Sony CDXC-880 Service manual

CDX-C880

SERVICE MANUAL

Ver 1.1 2001. 08

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS (US model)

POWER OUTPUT AND TOTAL HARMONIC DISTORTION 19 watts per channel minimum continuous average power into 4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more than 1 % total harmonic distortion.

US Model

E Model

Model Name Using Similar Mechanism CDX-C680/C780 CD Drive Mechanism Type MG-363S-121 Optical Pick-up Name KSS-521A

Other specifications CD player section

System Compact disc digital audio

system Signal-to-noise ratio 100 dB Frequency response 10 - 20,000 Hz Wow and flutter Below measurable limit Laser Diode Properties

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

Tuning range US model:

87.5 - 107.9 MHz

E model:

FM tuning interval:

50 kHz/200 kHz switchable

87.5 - 108.0 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 8 dBf Selectivity 75 dB at 400 kHz

50 dB at 200 kHz Signal-to-noise ratio 65 dB (stereo),

68 dB (mono) Harmonic distortion at 1 kHz

0.7% (stereo),

0.4% (mono) Separation 35 dB at 1 kHz Frequency response 30 - 15,000 Hz

Tuning range US model:

530 - 1,710 kHz E model: 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 10.71 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)

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FM/AM COMPACT DISC PLAYER

9-925-983-12

Sony Corporation

e Vehicle Company Shinagawa Tec Service Manual Production Group

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General

Outputs EQ output

Line outputs (3) Power antenna relay control lead Power amplifier control lead Telephone ATT control lead Illumination control lead

Tone controls Bass ±8 dB at 100 Hz

Treble ±8 dB at 10 kHz

Power requirements 12 V DC car battery

(negative ground)

Dimensions Approx. 178 × 50 × 182 mm

(7 1/8 × 2 × 7 1/4 in.) (w/h/d)

Mounting dimension Approx. 182 × 53 × 163 mm

(7 1/4 × 2 1/8 × 6 1/2 in.)

(w/h/d) Mass Approx. 1.4 kg (3 lb. 1 oz.) Supplied accessories Rotary commander RM-X4S (1)

Parts for installation and

connections (1 set)

Front panel case (1)

Design and specifications are subject to change without notice.

SERVICE NOTE

CAUTION

Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

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.

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 PICK-UP FLEXIBLE BOARD

The pick-up flexible board in this set is secured to the optical pickup with an adhesive tape. Once the tape is removed, an adhering force becomes weak, and it cannot be reused. Therefore, if the optical pick-up is replaced, replace also the pickup flexible board with a new one.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE P ART NUMBERS APPEAR AS SHOWN IN THIS MANU AL OR IN SUPPLEMENTS PUBLISHED BY SONY.

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TABLE OF CONTENTS

1. GENERAL

Location of Controls................................................................ 4

Getting Started......................................................................... 5

Setting the Clock ..................................................................... 5

CD Player ................................................................................ 6

Radio ....................................................................................... 8

Other Functions ..................................................................... 10

CD/MD Unit.......................................................................... 11

DSP........................................................................................ 15

TV/Video ............................................................................... 17

Connections ........................................................................... 19

2. DISASSEMBLY

2-1. Cover ................................................................................. 21

2-2. Front Panel Assy ............................................................... 21

2-3. Sub Panel Assy.................................................................. 22

2-4. Mechanism Block ............................................................. 22

2-5. Main Board ....................................................................... 23

2-6. Heat Sink ........................................................................... 23

2-7. Chassis (T) Sub Assy ........................................................ 24

2-8. Lever Assy.........................................................................24

2-9. Servo Board....................................................................... 25

2-10. Roller Assy........................................................................ 25

2-11. Chassis (OP) (O/S) Assy ................................................... 26

2-12. Optical Pick-up Block ....................................................... 26

3. ELECTRICAL ADJUSTMENTS

CD Section ............................................................................ 27

Tuner Section.........................................................................27

4. DIAGRAMS

4-1. IC Pin Descriptions ........................................................... 30

4-2. Circuit Boards Location .................................................... 38

4-3. Block Diagram –CD Section–........................................... 39

4-4. Block Diagram –Main Section–........................................ 41

4-5. Block Diagram –Display Section–.................................... 43

4-6. Printed Wiring Boards –CD Mechanism Section–............ 45

4-7. Schematic Diagram –CD Mechanism Section– ................ 49

4-8. Schematic Diagram –Main Section–................................. 54

4-9. Printed Wiring Boards –Main Section– ............................ 59

4-10. Printed Wiring Boards –Display Section– ........................ 63

4-11. Schematic Diagram –Display Section–............................. 67

4-12. Printed Wiring Board –CSV Section–............................... 70

4-13. Schematic Diagram –CSV Section– ................................. 73

5. EXPLODED VIEWS

5-1. Chassis Section ................................................................. 80

5-2. Front Panel Section ........................................................... 81

5-3. CD Mechanism Section (1) ............................................... 82

5-4. CD Mechanism Section (2) ............................................... 83

5-5. CD Mechanism Section (3) ............................................... 84

6. ELECTRICAL PARTS LIST ........................................ 85

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SECTION 1

GENERAL

This section is extracted from instruction manual.

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SECTION 2

DISASSEMBLY

Note : Follow the disassembly procedure in the numerical order given.

2-1. COVER

claw

claws

cover

claw

2-2. FRONT PANEL ASSY

Push the bearing (L).

front panel assy

Push the button (open).

Push the bearing (R).

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2-3. SUB PANEL ASSY

PTT 2.6x6

claws

sub panel assy

CN804

PTT 2.6x6

claw

CN801

2-4. MECHANISM BLOCK

PTT 2.6x6

bracket (mechanism deck)

mechanism block

CN401

PTT 2.6x6

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PTT 2.6x6

CN10

CN202

connector

CN603

PTT 2.6x10

heat sink

2-5. MAIN BOARD

(PTT 2.6x6)

MAIN board

ground point screw

PTT 2.6x10

ground point screws

(PTT 2.6x6)

PTT 2.6x10

2-6. HEAT SINK

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+ 51 hidden pages