Removing And Reinstalling The Main Parts - Sharp MD-MT80W(S) Service Manual

REMOVING AND REINSTALLING THE MAIN PARTS

Remove the mechanism according to the disassembling meth-
ods 1 to 4. (See Page 14.)
How to remove the spindle motor (See Fig. 15-1.)
1. Remove the solder joints (A1) x 4 of flexible PWB.
2. Remove the screws (A2) x 3 pcs., and remove the spindle
motor.
How to remove the Lift motor (See Fig. 15-2.)
1. Remove the solder joints (B1) x 2 of lift motor lead wire.
2. Remove the screw (B2) x 1 pc., and remove the lift motor.
Note:
Take care so that the motor gear is not damaged.
(If the gear is damaged, noise is caused.)
How to remove the sled motor (See Fig. 15-3.)
1. Remove the stop washer (C1) x 1 pc., and remove the drive
gear (C2) x 1 pc.
2. Remove the screws (C3) x 2 pcs.
3. Remove the solder joints (C4) x 2 of flexible PWB., and
remove the sled motor.
Note:
Take care so that the motor gear is not damaged.
(If the gear is damaged, noise is caused.)
How to remove the magnetic head (See Fig. 15-4.)
1. Remove the screws (D1) x 2 pcs. of the magnetic head and
the optical pickup, and remove the solder joints (D2) x 2 pcs.
of the head flexible plate.
Note:
Mount carefully so as not to damage the magnetic head.
How to reinstall the optical pickup
(See Fig. 15-5.)
1. Remove the screw (E1) x 1 pc., and remove the spring.
2. Slowly raise the optical pickup.
Optical Pickup Unit
Figure 15-5
(E1) x1
ø1.7 x3mm
Spring
MD Mechanism
– 15 –
MD-MT80W/90W/90/90C
(A2) x3
ø1.4 x2.5mm
Spindle
Motor
Figure 15-1
(B2) x1
ø1.4 x4.5mm
Lift Motor
Figure 15-2
Stop Washer
(C1)x1
Drive Gear
(C2)x1
Figure 15-3
(D1) x2
ø1.4 x1.8mm
Figure 15-4
Mechanism Flexible
PWB Solder joints
(A1)x4
MD Mechanism
Remove the
Solder joints
(B1)x2
MD Mechanism
(C3) x2
ø1.4 x1.2mm
Sled Motor
Mechanism Flexible
PWB Solder joints
(C4)x2
MD Mechanism
Magnetic head
Solder joints
(D2)x2
MD Mechanism