Sony CDXL-460-X Service manual
CDX-L300/L460X
SERVICE MANUAL
Ver 1.3 2003. 08
Photo: CDX-L460X
• The CD sections have no adjustments.
SPECIFICATIONS
US Model
Canadian Model
CDX-L300
E Model
CDX-L460X
Model Name Using Similar Mechanism
CD Drive Mechanism Type
Optical Pick-up Name KSS-720A
CDX-L250/L430X
NEW
MG-393X-121//K
MG-393XA-121//K
AUDIO POWER SPECIFICATIONS (US Model)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
22 watts per channel minimum continuous average power into
4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more
than 5% total harmonic distortion.
CD player section
Signal-to-noise ratio 90 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Laser Diode Properties (CDX-L300)
Material GaAlAs
Wavelength 780 nm
Emission Duration Continuous
Laser output power Less than 44.6 µW*
* This output is the value measured at a distance
of 200 mm from the objective lens surface on the
Optical Pick-up Block.
Tuner section
FM
Tuning range CDX-L300:
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz
Usable sensitivity 11 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 65 dB (stereo),
87.5 – 107.9 MHz
CDX-L460X:
FM tuning interval:
50 kHz/200 kHz
switchable
87.5 – 108 MHz
(at 50 kHz step)
87.5 – 107.9 MHz
(at 200 kHz step)
68 dB (mono)
Harmonic distortion at 1 kHz
0.7% (stereo),
0.5% (mono)
Separation 33 dB at 1 kHz
Frequency response 30 – 15,000 Hz
AM
Tuning range CDX-L300:
530 – 1,710 kHz
CDX-L460X:
AM tuning interval:
9 kHz/10 kHz
switchable
531 – 1,602 kHz
(at 9 kHz step)
530 – 1,710 kHz
(at 10 kHz step)
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV
Power amplifier section
Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output 45 W × 4 (at 4 ohms)
– Continued on next page –
FM/AM COMPACT DISC PLAYER
9-873-402-04
2003H04-1
© 2003. 08
Sony Corporation
e Vehicle Company
Published by Sony Engineering Corporation
1
k
CDX-L300/L460X
General
Outputs Audio output
Power amplifier control lead
(CDX-L300)
Power antenna relay
control lead (CDX-L300)
Power aerial relay control
lead (CDX-L460X)
Tone controls Bass ±10 dB at 20 Hz (CDX-L300)
Treble ±10 dB at 20 kHz (CDX-L300)
Bass ±9 dB at 100 Hz (CDX-L460X)
Treble ±9 dB at 10 kHz (CDX-L460X)
Power requirements 12 V DC car battery
(negative ground)
Dimensions Approx. 178 × 50 × 176 mm
(7 1/8 × 2 × 7 in.)
(w/h/d)
Mounting dimensions Approx. 182 × 53 × 161 mm
(7 1/4 × 2 1/8 × 6 3/8 in.)
(w/h/d)
Mass Approx. 1.2 kg (2 lb. 10 oz.)
Supplied accessories Parts for installation and
connections (1 set)
Note (CDX-L460X)
This unit cannot be connected to a digital
preamplifier or an equalizer.
Design and specifications are subject to change without
notice.
SERVICE NOTES
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-fixed resistor located at the side of optical
pick-up block.
optical pick-up bloc
semi-fixed resistor
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 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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
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)
LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES
SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT.
NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES
SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL
OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
2
Notes for Inspection of the Mechanism Deck
The CDX-L300 uses two types of mechanism decks.
Former type: MG-393X-121//K
New type: MG-393XA-121//K
The CDX-L460X only uses the MG-393XA-121//K.
When inspecting and/or serving, check the model No. printed on
the SERVO board.
- SERVO BOARD (SIDE A) -
CDX-L300/L460X
MG-393X//K:MG-393X-121//K
MG-393XA//K:MG-393XA-121//K
3
CDX-L300/L460X
EXTENSION CABLE AND SERVICE POSITION
When repairing or servicing this set, connect the jig (extension cable)
as shown below.
MG-393X-121//K
• Connect the MAIN board (CNP701) and the SERV O board (CN1)
with the extension cable (Part No. J-2502-011-1).
MAIN BOARD CNP701
SERVO BOARD CN1
J-2502-011-1
MG-393XA-121//K
• Connect the MAIN board (CNP701) and the SERV O board (CN1)
with the extension cable (Part No. J-2502-062-1).
