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13

8

two precision screws
(P1.7 

×

 2.2)

7

3

spring (chucking)

6

retainer (disc)

4

precision screw
(P2 

×

 2.2)

5

bracket (CP)

9

Remove the spindle motor (S) sub assy (M102) 
in the direction of the arrow.

2

LSW board

1

precision screw
(P2 

×

 2.5)

2

two screws 
(PTT2 

×

 4)

3

retainer (CHM)

4

ELJ motor 
assy
(chucking) 
(M103)

1

Remove two solders of 
the chucking motor leads (M103).

14

• This set can be assembled in the order shown below.

3-2. OPTICAL PICK-UP COMPLETE ASSY

(Page 14)

3-3. GEAR (LOMINI) / (LOAD CAM) ASSY

(Page 15)

3-4. OPERATION CHECK

(Page 15)

chuck plate

1

Move the lever (LOCK 3A) in the direction of arrow 

A

, 

and return it a little in the direction of arrow 

B

 

from the position where the chuck plate is moved
down to the lower limit.

A

B

3

stop ring 2.0 (E type)

4

tension spring (DH)

2

optical pick-up complete assy
Note: Insert the shaft (A) first.

shaft (A)

15

1

Confirm that the slider moves in the direction of arrow 

C

 to move down

the chuck plate if the gear (LOAD CAM) is rotated in the direction of
arrow 

A

 or the chuck plate moves up and the slider moves in the

direction of arrow 

D

 if the gear is rotated in the direction of arrow 

B

.

gear (LOAD 2)

gear (LOMINI)

marking
Fig. A

chuck plate

2

Attach the gear (LOMINI) at the position 
shown in Fig. A.

shaft (rotary prevention C)

1

Move the lever (LOCK 3A)
fully in the direction of arrow 

B

 

to move the chuck plate up.

B

4

stop ring 1.5 (E type)

3

Attach the gear (LOAD CAM) 
assy with its facing inside.

slit

chuck plate

slider

gear (LOAD CAM) assy

A

B

C

D

16

•

This adjustments is necessary when the system controller (IC201),
variable resistor (RV201), slider (R), slider (L), or chassis (ELV)
was replaced for any repair.

1. Connect this set to the master unit (e.g. MDX-C7970), load a

disc magazine, and place the set vertically as shown below.

2. Connect the regulated power supply to the master unit, and

turn the power on.

3. Press the DISC button on the master unit and select DISC 5.
4. At this time, if the elevator shaft does not position between

comb teeth A and B at addresses 5 and 6 as shown below,
adjust the following.

5. Press repeatedly the DISC + and 

− buttons on the master unit

so that the elevator shafts moves from address 6 to address 5,
or from 5 to 6. At this time, adjust RV201 on the main board
so that the elevator shaft positions smoothly between comb
teeth A and B.

6. Further, place the set horizontally and make same adjustment

as mentioned above.

7. After adjustment at addresses 5 to 6 is finished, check all

operations from addresses 1 to 10 with the set placed vertically
and horizontally respectively to confirm that the elevator shaft
positions in a range between comb teeth A to B.

GND

+

BUS cable

compact disc changer

master unit

CONTROL connector
(CN901)

power supply

(DC 14.4 V)

RV201

comb tooth at address 6

elevator shaft

comb tooth at address 6

comb tooth at address 5

OK

NG

elevator shaft

comb tooth at address 5

A

B

A

B