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Caution on Disassembly
Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:
1. Take the battery and minidisc out of the unit.
2. When disassembling the machine, be sure to withdraw
the power plug from the socket in advance.
3. When disassemble the parts, remove the nylon band or
wire holder as necessary.
To assemble after repair, be sure to arrange the wires as
they were.
If a screw of different length is fitted to the MD mecha-
nism (the screw of the part to be fitted to the MD
mechanism chassis), it may contact the optical pickup,
resulting in malfunction.
4. When repairing, pay due attention to electrostatic charges
of IC.
STEP
REMOVAL
1
Bottom Cover
1. Battery Cover ......... (A1) x1
2. Screw .................... (A2) x6
2
Top Cabinet
1. Screw ..................... (B1) x4
2. Flexible PWB ........ (B2) x1
3
Main PWB
1. Screw .................... (C1) x1
2. Flexible PWB ........ (C2) x2
3. Soldering ............. (C3) x3
4
Mechanism Unit
1. Lift the back side, and
remove in the arrow
direction.
Note:
Carefully handle the main PWB and flexible PWB.
So as to prevent electrostatic damage of optical pickup after
removing the flexible PWB (*1) for optical pickup from the
connector, wrap the front end of flexible PWB in conductive
aluminum foil.
1
Lower the front side, rotating it.
DISASSEMBLY
PROCEDURE
FIGURE
7-1
7-1
7-2
7-3
INSTALLING THE TOP CABINET
At first insert the
key flex.
The upper cabinet
must not rise.
(A2)x2
ø1x2.5mm
(B1)x2
ø1x2.5mm
Center
Cabinet
Top Cabinet
Pull
(C2)x1*
Flexible PWB for
optical pickup
(C2)x1
2
Front Cabinet
1mm
Bend upward the front cabinet opening, pass the front end of
clamp.
3
Fit together the front and upper cabinets.
– 7 –
MD-S301/S301W
(A2)x2
Bottom Cover
ø1x2.5mm
(A1)x1
Pull
(A2)x2
ø1x2.5mm
(B1)x2
ø1x2.5mm
Figure 7-1
(C2)x1
ø2x3mm
Main PWB
(B2)x1
Pull
Pull
(C3)x3
Pull
Pull
Figure 7-2
Mechanism Unit
Figure 7-3
Clamp
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