Sanyo DTL4800 Basic Service Technical Information page 13

Real time video cassette recorder mechanism
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3-5-2. CYLINDER (DRUM) UNIT (See Fig.3-5-5)
1) Put the mechanism into EJECT mode.
2) Refer to section 3-2 and remove the VM-1/VP-1 PWB
assembly
3) Refer to section 3-4 and remove the cleaner lever.
4) Remove the three screws
scratch or soil the tape path surface of the cylinder
(drum), lift the cylinder mounting
ing it raised.
ASSEMBLY NOTES:
1. Apply grease (VHJ-0100) to the rails (front and rear)
of the cylinder mounting
come in contact with the S and T incline mounting
assembly).
2. Align the two dowels
with the two holes
Check that connector is inserted in the CP-1 PWB
assembly.
3. After assembly, clean the tape path surface of the
cylinder (drum).
4. After replacing the cylinder unit, do the tape path
adjustment as instructed in section 4-3, and do the
switching position adjustment of the servo circuit.
Screws
Rails
Holes
. Taking care not to
slightly, and keep-
(grease the parts which
on the mounting cylinder
on the mechanism chassis.
Screw
Cylinder
mounting
Rails
Dowels
Connector on the
CP-1 PWB assembly
Fig.3-5-5
3-5-3. CYLINDER MOTOR (ROTOR AND STATOR)
(See Fig.3-5-6)
1) Refer to section 3-5-2 and remove the cylinder unit.
2) If you have removed the mechanism unit, remove the
screw
and remove the cylinder earth assembly
3) Remove the two screws
spacer
.
4) Remove the three screws
ASSEMBLY NOTES:
1. When fitting the rotor
beside the triangular mark on the rotor
hole
in the rotor disk.
2. When fitting the screws
gauge screwdriver (VHJ-0014). give the screws a
tightening torque of 3 kg/cm.
3. Align the dowels
with the holes
4. If you have removed the cylinder unit, after assembly,
do the tape path adjustment as instructed in section
4-3, and do the switching position adjustment of the
servo circuit.
Screws
Rotor
Stator
Spacer
Hole (use for alignment
when fitting the rotor)
–13–
, the rotor
and the stator
, align the long hole
and
, use the torque
on the cylinder earth assembly
in the chassis.
Long hole (used for
alignment when fitting
the rotor)
Screws
Screws
Dowels
Holes
.
and the
.
-
- with the
Cylinder
earth
assembly
Fig.3-5-6

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