Read Sharp CD-MD3000 (serv.man12) Service Manual online
CD-MD3000H/CD-MD3000W
– 20 –
REMOVING AND REINSTALLING THE MAIN PARTS
MD MECHANISM SECTION
For details about the procedure to remove the MD mechanism
from the main unit, refer to the Disassembly Procedure, Steps
1-7 in the main unit and also the MD section.
(Referring to page18)
from the main unit, refer to the Disassembly Procedure, Steps
1-7 in the main unit and also the MD section.
(Referring to page18)
Caution:
After pulling out the optical pickup connector, wrap the end
of the connector in conductive aluminium foil to prevent the
optical pickup from being destroyed by static electricity.
of the connector in conductive aluminium foil to prevent the
optical pickup from being destroyed by static electricity.
How to remove the magnetic head
(See Fig. 20-1)
(See Fig. 20-1)
1. Remove the screws (A1) x 1 pc.
Caution:
Take utmost care so that the magnetic head is not damaged
when it is mounted.
when it is mounted.
Figure 20-1
How to remove the MD loading motor PWB/MD
loading motor
(See Fig. 20-2)
loading motor
(See Fig. 20-2)
1. Remove the screw (B1) x 1 pc.
2. Remove the Hoock (B2) x 3 pcs., and remove the MD
2. Remove the Hoock (B2) x 3 pcs., and remove the MD
Loading PWB.
3. Remove the screw (B3) x 2 pcs., and remove the MD
Loading motor.
How to remove the MD sled motor/optical pickup
(See Fig. 20-3)
(See Fig. 20-3)
1. Remove the screws (C1) x 3 pcs., and remove the MD sled
motor.
2. Remove the optical pickup.
Caution:
Be careful so that the gear is not damaged.
(The damaged gear emits noise during searching.)
(The damaged gear emits noise during searching.)
Figure 20-2
(A1)x1
ø1.7x5mm
MD Mechanism
Magnetic Head
(B3)x2
ø1.7x3mm
ø1.7x3mm
(B1)x1
ø1.7x6mm
ø1.7x6mm
(B2)x2
(B2)x1
MD Loading Motor
MD Loading Motor
PWB
PWB
(C1)x2
ø1.4x4.5mm
ø1.4x4.5mm
(C1)x1
ø1.4x5mm
Optical
Pickup
Pickup
MD Sled Motor
Washer
MD Mechanism
Switch PWB
Switch PWB
Figure 20-3
– 21 –
CD-MD3000H/CD-MD3000W
Figure 21-1
How to remove the MD spindle motor
(See Fig. 21-1)
(See Fig. 21-1)
1. Remove the screws (D1) x 3 pcs., and remove the MD
spindle motor.
Caution:
Be careful so that the gear is not damaged.
(The damaged gear emits noise during searching.)
(The damaged gear emits noise during searching.)
(D1)x3
ø1.4x3mm
MD Spindle Motor
CD MECHANISM SECTION
Perform steps 1 to 7 of the disassembly method to remove the
CD mechanism. (See page 18.)
CD mechanism. (See page 18.)
Note:
After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the
front end of connector remove to protect the optical pickup
from electrostatic damage.
After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the
front end of connector remove to protect the optical pickup
from electrostatic damage.
How to Remove the pickup (See Fig. 21-2.)
1. Remove the screws (A1)x 2 pcs., to remove shaft (A2)x 1
pc.
2. Remove stop washer (A3)x 1 pc., to remove gear (A4)x 1 pc.
3. Remove the pickup.
3. Remove the pickup.
(A1) x1
ø2.6 x6mm
ø2.6 x6mm
CD
Mechanism
Mechanism
Stop Washer
(A3) x1
(A3) x1
Gear
(A4) x1
(A4) x1
Shaft
(A2) x1
(A2) x1
Pickup
(A1) x1
ø2.6 x6mm
ø2.6 x6mm
Figure 21-2
Figure 21-3
How to Remove the tray motor/main cam motor
(See Fig. 21-3.)
(See Fig. 21-3.)
1. Remove the screws (B1)x 4 pcs., to remove the CD PWB.
2. Remove the (1) front top plate, (2) changer box, left/right
2. Remove the (1) front top plate, (2) changer box, left/right
and (3) disc trays 1~6. After that, disassemble as shown in
the figure.
the figure.
