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Model Name Using Similar Mechanism

CDX-L410

CD Drive Mechanism Type

MG-393XA-121//Q

Optical Pick-up Name

KSS-720A

AEP Model

UK Model

Signal-to-noise ratio

90 dB

Frequency response

10 – 20,000 Hz

Wow and flutter

Below measurable limit

FM
Tuning range

87.5 – 108.0 MHz

Aerial terminal

External aerial connector

Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity

8 dBf

Selectivity

75 dB at 400 kHz

Signal-to-noise ratio

66 dB (stereo),
72 dB (mono)

Harmonic distortion at 1 kHz

0.6% (stereo),
0.3% (mono)

Separation

35 dB at 1 kHz

Frequency response

30 – 15,000 Hz

MW/LW
Tuning range

MW: 531 – 1,602 kHz
LW: 153 – 279 kHz

Aerial terminal

External aerial connector

Intermediate frequency 10.7 MHz/450 kHz
Sensitivity

MW: 30 µV
LW: 40 µV

Outputs

Speaker outputs
(sure seal connectors)

Speaker impedance

4 – 8 ohms

Maximum power output 45 W 

× 4 (at 4 ohms)

Outputs

Power aerial relay control
lead

Inputs

Telephone ATT control lead

Tone controls

Bass ±9 dB at 100 Hz
Treble ±9 dB at 10 kHz

Power requirements

12 V DC car battery
(negative ground)

Dimensions

Approx. 178 

× 50 × 177 mm

(w/h/d)

Mounting dimension

Approx. 182 

× 53 × 162 mm

(w/h/d)

Mass

Approx. 1.2 kg

Supplied accessories

Parts for installation and
connections (1 set)
Front panel case (1)

• The tuner and CD sections have no adjustments.

2002A0400-1

© 2002. 01

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COMPONENTS  IDENTIFIED  BY  MARK  0  OR  DOTTED  LINE
WITH  MARK  0  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN
THE  PARTS  LIST  ARE  CRITICAL  TO  SAFE  OPERATION.
REPLACE  THESE  COMPONENTS  WITH  SONY  PARTS  WHOSE
PART  NUMBERS  APPEAR  AS  SHOWN  IN  THIS  MANUAL  OR
IN  SUPPLEMENTS  PUBLISHED  BY  SONY.

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.

NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission, ob-
serve from more than 30 cm away from the objective lens.

Notes on Chip Component Replacement
• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

This label is located on the bottom of the chassis.

This label is located on the drive unit’s internal chassis.

When replacing the chassis (T.U) of mechanism deck which have
the “CAUTION LABEL” attached, please be sure to put a new
LABEL (OP CAUTION) (3-223-913-01) to the chassis (T.U).

TEST DISCS
This set can playback CD-R and CD-ROM discs. The following
test discs should be used to check the capability:

CD-R test disc TCD-R082LMT (Part No. J-2501-063-1)
CD-RW test disc TCD-W082L (Part No. J-2501-063-2)

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Location of controls ................................................................. 4
Notes on CD-R/CD-RW discs ................................................. 4
Connections ............................................................................. 5

2-1.   Sub Panel Assy .................................................................... 6
2-2.   CD Mechanism Block ......................................................... 7
2-3.   Main Board ......................................................................... 7
2-4.   Heat Sink ............................................................................. 8
2-5.   Chassis (T.U) Assy .............................................................. 8
2-6.   Disc in Board ...................................................................... 9
2-7.   Servo Board ......................................................................... 9
2-8.   Shaft Roller Assy .............................................................. 10
2-9.   Floating Block Assy .......................................................... 10
2-10. Optical Pick-up Block ....................................................... 11

3-1.   IC Pin Description ............................................................. 12
3-2.   Circuit Boards Location .................................................... 14

3-3.   Block Diagram –CD Section– ........................................... 15
3-4.   Block Diagram –Tuner Section– ....................................... 16
3-5.   Block Diagram –Display Section– .................................... 17
3-6.   Printed Wiring Boards –CD Mechanism Section– ............ 18
3-7.   Schematic Diagram –CD Mechanism Section– ................ 20
3-8.   Printed Wiring Board –Main Section– .............................. 21
3-9.   Schematic Diagram –Main Section (1/2)– ........................ 22
3-10. Schematic Diagram –Main Section (2/2)– ........................ 23
3-11. Printed Wiring Board –Key Section– ................................ 24
3-12. Schematic Diagram –Key Section– ................................... 25

4-1.   Chassis Section ................................................................. 28
4-2.   Front panel Section ........................................................... 29
4-3.   CD Mechanism Section (1) ............................................... 30
4-4.   CD Mechanism Section (2) ............................................... 31
4-5.   CD Mechanism Section (3) ............................................... 32

......................................... 33

MAIN BOARD
CNP301

J-2502-011-1

SERVO BOARD
CN1

EXTENSION CABLE AND SERVICE POSITION
When repairing or servicing this set, connect the jig (extension cable)
as shown below.

• Connect the MAIN board (CNP301) and the SERVO board (CN1)

with the extension cable (Part No. J-2502-011-1).

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This section is extracted
from instruction manual.