DOWNLOAD Sony MDS-DRE1 Service Manual ↓ Size: 6.56 MB | Pages: 79 in PDF or view online for FREE

– 9 –

 Follow the disassembly procedure in the numerical order given.

4

two connectors
(CN801, 802)

3

Open the upper cabinet
section in arrow direction.

1

five screws
(BV3 

× 

10)

1

three screws
(BV3 

× 

10)

2

two screws
(BV3 

× 

8)

6

upper cabinet section

4

two connectors
(CN701, 751)

5

flat wire
(CN902)

3

two screws
(BVTP3 

×

 8)

2

two flat wires
(CN4, 5)

3

two screws
(BVTP3 

×

 8)

1

connector
(CN3)

4

MD assembly

– 10 –

2

two screws
(B2.6 

×

 18)

1

Rotate the pully (BD) in arrow 
direction 

A

 and move the slider 

assembly in arrow direction 

B

.

2

two screws
(B2.6 

×

 18)

3

two collars

4

insulator (MD)

4

two insulators (MD)

5

compression spring

6

bracket (MD)

5

compression spring

4

insulator (MD)

3

two collars

5

two compression 
springs

A

B

slider
assembly

claw 

B

C

A

B

4

Move the claw 

C

 on the slider 

up to the base groove in arrow 
direction 

A

, and raise it in arrow 

direction 

B

 to remove.

claw 

A

claw 

C

1

Disengage a coil spring
from the claw 

A

.

2

Disengaging the claw 

B

, 

raise the lever (SLM)
upwards to remove.

3

Rotate the pully (BD) in arrow direction 

C

.

Base groove

– 11 –

4

two screws
(B2.6 

×

 5)

1

screw
(BV3 

×

 6)

1

two screws
(BV3 

×

 6)

5

connector
(CN192)

6

loading motor
assembly

2

base unit

3

belt

B

A

C

3

Move the slider assembly in 
arrow direction 

B

, and lock it

to the lever (SLM).

1

Rotate fully the lever (SLM) 
in arrow direction 

A

.

2

Rotate the pully (BD) 
in arrow 

C

 direction.

– 12 –

Eight test modes are selected by turning the 

[AMS]

 knob.

Function

[AMS]

 knob

[ENTER/YES]

 button

[EDIT/NO]

 button

Press 

[   ]

 (POWER) switch while pressing the 

[AMS]

 knob to turn POWER ON.

Press the 

[REPEAT]

 button. Unplug the power plug from an outlet.

All operations are performed using the 

[AMS]

 knob, 

[ENTER/YES]

 button, and 

[EDIT/NO]

 button.

The functions of these buttons are as follows.

Contents

Changes parameters and modes

Proceeds onto the next step. Finalizes input.

Returns to previous step. Stops operations.

Contents

Temperature compensation offset adjustment

Laser power adjustment

Traverse adjustment

Focus bias adjustment

Focus bias check

Continuous playback mode

Continuous recording mode

Non-volatile memory mode *

Display

TEMP ADJUS

LDPWR ADJUS

EFBAL ADJUS

FBIAS ADJUS

FBIAS CHECK

CPLAY MODE

CREC MODE

EEP MODE

For detailed description of each adjustment mode, refer to 5. Electrical Adjustments.
If a different adjustment mode has been selected by mistake, press the 

[EDIT/NO]

 button to exit from it.

* The EEP MODE is not used in servicing. If set accidentally, press the 

[EDIT/NO]

 button immediately to exit it.

1. Entering the continuous playback mode

1 Set the disc in the unit (either MO or CD).(MO: Recordable disc, CD: Disc for playback only)
2 Rotate the 

[AMS]

 knob and display “CPLAY MODE”.

3 Press the 

[ENTER/YES]

 button to change the display to “CPLAY IN”.

4 When access completes, the display changes to “C1 = 

 AD = 

”.

The “ ” displayed are arbitrary numbers.

2. Changing the parts to be played back

1 Press the 

[ENTER/YES]

 button during continuous playback to change the display to “CPLAY MID”, “CPLAY OUT”.

When pressed another time, the parts to be played back can be changed.

2 When access completes, the display changes to “C1 = 

 AD = 

”.

 The “ ” displayed are arbitrary numbers.

3. Ending the continuous playback mode

1 Press the 

[EDIT/NO]

 button. The display will change to “CPLAY MODE”.

2 Press the  

[   EJECT]

  button and remove the disc.

The playback start addresses for IN, MID, and OUT are as follows.

IN

40h cluster

MID

300h cluster

OUT

700h cluster

§

U