Removing And Reinstalling The Main Parts; How To Remove The Spindle Motor; How To Remove The Lift Motor; How To Remove The Sled Motor - Sharp MD-MS701H Service Manual

REMOVING AND REINSTALLING THE MAIN PARTS

Remove the mechanism according to the disassembling meth-
ods 1 to 3. (See Page 8.)
How to remove the spindle motor (See Fig. 9-1.)
1. Remove the solder joint (A1) x 1 of flex PWB.
2. Remove the stop (A2) x 3 pcs. and remove the spindle
motor.
How to remove the lift motor (See Fig. 9-2.)
1. Remove the solder joint (B1) x 2 of slide motor lead wire.
2. Remove the stop washer (B2) x 1 pc., and remove the drive
gear (B3) x 1 PC.
3. Remove the screw (B4) x 1, and remove the lift motor.
Note:
Take care so that the motor gear is not damaged.
(If the gear is damaged, noise is raised in search mode.)
How to remove the sled motor (See Fig. 9-3.)
1. Remove the solder joint (C1) x 2 of slide motor lead wire.
2. Remove the screw (C2) x 2, and remove the sled motor.
Note:
Take care so that the motor gear is not damaged.
(If the gear is damaged, noise is raised in search mode.)
How to remove the magnetic head
(See Fig. 9-4.)
1. Remove the screw (D1) x 2 pc.
2. Remove the screw (D2) x1 which connects the magnetic
head to the head relay flex PWB, and remove the soldering
joint (D3) x2 pcs.
Note:
Mount carefully so as not to damage the magnetic head.
How to reinstall the optical pickup unit
(See Fig. 9-5.)
1. Remove the screws (E1) x 1 pcs.
2. Remove the soldering joint (C2) x2 places of flex PWB, and
remove the sled motor.
Shaft
Pickup Unit
Figure 9-5
(E1)x1
ø1.7x2.5mm
(A2)x3
ø1.4x2.8mm
Flexible PWB
solder joint
(A1) x1
Stop Washer
Drive Gear
(B3)x1
(C2)x2
Mecha Flexible PWB
solder joint
Pickup Unit
– 9 –
MD-MS701H/MS702H
Spindle Motor
MDMechanism
Figure 9-1
(B4)x1
ø1.4x2.2mm
(B2)x1
Lift Motor
(B1)x2
Remove the solder joint
Figure 9-2
(C1)x2
ø1.4x1.2mm
Sled Motor
Washer x2
Figure 9-3
(D1)x2
Ø1.4x1.8mm
Magnetic Head
Solder
joint
(D3)x2
(D1)x1
Ø1.4x1.5mm
Figure 9-4