Sony CDX-L300 Installation/Connection User manual
1
Model Name Using Similar Mechanism CDX-L250/L430X
NEW
CD Drive Mechanism Type MG-393X-121//K
MG-393XA-121//K
Optical Pick-up Name KSS-720A
SERVICE MANUAL
US Model
Canadian Model
CDX-L300
E Model
CDX-L460X
CDX-L300/L460X
FM/AM COMPACT DISC PLAYER
Photo: CDX-L460X
• The CD sections have no adjustments.
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:
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)
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),
68 dB (mono)
SPECIFICATIONS
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 –
Ver 1.0 2001. 11
9-873-402-01
2001K0400-1
© 2001. 11
Sony Corporation
e Vehicle Company
Published by Sony Engineering Corporation
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2
optical pick-up bloc
k
semi-fixed resistor
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.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON 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.
SERVICE NOTES
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES
SONT CRITIQUES POUR LASÉCURITÉ 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.
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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
CDX-L300/L460X
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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3
CDX-L300/L460X
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.
MG-393X//K:MG-393X-121//K
- SERVO BOARD (SIDE A) -
MG-393XA//K:MG-393XA-121//K
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TEL 13942296513 QQ 376315150 892498299
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4
CDX-L300/L460X
EXTENSION CABLE AND SERVICE POSITION
Whenrepairingor servicingthisset, connect thejig(extensioncable)
as shown below.
MG-393X-121//K
• Connect the MAIN board (CNP701) and the SERVO board (CN1)
with the extension cable (Part No. J-2502-011-1).
MAIN BOARD CNP701
SERVO BOARD CN1
J-2502-011-1
MAIN BOARD CNP701
SERVO BOARD CN1
J-2502-062-1
MG-393XA-121//K
• Connect the MAIN board (CNP701) and the SERVO board (CN1)
with the extension cable (Part No. J-2502-062-1).
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TEL 13942296513 QQ 376315150 892498299
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5
TABLE OF CONTENTS
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
CDX-L300/L460X
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13
CDX-L300/L460X
SECTION 2
DISASSEMBLY
Note : This set can be disassemble according to the following sequence.
Note : Follow the disassembly procedure in the numerical order given.
2-1. FRONT PANEL ASSY
claws
1
claws
3
CNP801
4
front panel assy
2
claws
2-1. FRONT PANEL ASSY
(Page 13)
2-2. CD MECHANISM BLOCK
(Page 14)
2-5. CHASSIS (T) SUB ASSY
(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)
SET
2-7. SERVO BOARD
(Page 16)
2-3. MAIN BOARD
(Page 14)
2-4. HEAT SINK
(Page 15)
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14
CDX-L300/L460X
3
screw (+BTT)
4
screws (+BTT)
1
PTT 2.6x8
5
MAIN board
2
PTT 2.6x
8
1
PTT 2.6x6
7
PTT 2.6x
6
8
bracket (CD)
2
PTT 2.6x6
3
PTT 2.6x6
6
CD mechanism block
5
CNP701
4
2-3. MAIN BOARD
2-2. CD MECHANISM BLOCK
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15
CDX-L300/L460X
4
chassis (T) sub assy
3
P 2x3
2
P 2x3
1
Unsolder the
lead wires.
black
red
white
6
heat sink
1
PTT 2.6x8
2
PTT 2.6x8
4
PTT 2.6x8
3
PTT 2.6x12
5
PTT 2.6x
8
2-5. CHASSIS (T) SUB ASSY
2-4. HEAT SINK
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TEL 13942296513 QQ 376315150 892498299
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16
CDX-L300/L460X
5
special screws
1
CN3
2
Removal the solders.
3
P 2x3
4
loading motor assy
7
SERVO board
6
special screw
8
connector
optical pick-up bloc
k
4
claws
2
IN SELF SW board
7
lever (L)
3
tension spring (LR)
6
lever (R)
5
guide (disc)
1
special screw
2-6. LEVER SECTION
2-7. SERVO BOARD
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17
CDX-L300/L460X
1
tension spring (KF1)
7
compression spring (FL)
6
floating block assy
8
compression spring (FL)
4
Fit lever (D) in the
direction of the arrow.
