Service manual

MD-R3
– 9 –
Figure 9-3
Figure 9-1
Figure 9-2
Figure 9-4
Figure 9-5
CD
Servo PWB
CD Changer PWB
(Remove 4 soldering joints).
Tray
Switch
PWB
CD Changer
Block
(M1)x3
ø3x10mm
(N1)x2
ø2.6x10mm
(P1)x1
ø2x7mm
(M2)x3
(N2)x2
(Q1) x2
ø2 x7mm
(Q5) x1
ø2.6 x12mm
(Q8) x4
ø2.6 x10mm
(Q3) x1
(Q2) x1
(Q6) x1
(Q7) x1
Pawl
Disc Tray 1
Disc Tray 2
Disc Tray 3
CD
Mechanism
Push .
Spring
Turn clockwise the
main cam to raise the
CD mechanism up to
the uppermost position.
(Q4) x3
Press in turns the arrow 
parts, starting with the 
uppermost one, to 
withdraw the disc trays
1
2
3
Normal state

Disc Tray 1
(After drawing out the disc trays 1, 2, and 3, turn 
over the mechanism unit, push two pawls, and
remove successively the three disc trays from the 
mechanism unit, starting with the disc tray 3. 
Thereby the CD mechanism shown in the right
figure can be removed.)
Push the pawl of disc tray 
with a proper screwdriver.
Disc Tray 2
Disc Tray 3

Pawl
Pawl
Back surface
Shield Case
(R1) x 2
ø3 x 6mm
(R1) x 2
ø3 x 6mm
MD Mechanism
Unit
MD Main PWB
(S2)x1
Pull
Pickup Flexible 
PWB (*1)
Frame
(S3) x 1
(S2) x 3
(S2) x 1
(S1) x 4
ø1.7 x 3mm
(*1) After disconnecting the optical 
 pickup flex PWB from the 
 connector wrap the front end of 
 flex PWB in conductive aluminium 
 foil so as to prevent electrostatic 
 damage of optical pickup.
(T1)x4
ø1.7x8.9mm
MD Mechanism