Sony CDX-L400X User Manual
CDX-L400X
SERVICE MANUAL
Ver 1.0 2001. 12
• The tuner and CD sections have no adjustments.
SPECIFICATIONS
AEP Model
UK Model
Model Name Using Similar Mechanism CDX-L350/L360
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 Audio 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.
9-873-438-01
2001L0400-1
© 2001. 12
FM/MW/LW COMPACT DISC PLAYER
Sony Corporation
e Vehicle Company
Published by Sony Engineering Corporation
1
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).
CDX-L400X
MAIN BOARD
CNP301
SERVO BOARD
CN1
J-2502-011-1
TABLE OF CONTENTS
1. GENERAL
Location of controls ................................................................. 4
Notes on CD-R/CD-RW discs ................................................. 4
Connections ............................................................................. 5
2. DISASSEMBLY
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. Arm Roller Assy ................................................................ 10
2-9. Chassis (OP) Assy ............................................................. 10
2-10. Optical Pick-up Block ....................................................... 11
3. DIAGRAMS
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. 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
3
CDX-L400X
SECTION 2
DISASSEMBLY
Note : This set can be disassemble according to the following sequence.
SET
2-5. CHASSIS (T.U) ASSY
2-1. SUB PANEL ASSY
(Page 6)
(Page 8)
2-2. CD MECHANISM BLOCK
(Page 7)
2-3. MAIN BOARD
(Page 7)
2-4. HEAT SINK
(Page 8)
2-6. DISC IN BOARD
(Page 9)
2-8. ARM ROLLER ASSY
(Page 10)
2-9. CHASSIS (OP) ASSY
(Page 10)
2-10. OPTICAL PICK-UP BLOCK
(Page 11)
Note : Follow the disassembly procedure in the numerical order given.
2-1. SUB PANEL ASSY
2-7. SERVO BOARD
(Page 9)
2
PTT 2.6x6
1
PTT 2.6x6
3
claw
5
sub panel assy
4
claws
6
2-2. CD MECHANISM BLOCK
6
6
5
CD mechanism block
2
PTT 2.6x6
7
bracket (CD)
6
PTT 2.6x
CDX-L400X
2-3. MAIN BOARD
5
ground point screws
(PTT 2.6x6)
3
6
MAIN board
4
CNP301
4
ground point screw
(PTT 2.6x6)
1
PTT 2.6x6
3
PTT 2.6x
1
PTT 2.6x6
2
PTT 2.6x6
7
CDX-L400X
0
2-4. HEAT SINK
4
heat sink
3
PTT 2.6x1
2-5. CHASSIS (T.U) ASSY
1 Unsolder the
lead wires.
2 P 2x3
1
PTT 2.6x10
2
PTT 2.6x16
3 P 2x3
4 chassis (T.U) assy
black
red
white
8
2-6. DISC IN BOARD
5
guide (disc)
3
tension spring (LR)
1
PS 2x4
2
DISC IN board
CDX-L400X
2-7. SERVO BOARD
3 Removal the solders.
4
8 PS 2x4
5 P 2x3
claws
7 PS 2x4
2 CN2
1 CN3
9 SERVO board
4 Removal the solders.
6 loading motor assy
(M903)
9
CDX-L400X
)
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)
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.
10
6 Turn loading ring in the
direction of the arrow.
3 damper (T)
4 damper (T)
2-10. OPTICAL PICK-UP BLOCK
1
P 2x3
2
sled motor assy
7
shaft (feed) assy
5
P 2x3
6
plate spring (feed)
3
optical pick-up block
CDX-L400X
4
pick-up flexible board
11
CDX-L400X
SECTION 3
DIAGRAMS
3-1. IC PIN DESCRIPTION
• IC501 MN101C49KTD2 (SYSTEM CONTROL)
Pin No. Pin Name I/O Pin Description
1 VREF– — Rated voltage – for A/D converter.
2 VSM I S-meter voltage detection input
3 NC — Not used. (Connect to ground in this set)
4 KEYIN1 I Key input 1
5 KEYIN0 I Key input 0
6 RCIN0 I Rotary commander input 0 (Fixed at L in this set)
7 QUALITY I Noise detection input
8 MPTH I Tuner multi-path detection input
9 NC — Not used. (Connect to ground in this set)
10 VREF+ — Rated voltage + for A/D converter. (+5 V)
11 VDD — Power supply pin (+5 V)
12 OSCOUT O Oscillator output (18.432 MHz)
13 OSCIN I Oscillator input (18.432 MHz)
14 VSS — Ground
15 XIN I Oscillator input (32.768 kHz)
16 XOUT O Oscillator output (32.768 kHz)
17 MMOD — Mode selector (Connect to ground in this set)
18 LCDSO O LCD serial data output
19 LCDCE O LCD chip enable output
20 LCDCKO O LCD serial clock output
21 CD_TSO O CD text serial data output
22 CD_TSI I CD text serial data input
23 CD_TCKO O CD text serial clock output
24 NC — Not used. (Open)
25 NC — Not used. (Open)
26 KEY ACK I Key acknowledge detection input
27 DAVN I RDS data block synchro detection input
28 BUIN I Back-up power detection input
29 NC I Not used. (Connect to ground in this set)
30 CD_SELFSW I CD self switch input
31 CD_PACK I CD pack synchro signal input
32 NC (VCC) — Not used. (Connect to VDD in this set)
33 RESET I Reset input
34 NC — Not used. (Fixed at H in this set)
35 BEEP O Beep output
36 NC — Not used. (Open)
37 TESTIN I Test mode detection input
38 ACCIN I Accessory power detection input
39 NC (VCC) — Not used. (Open)
40 TELATT I Telephone attenuate detection input
41 NC (VCC) — Not used. (Connect to VDD in this set)
42 UNISO O SONY BUS data output
43 UNISI I SONY BUS data input
44 UNICKO O SONY BUS clock output
45 I2C_SIO I/O I2C BUS serial data input/output
46 NC — Not used. (Open)
47 I2C_CKO O I2C BUS serial clock output
48 NC — Not used. (Open)
49 TUNON O Tuner power control output
50 PW_ON O System power control output
51 TSTB O CD text strobe output
12
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