unless a movement mode is explicitly
specified. EJECT mode is the state in which the cassette
tape has been ejected.

• Clamps are used to prevent parts coming loose. When

removing a clamp, be careful not to force it, as this can
result in damage.

In order to check a movement such as front loading, front
unloading, tape loading, tape unloading, raising/lowering
and pressing the pinch roller, you will need to operate the
loading motor. There are two methods of operating the
loading motor, and these are explained in sections 3-1-1
and 3-1-2. The above movements can also be performed
without operating the loading motor, by following the
method explained in section 3-1-3.

1) Remove the power plug from the socket.
2) Remove the top cover, front cabinet assembly and

bottom cover.

3) Supply a DC voltage in the range 5V between the

MOTOR (+) wire and the MOTOR (–) wire on the CP-1
PWB assembly. To make the loading motor rotate in the
PLAY or FF/REW direction, the positive terminal should
be connected to the MOTOR (+) wire, and the negative
terminal to the MOTOR (–) wire. To make it rotate in the
EJECT direction, connect the positive terminal to the
MOTOR (–) wire, and the negative terminal to the
MOTOR (+) wire.

When rotating the loading motor in the E JECT direc-

tion with a tape slacken, stop the rotation of the loading
motor before beginning front unloading.
Rotate the capstan motor with your hand, wind the
slacked part of the tape, and rotate the loading motor in
the EJECT direction again.

When carrying out front loading, release the

lock by pressing down the tray lock lever 

8

 and the

lid opener lever 

9

 of the cassette mechanism

assembly (shown in Fig. 3-2-2) in the direction of
the arrow.

When the loading motor stops rotating, following

the completion of an operation such as tape loading
or front unloading, switch off the DC voltage supply.

Left side

Bottom side

Motor (+) wire

Motor (-) wire

Front side

Fig. 3-1-1

1) Refer to section 3-2 and install the mechanism unit.
2) Using your finger, turn the loading motor located at the

rear of the mechanism unit. For EJECT, turn the loading
motor in the direction of the arrow on the loading motor.
For PLAY or FF/REW, turn it in the opposite direction.
When rotating the loading motor in the EJECT direction
with a tape slacken, stop the rotation of the loading
motor before beginning front unloading.

Rotate the capstan motor with your hand, wind the

slacked part of the tape, and rotate the loading motor in
the EJECT direction again.

When carrying out front loading, release the lock by

pressing down the tray lock lever 

8

 and the lid opener

lever 

9

 of the cassette mechanism assembly (shown in

Fig. 3-2-2).

          

The arrow which show the direction of EJECT

Loading motor

Fig. 3-1-2

1) Refer to section 3-2 and remove the mechanism unit.
2) Refer to section 3-15 and remove the gear wheel 2.
3) If you turn the main cam anticlockwise, the mechanism

will switch to a mode such as PLAY or FF/REW. To
switch from FF/REW mode to EJECT mode, turn the
main cam clockwise.

1) Remove the top cover, bottom cover and front cabinet

assembly.

2) Unplug the flat cable 

1

 from the VM-1/VP-1 PWB

assembly on the cylinder (drum), and unplug the ACE
head connector 

3

.

3) Remove the screw 

2

, the two screws 

4

, then remove

the VM-1/VP-1 PWB assembly 

5

, lifting it upwards.

The shape of the VM-1/VP-1 PWB assembly and the
bracket varies according to the model.

4) Remove the four screws 

6

 and the two screws 

0

, then

lift up the mechanism unit. The tray 

7

  will stop you

removing the two screws 

6

 on the front, so release the

lock by pressing down the tray lock lever 

8

 and the lid

opener lever 

9

 shown in Fig. 3-2-2, then slide off the

tray 

7

. Move the tray by referring to section 3-1 and

turn the loading motor in the PLAY direction.