MAIN BOARD CNP701
SERVO BOARD CN1
J-2502-062-1
4
TABLE OF CONTENTS
CDX-L300/L460X
1. GENERAL
Location of controls (L300) .................................................... 6
Location of controls (L460X).................................................. 6
Getting Started......................................................................... 6
CD Player ................................................................................ 7
Radio ....................................................................................... 7
Other Functions ....................................................................... 8
Additional Information............................................................ 8
Connections (L300) ................................................................. 9
Connections (L460X) ............................................................ 11
2. DISASSEMBLY
2-1. Front Panel Assy ............................................................... 13
2-2. CD Mechanism Block ....................................................... 14
2-3. Main Board ....................................................................... 14
2-4. Heat Sink ........................................................................... 15
2-5. Chassis (T) Sub Assy ........................................................ 15
2-6. Lever Section..................................................................... 16
2-7. Servo Board....................................................................... 16
2-8. Shaft Roller Assy .............................................................. 17
2-9. Floating Block Assy .......................................................... 17
2-10. Optical Pick-up Block ....................................................... 18
3. DIAGRAMS
3-1. IC Pin Description............................................................. 19
3-2. Block Diagram –CD Section–........................................... 21
3-3. Block Diagram –Tuner Section–....................................... 22
3-4. Block Diagram –Display Section–.................................... 23
3-5. Circuit Boards Location .................................................... 24
3-6. Schematic Diagram
–CD Mechanism Section (MG-393X-121//K)– ................ 25
3-7. Printed Wiring Boards
–CD Mechanism Section (MG-393X-121//K)– ................ 26
3-8. Printed Wiring Boards
–CD Mechanism Section (MG-393XA-121//K)– ............. 28
3-9. Schematic Diagram
–CD Mechanism Section (MG-393XA-121//K)– ............. 30
3-10. Printed Wiring Board –Main Section– .............................. 31
3-11. Schematic Diagram –Main Section (1/2)– ........................ 32
3-12. Schematic Diagram –Main Section (2/2)– ........................ 33
3-13. Printed Wiring Board –Display Section– .......................... 34
3-14. Schematic Diagram –Display Section–............................. 35
4. EXPLODED VIEWS
4-1. Chassis Section ................................................................. 38
4-2. Front Panel Section ........................................................... 39
4-3. CD Mechanism Section (1) (MG-393X-121//K) .............. 40
4-4. CD Mechanism Section (2) (MG-393X-121//K) .............. 41
4-5. CD Mechanism Section (3) (MG-393X-121//K) .............. 42
4-6. CD Mechanism Section (1) (MG-393XA-121//K) ........... 43
4-7. CD Mechanism Section (2) (MG-393XA-121//K) ........... 44
4-8. CD Mechanism Section (3) (MG-393XA-121//K) ........... 45
5. ELECTRICAL PARTS LIST ........................................ 46
5
CDX-L300/L460X
(L300) (L460X)
SECTION 1
GENERAL
This section is extracted
from instruction manual.
6
CDX-L300/L460X
7
CDX-L300/L460X
8
• Connections (L300)
CDX-L300/L460X
9
CDX-L300/L460X
10
• Connections (L460X)
CDX-L300/L460X
11
CDX-L300/L460X
12
SECTION 2
DISASSEMBLY
Note : This set can be disassemble according to the following sequence.
SET
2-5. CHASSIS (T) SUB ASSY
2-1. FRONT PANEL ASSY
(Page 13)
(Page 15)
CDX-L300/L460X
2-2. CD MECHANISM BLOCK
(Page 14)
2-3. MAIN BOARD
(Page 14)
2-4. HEAT SINK
(Page 15)
2-6. LEVER SECTION
(Page 16)
2-8. SHAFT ROLLER ASSY
(Page 17)
2-9. FLOATING BLOCK ASSY
(Page 17)
2-10. OPTICAL PICK-UP BLOCK
(Page 18)
Note : Follow the disassembly procedure in the numerical order given.
2-1. FRONT PANEL ASSY
2-7. SERVO BOARD
(Page 16)
2
claws
4
front panel assy
claws
3
CNP801
1
claws
13
CDX-L300/L460X
8
6
2-2. CD MECHANISM BLOCK
6
CD mechanism block
2
PTT 2.6x6
8
bracket (CD)
7
PTT 2.6x
3
PTT 2.6x6
2-3. MAIN BOARD
4
screws (+BTT)
4
5
MAIN board
3
screw (+BTT)
5
CNP701
1
PTT 2.6x6
14
1
PTT 2.6x8
2
PTT 2.6x
8
2-4. HEAT SINK
CDX-L300/L460X
6
heat sink
5
PTT 2.6x
4
PTT 2.6x8
2-5. CHASSIS (T) SUB ASSY
1
Unsolder the
lead wires.
2
P 2x3
1
PTT 2.6x8
2
PTT 2.6x8
3
PTT 2.6x12
3
P 2x3
4
chassis (T) sub assy
black
red
white
15
CDX-L300/L460X
k
2-6. LEVER SECTION
6
lever (R)
3
tension spring (LR)
7
lever (L)
5
guide (disc)
1
special screw
2
IN SELF SW board
2-7. SERVO BOARD
2
4
loading motor assy
4
claws
5
special screws
Removal the solders.
1
CN3
3
P 2x3
7
SERVO board
6
special screw
8
connector
16
optical pick-up bloc
Fig. 1
1
tension spring (RA)
2
arm (roller)
3
retaing ring (RA)
4
shaft retainer
5
shaft roller assy
retaing ring (RA)
arm
arm
washer
washer
shaft retainer
shaft retainer
2-8. SHAFT ROLLER ASSY
• When installing, take note of the positions
arm (roller) and washers. (Fig. 1)
CDX-L300/L460X
2-9. FLOATING BLOCK ASSY
7
compression spring (FL)
5
Turn loading ring in the
direction of the arrow.
1
tension spring (KF1)
6
floating block assy
8
compression spring (FL)
4
Fit lever (D) in the
direction of the arrow.
3
damper (T)
2
damper (T)
17
CDX-L300/L460X
2-10. OPTICAL PICK-UP BLOCK
1
P 2x3
2
sled motor assy
6
shaft (feed) assy
4
P 2x3
5
spring (feed), plate
3
optical pick-up block
18
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