Sony CDXL-350 Service manual
CDX-L350/L360
SERVICE MANUAL
Ver 1.1 2001. 02
Photo: CDX-L350
• The tuner and CD sections have no adjustments.
SPECIFICATIONS
AEP Model
UK Model
CDX-L350/L360
E Model
CDX-L350
Model Name Using Similar Mechanism CDX-CA650
CD Drive Mechanism Type MG-393X-121//Q
Optical Pick-up Name KSS-720A
CD player section
Signal-to-noise ratio 90 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Tuner section
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
Power amplifier section
Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output 45 W × 4 (at 4 ohms)
General
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)
Design and specifications are subject to change without
notice.
9-870-278-12
2001B0400-1
© 2001. 2
FM/MW/LW COMPACT DISC PLAYER
Sony Corporation
Audio Entertainment Group
General Engineering Dept.
1
CDX-L350/L360
SERVICE NOTES
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
CAUTION LABEL (3-223-913-11) to the chassis (T.U).
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.
TABLE OF CONTENTS
1. GENERAL
Location of Controls................................................................ 3
Setting the Clock ..................................................................... 3
CD Player ................................................................................ 3
Radio ....................................................................................... 3
RDS ......................................................................................... 4
Other Functions .......................................................................5
Connections .............................................................................5
2. DISASSEMBLY
2-1. Sub Panel Assy .................................................................... 7
2-2. CD Mechanism Block ......................................................... 8
2-3. Main Board ......................................................................... 8
2-4. Heat Sink ............................................................................. 9
2-5. Chassis (T.U) Assy .............................................................. 9
2-6. Disc In Board .................................................................... 10
2-7. Servo Board....................................................................... 10
2-8. Arm Roller Assy................................................................ 11
2-9. Chassis (OP) Assy............................................................. 11
2-10. Optical Pick-up Block ....................................................... 12
3. DIAGRAMS
3-1. IC Pin Description............................................................. 13
3-2. Block Diagram –CD Section–........................................... 15
3-3. Block Diagram –Tuner Section–.......................................16
3-4. Block Diagram –Display Section–.................................... 17
3-5. Circuit Boards Location ....................................................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
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 pickup block. Therefore, when checking the laser diode emission, observe 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.
SAFETY-RELATED COMPONENT WARNING!!
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 P ARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
4. EXPLODED VIEWS
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
5. ELECTRICAL PARTS LIST ........................................ 33
2
SECTION 1
GENERAL
CDX-L350/L360
This section is extracted
from instruction manual.
3
CDX-L350/L360
4
CDX-L350/L360
55
CDX-L350/L360
66
SECTION 2
DISASSEMBLY
• The equipment can be removed using the following procedure.
CDX-L350/L360
Set Sub Panel Assy CD Mechanism Block
Chassis (T.U) Sub Assy Disc In Board
Servo Board
Chassis (OP) Assy Optical Pick-up Block
Main Board Heat Sink
Arm Roller Assy
Note : Follow the disassembly procedure in the numerical order given.
2-1. SUB PANEL ASSY
3 claw
2 PTT 2.6x6
1 PTT 2.6x6
4 claws
5 sub panel assy
7
CDX-L350/L360
6
6
2-2. CD MECHANISM BLOCK
5 CD mechanism block
2 PTT 2.6x6
7 bracket (CD)
6 PTT 2.6x
2-3. MAIN BOARD
6 MAIN board
5 ground point screws
(PTT 2.6x6)
3
1 PTT 2.6x6
4 CNP301
4 ground point screw
(PTT 2.6x6)
3 PTT 2.6x
2 PTT 2.6x6
1 PTT 2.6x6
8
2-4. HEAT SINK
0
CDX-L350/L360
4 heat sink
3 PTT 2.6x1
2-5. CHASSIS (T.U) ASSY
1 Unsolder the
lead wires.
2 PTT 2.6x16
1 PTT 2.6x10
2 P 2x3
3 P 2x3
4 chassis (T.U) assy
black
red
white
9
CDX-L350/L360
2-6. DISC IN BOARD
4 guide (disc)
3 tension spring (LR)
1 PS 2x4
2 DISC IN board
2-7. SERVO BOARD
3 Removal the solders.
6 loading motor assy
(M903)
4 claws
7 PS 2x4
8 PS 2x4
2 CN2
1 CN3
5 P 2x3
9 SERVO board
4 Removal the solders.
10
)
2-8. ARM ROLLER ASSY
• When installing, take note of the positions
arm (roller) and washers. (Fig. 1)
2 arm roller assy
3 PS 2x3
4 LOAD board
retaining ring (roller)
arm
bearing (roller)
washer(RA)
Fig. 1
washer(RA)
CDX-L350/L360
bearing (roller
arm
2-9. CHASSIS (OP) ASSY
8 compression spring (FL)
1 tension spring (KF1)
1 tension spring (RA3)
7 chassis (OP) assy
9 compression spring (FL)
2 tension spring (KR1)
5 Fit lever (D) in the
direction of the arrow.
6 Turn loading ring in the
direction of the arrow.
4 damper (T)
3 damper (T)
11
CDX-L350/L360
2-10. OPTICAL PICK-UP BLOCK
1 P 2x3
2 sled motor assy
(M902)
3 optical pick-up block
12
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