6

 Screw

2

 Screw

3

 ACE head

     connector

4

 Screw

1

 Flat cable

6

 Screw

6

 Screw

7

 Tray

0

 Screw

Bracket

VM-1 (VP-1)
PWB
assembly

Fig.3-2-1

9

 Lid opener

     lever

8

 Tray lock

     lever

7

 Tray

Fig.3-2-2

1) Put the VCR into EJECT mode.
2) Remove the two screws 

1

.

3) Lift up the back of the cassette mechanism assembly 

2

slightly, and remove the two hooks 

3

 on the front.

1. The cassette mechanism assembly and the mechanism

chassis should both be fitted in EJECT mode.

2. Check that the two hooks 

3

 have snapped into the

mechanism chassis, and make sure that the two holes

4

 in the cassette mechanism assembly are aligned

with the two dowels 

5

 on the mechanism chassis.

3. Make sure that the big tooth on the pinion gear of the

cassette mechanism assembly slots properly into the
deepest gap in the start rack gear, as shown in Fig. 3-3-
2.

4. When fitting the two screws 

1

, use the torque gauge

screwdriver (J-6082-047-A). Give the screws a tighten-
ing torque of 5 kg/cm.

1

 Screws

1

 Screws

2

 Cassette mechanism assembly

Mechanism
chassis

3

 Hook

3

 Hook

5

Dowel

4

 Hole

4

 Hole

Fig.3-3-1

Ensure correct
interlocking

Ensure correct
interlocking

Pinion gear

Start rack gear

Lock gear

Drive gear

Fig. 3-3-2

1) Refer to section 3-3-1 and remove the cassette mecha-

nism assembly.

2) Remove clamps 

1

 and 

2

, then remove the gear holder

3

.

3) Remove the clamp 

1

, then remove the pinion gear 

4

.

4) Remove the clamp 

2

, then remove the lockgear 

5

.

1. Put the tray in the EJECT mode position before fitting

any parts.

2. Apply grease (SGL-505) to the gear mounting shafts, all

the gear teeth, and the cam part of the drive gear 

6

.

3. Ensure that the drive gear, the lock gear and the pinion

gear interlock correctly, as shown in Fig. 3-3-2.

4. Make sure the clamps 

1

 and 

2

 snap in to the gear

holder 

3

.

Tray

6

 Drive gear

5

 Lock gear

     (grease the outer rim
     of the teeth)

3

 Gear holder

2

Clamp

1

Clamp

Apply
grease

4

 Pinion gear

     (grease
     the outer rim
     of the teeth)

Fig.3-3-3

1) Remove the cassette mechanism assembly, referring to

section 3-1.

2) Remove the two clamps 

1

 and take out the under

frame 

2

, pulling it towards you.

3) Press down the tray lock lever 

3

 and the lid opener

lever 

4

, and loosen the tray 

5

, lifting it away from you.

In this state, press the clamp 

6

 and remove the door

opener lever 

7

.

4) Remove the two clamps 

8

 and take out the stand L 

9

.

Be careful not to exert too much force on the clamps 

8

,

as this could cause damage.

1. Apply grease (SGL-505) to the grooves 

!¡

 on the stand

L, the inside of the hole 

!£

 in the drive shaft 

!™

. and the

mounting hole 

!¢

 in the door opener lever of the stand

R.

2. Before fitting the stand L 

9

, be sure to move the tray

5

 back as far as the EJECT mode position. Put the two

pins 

0

 on the tray 

5

 into the grooves 

!¡

 on the stand

L. Put the drive shaft 

!™

 into the hole 

!£

.

3. Be suretofasten the two clamps 

1

 and theclamp 

6

 on

the stand R, and to fasten the two clamps 

8

 on the

stand L.

9

 Stand L

!¡

 Grooves

!£

 Hole

0

Pins

1

 Clamp

1

 Clamp

!™

 Drive

     shaft

3

 Tray

     lock lever

5

 Tray

6

 Clamp

7

 Door opener

     lever

2

 Under frame

!¢

 Hole

4

 Lid opener

     lever

8

Clamps

Stand R

Fig.3-3-4