3. Remove the screws (B2)x 4 pcs.
4. Remove the tray motor and main cam motor.
4. Remove the tray motor and main cam motor.
CD CHANGER MECHANISM SECTION
Perform steps 1 to 5 of the disassembly method to remove the
CD changer mechanism. (See page 18.)
CD changer mechanism. (See page 18.)
Main Cam Motor
Tray Motor
CD PWB
(1) Front Top Plate
(2) Changer Box,
Left
Left
(2)Changer Box,
Right
Right
(3) Disc Tray,1~6
CD Changer Mechanism
(B1)x4
ø3x10mm
(B2)x4
ø2.6x4mm
Note:
The parts of (1), (2) and (3) correspond to the drawing Nos.
117, 102, 103 and 108 to 113 of the CD change mechanism
disassembly drawing.
Remove the screws of 117, 102 and 103, and the parts of (1),
(2) and (3) will be ready for removal and the screws of the tray
motor and main cam motor will be visible.
The parts of (1), (2) and (3) correspond to the drawing Nos.
117, 102, 103 and 108 to 113 of the CD change mechanism
disassembly drawing.
Remove the screws of 117, 102 and 103, and the parts of (1),
(2) and (3) will be ready for removal and the screws of the tray
motor and main cam motor will be visible.
CD-MD3000H/CD-MD3000W
– 22 –
Figure 22-1
Figure 22-2
Figure 22-3
Figure 22-4
TAPE MECHANISM SECTION
Perform steps 1 to 4 and 9 of the disassembly method to
remove the tape mechanism.
remove the tape mechanism.
How to remove the record/playback and erase
heads (See Fig. 22-1)
heads (See Fig. 22-1)
playback head and three-dimensional head of the erasing
head can be removed.
head can be removed.
How to remove the pinch roller (See Fig. 22-2)
1. Carefully bend the pinch roller pawl in the direction of the
arrow <A>, and remove the pinch roller (B1) x1 pc., in the
direction of the arrow <B>.
direction of the arrow <B>.
Note:
When installing the pinch roller, pay attention to the spring
mounting position.
When installing the pinch roller, pay attention to the spring
mounting position.
How to remove the belt (See Fig. 22-3)
1. Remove the motor.
2. Remove the main belt (C1) x 1 pc., from the motor side.
3. Remove the FF/REW belt (C2) x 1 pc.
2. Remove the main belt (C1) x 1 pc., from the motor side.
3. Remove the FF/REW belt (C2) x 1 pc.
How to remove the motor (See Fig. 22-4)
1. Remove the belt.
2. Remove the screws (D1) x 2 pcs., to remove the motor.
2. Remove the screws (D1) x 2 pcs., to remove the motor.
Pinch
Roller
(B1)x1
Roller
(B1)x1
<A>
Pinch
Roller
Pawl
Roller
Pawl
Pull
<B>
Pull
(Left)
<A>
Pinch
Roller
Pawl
Roller
Pawl
Pull
<B>
Pull
(Right)
(A1)x2
Ø2 x 6mm
Ø2 x 6mm
Record/
Playback
Head
Playback
Head
Erase
Head
Head
How to remove the control panel motor
(See Fig. 22-5)
(See Fig. 22-5)
1. Remove the control panel.
2. Remove the screws (E1) x 6 pcs., to remove the CD changer
2. Remove the screws (E1) x 6 pcs., to remove the CD changer
door panel.
3. Remove the screws (F1) x 2 pcs., to remove the control
panel motor.
FRONT PANEL SECTION
Perform steps 1 to 4 of the disassembly method to remove the
front panel.
front panel.
CD Changer
Door Panel
Door Panel
CD Changer
Door Panel
Door Panel
Control
Panel
Motor
Panel
Motor
Gear Box A
(E1)x1
ø2.6x10mm
ø2.6x10mm
(E1)x3
ø2.6x10mm
ø2.6x10mm
(E1)x2
ø2.6x10mm
ø2.6x10mm
(F1)x2
ø2x5mm
ø2x5mm
Motor PWB
Gear Box B
Control Panel
Figure 22-5
Main Belt
(C1)x1
(C1)x1
FF/REW Belt
(C2)x1
(C2)x1
Motor
(D1)x2
Ø 2.6 x 5mm
Ø 2.6 x 5mm
Motor
