Equipment information:

Sony CDX-L490B Car CD Tuner
Manufacturer:
Sony
Model: CDX-L490B
Date: 2002
Category: Audio, Video, TV, Multimedia
Group: Car CD Tuner
Description: FM/AM COMPACT DISC PLAYER
Information:
                                    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 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)
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 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 AM: 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)
General
Outputs Audio outputs (rear)
Power antenna relay control terminal
Power amplifier control terminal
Inputs Antenna input terminal
Tone controls Low: ±10 dB at 60 Hz (XPLOD)
Mid: ±10 dB at 1 kHz (XPLOD)
High: ±10 dB at 10 kHz (XPLOD)
Power requirements 12 V DC car battery
(negative earth)
Dimensions Approx. 178 × 50 × 176 mm
(w/h/d)
Mounting dimensions Approx. 182 × 53 × 161 mm
(w/h/d)
Mass Approx. 1.2 kg
Supplied accessories Parts for installation and connections
Front panel case (1)

These manuals are available for the above equipment:

Sony -- CDX-L490B -- Service Manual
File name: Sony-3410-Manual-Page-1-Picture
Manual Type: Service Manual
Pages: 38
Size: 3.91 Mbytes (4101109 Bytes)
Language: english
Revision: 1.0
Manual-ID/Number: 9-874-266-01
Date: December 2002
Quality: Electronic document, no scan, very well readable.
Upload date:
MD5: 9299d543335a8efad42f209e9a59f1b4
ed2kID: 3eb8a6de6bbf06eaa093e93bb6248913
Downloads: 318 since 06 April 2012
Information:
TABLE OF CONTENTS
1. GENERAL
Location of controls ................................................................. 4
Connections ............................................................................. 4
2. DISASSEMBLY
2-1. Sub Panel (1) Assy .............................................................. 6
2-2. CD Mechanism Block ......................................................... 7
2-3. Main Board ......................................................................... 7
2-4. Heat Sink ............................................................................. 8
2-5. Chassis (T) Sub Assy .......................................................... 8
2-6. Lever Section, In Self Sw Board ......................................... 9
2-7. Servo Board ......................................................................... 9
2-8. Shaft Roller Assy, Load Sw Board .................................... 10
2-9. Floating Block 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 Boards –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 –Display Section– .......................... 24
3-12. Schematic Diagram –Display Section– ............................. 25
3-13. IC Block Diagrams ............................................................ 26
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
Sony-3410-Manual-Page-1-Picture
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