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Sony CDX-L490B Car CD Tuner
Manufacturer:
Model:
CDX-L490B
Date:
2002
Class:
Type:
SubType:
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)

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Service Manual
Manual type:
Service Manual
Pages:
38
Size:
3.91 Mbytes (4101109 Bytes)
Language:
english
Revision:
1.0
Manual-ID:
9-874-266-01
Date:
unknown
Quality:
Electronic document, no scan, very well readable.
Upload date:
2012 04 06
MD5:
9299d543335a8efad42f209e9a59f1b4
Downloads:
1597

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

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