2
damper (T)
3
damper (T)
5
Turn loading ring in the
direction of the arrow.
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
2-9. FLOATING BLOCK ASSY
2-8. SHAFT ROLLER ASSY
• When installing, take note of the positions
arm (roller) and washers. (Fig. 1)
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18
CDX-L300/L460X
1
P 2x3
4
P 2x3
5
spring (feed), plate
6
shaft (feed) assy
2
sled motor assy
3
optical pick-up block
2-10. OPTICAL PICK-UP BLOCK
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19
CDX-L300/L460X
3-1. IC PIN DESCRIPTION
• IC801 µPD780024AGK-B40-9ET (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Pin Description
1 D SW I Down switch detection input
2 IN SW I Disc in switch detection input
3 PH3 I PH3 detection input (Not used in this set)
4 LM LD O Loading motor drive output (Loading)
5 LM EJ O Loading motor drive output (Eject)
6 AATT O Power amplifier mute control output
7 ATT O Line out mute control output
8 BEEP O BEEP output
9 VSSO — Ground
10 VDDO — Power supply pin (+5 V)
11 VOL CLK O Electric volume clock output
12 VOL DO O Electric volume data out output
13 VOL CE O Electric volume chip enable output
14 AM ON O Tuner AM power supply control output
15 FM ON O Tuner FM power supply control output
16 NOSE I Front panel attachment detection input
17 PLL DI I PLL IC data input
18 LCD DO O LCD data output
19 LCD CE O LCD chip enable output
20 LCD CLK O LCD clock output
21 PLL CLK O PLL IC clock output
22 PLL DO O PLL IC data output
23 PLL CE O PLL IC chip enable output
24 VDD1 — Power supply pin (+5 V)
25 AVSS — Ground
26 ST IND I FM STEREO detection input
27 FUN SEL I Function select input
28 S METER I S meter signal input
29, 30 KEY0, 1 I A/D key input 0, 1
31 TELATT I Attenuator signal input
32 DST SEL I Destination select input
33 TEST I Force test mode input
34 AVREF — A/D converter power supply pin (+5 V)
35 AVDD — A/D converter power supply pin (+5 V)
36 RESET I Reset input
37 XT2 O Sub clock output (32.768 kHz)
38 XT1 I Sub clock input (32.768 kHz)
39 IC — Connect to Ground in this set.
40 X2 O Master clock output (8.38 MHz)
41 X1 I Master clock input (8.38 MHz)
42 VSS1 — Ground
43 KEY ACK I Key acknowledge detection input
44 SIRCS I SIRCS input
45 SELF SW I Self switch detection input
46 BU IN I Backup power supply detection input
47 AD ON O Key power supply control output
48 ILL ON O Illumination power supply control output
49 AMP ON O Amplifier remote power supply control output
50 CDM ON O CD mechanism deck power supply control output
51 XCD ON O CD DSP IC 16 MHz X’tal ON/OFF control output
52 TU ON O Tuner power supply control output
SECTION 3
DIAGRAMS
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TEL 13942296513 QQ 376315150 892498299
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20
CDX-L300/L460X
Pin No. Pin Name I/O Pin Description
53 P.ON O System power supply control output
54 X SO O CD DSP IC serial data output
55 X SI I CD DSP IC serial data input
56 X SCK O CD DSP IC serial clock output
57 RFOK I CD servo IC RFOK signal input
58 X RST O CD DSP IC reset control output
59 ACC IN I Accessory power supply detection input
60 AO O CD servo IC command/pallameter discrimination signal output
61 STB O CD servo IC data strobe signal output
62 XEN O CD DSP IC X’tal control output
63 L SW I Limit switch detection input
64 PH1 I PH1 detection input (Not used in this set)
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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