Sony service manual MDX-CA680/CA680X, Specifications

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MDX-CA680/CA680X

SERVICE MANUAL

US Model

MDX-CA680X

Ver 1.1 2001.05

AEP Model UK Model

MDX-CA680/CA680X

Photo: MDX-CA680X (US model)

U.S. and foreign patents licensed from Dolby laboratories Licensing Corporation.

Model Name Using Similar Mechanism

NEW

 

 

Base Mechanism Type

MG-164MA-138

 

 

Optical Pick-up Name

KMS-241C

 

 

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS (US model)

POWER OUTPUT AND TOTAL HARMONIC DISTORTION

23 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.

MD Player section

Signal-to-noise ratio

90 dB

Frequency response

10 – 20,000 Hz

Wow and flutter

Below measurable limit

Laser Diode Properties (US model)

Material

GaAlAs

Wavelength

780 nm

Emission Duration

Continuous

Laser output power

Less than 44.6 W*

*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

 

 

US model:

87.5

– 107.9 MHz

AEP, UK models:

87.5

– 108.0 MHz

Antenna terminal

External antenna 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

MW/LW (AEP, UK models)

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 V

 

LW: 40 V

Power amplifier section

Outputs

Speaker outputs

 

(sure seal connectors)

Speaker impedance

4 – 8 ohms

Maximum power output

50 W 4 (at 4 ohms)

General

Outputs

Audio outputs (front/rear)

 

Power antenna relay control

 

lead

 

Power amplifier control lead

Inputs

Telephone ATT control lead

 

BUS control input

 

connector

 

BUS audio input connector

 

Remote controller input

 

connector

Tone controls

Antenna input connector

US model:

Bass ± 10 dB at 100 Hz

 

Treble ± 10 dB at 15 kHz

AEP, UK models:

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

 

(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)

 

 

Front panel case (1)

Note

This unit cannot be connected to a digital preamplifier or an equalizer.

Design and specifications are subject to change without notice.

 

0.6 % (stereo),

 

0.3 % (mono)

Separation

35 dB at 1 kHz

Frequency response

30 – 15,000 Hz

AM (US model)

 

Tuning range

530 – 1,710 kHz

Antenna terminal

External antenna connector

Intermediate frequency

10.7 MHz/450 kHz

Sensitivity

30 V

9-870-242-12Sony Corporation

FM/AM (MW/LW) MINIDISC PLAYER

2001E0500-1

e Vehicle Company

C 2001.5

Shinagawa Tec Service Manual Production Group

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Contents MDX-CA680/CA680X SpecificationsDisassembly Table of Contents GeneralElectrical Adjustments Exploded ViewsSection General Location of controlsSetting the clock US model US model AEP, UK Models Precautions Toyota Disassembly Flow Section DisassemblySUB Panel Assy Main Board Mechanism Deck MG-164MA-138Servo Board Heat SinkFloat Block MD Cover AssyLever LE23 Assy LO Motor Assy Loading M903Chucking ARM Assy Holder AssySL Motor Assy Sled M902, SP Motor Assy Spindle M901 Optical PICK-UP KMS-241CMD Section Section Electrical AdjustmentsTuner Section IC101 PCM1718E/2K Section DiagramsCXA2523AR IC305 BA6287F IC401 TDA7402TR IC505 BA8270F-E2 EFM/ACIRC ENCODER/DECODER Block Diagram Servo SectionFM/AM Tuner Unit Block Diagram Tuner Section23 a 23 B 24 F 24 E 24 H Block Diagram Main Section+B Switch Block Diagram BUS CONTROL/POWER Supply SectionSignal path Circuit Boards Location Semiconductor Location MDX-CA680/CA680X MDX-CA680/CA680X D558 D560 D601 D609 D610 D612 MDX-CA680/CA680X Schematic Diagram Main Board 2/3 See page 40 for Waveforms MDX-CA680/CA680X K1 S2 K2 Schematic Diagram SUB Board Printed Wiring Board KEY Board Schematic Diagram KEY Board See page 40 for Waveform KEY Board IC PIN Function Description XWE XrasMvci AsyoSfdr SrdrSprd SpfdVref XstbyVCC WbladjEject ResetDfctsel DpllselLinkoff ERROR-PWMUnireq UnickioNIL VSMKEYIN1 KEYIN0IIC CKO IIC SIOPW on ColswGeneral Section Section Exploded ViewsLCD901 Front Panel SectionMechanism Deck MG-164MA-138 156 158 157159 161KEY Section Electrical Parts ListSWITCH, KEY Board with LED List KEY Main SWITCH, Tactile with LED D-BASSMain Diode DTZ-TT11-16B Ref. No Description Remark R18 Short R21 216-825-11 Vibrator Main Sensor ServoInductor Chip Disc Slot Illumination CA680X Servo SUB503 501 502505 506 507Memo Revision History

MDX-CA680 specifications

The Sony MDX-CA680 is an advanced multi-disc car audio system that exemplifies Sony's commitment to delivering high-quality sound and innovative features. With its sleek design and user-friendly interface, it stands as a popular choice for audiophiles and casual listeners alike. This model supports both MD (MiniDisc) playback as well as traditional CD formats, providing exceptional versatility for music enthusiasts who prefer various media.

One of the standout features of the MDX-CA680 is its 40 watts maximum output per channel. This power allows for dynamic sound reproduction across a wide range of musical genres. By utilizing Sony's proprietary Dynamic Bass Enhancement technology, the system enriches low-frequency sounds, making them feel fuller and more immersive, perfect for bass-heavy tracks.

The MDX-CA680 is designed with user convenience in mind. Its rotary control knob and intuitive button layout facilitate easy navigation through tracks and settings, allowing drivers to focus on the road while effortlessly managing their audio experience. The system also boasts a detachable faceplate, a crucial security feature for preventing theft.

Another notable characteristic of the MDX-CA680 is its support for various audio formats. Besides MD and CD, the system can handle MP3s, enabling users to create and playback custom playlists with ease. The player’s compatibility with CD-R and CD-RW media also enhances its functionality, allowing users to enjoy burned discs filled with their favorite tunes.

The display on the MDX-CA680 is characterized by a clear and bright LCD screen that provides essential information at a glance. This includes track titles, elapsed time, and artist names, making it easy to follow along with your music. Additionally, the unit supports adjustable EQ settings, allowing users to personalize their audio experience to suit their preferences.

In terms of installation, the MDX-CA680 is designed to integrate seamlessly into various vehicle models, featuring a standard DIN size that fits most aftermarket dashboards. Overall, the Sony MDX-CA680 stands out in the realm of car audio systems, offering a blend of versatility, quality, and user-friendly features that enhance the driving experience, making every journey more enjoyable.