Sony MDX-CA680 service manual IC505 BA8270F-E2

Page 22

MDX-CA680/CA680X

 

 

 

 

 

 

IC51

SAA6588T-118

 

 

 

 

 

 

 

 

 

LVIN

CIN

SCOUT

 

 

 

VREF

MPX

VSSA

VDDA

AFIN

MAD PSWN

 

20

19

18

 

 

 

17

16

15

14

13

12 11

 

 

 

 

 

 

 

 

 

POWER SUPPLY

PAUSE

 

MULTI

 

 

 

 

 

 

& RESET

DETECTOR

 

PATH

 

 

57kHz

 

 

 

 

 

 

DETECTOR

 

 

8th ORDER

 

 

 

 

 

 

 

 

 

 

BAND-PASS FILTER

 

 

 

 

 

 

 

CLOCKED

 

 

 

 

SIGNAL QUALITY

 

 

 

 

 

COMPARATOR

 

 

 

 

DECODER

 

 

 

 

 

 

 

 

 

 

 

4

5

4

 

 

 

 

 

 

 

 

CLOCK

 

 

 

 

 

 

 

 

 

 

 

 

CLOCK

 

 

 

 

RDS/RDBS

RDS/RDBS

 

 

INTERFACE

DATA

 

 

 

 

DEMODULATOR

DECODER

 

 

REGISTER

 

 

 

 

 

 

 

 

 

DATA

 

 

 

 

 

 

TEST

OSCILLATOR

 

 

 

 

 

IIC BUS SLAVE

 

 

 

CONTROL

& CLOCK

 

 

 

 

 

TRANSCEIVER

 

1

2

3

4

5

6

7

8

 

 

9

10

 

MRO

MPTH

TCON

OSCO

OSCI

VSSD

VDDD

DAVN

 

 

SDA

SCL

 

IC505

BA8270F-E2

 

 

 

 

 

 

 

 

BUS ON

1

BUS ON

 

14

VCC

 

 

 

 

 

SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RST 2

RESET

13

RST

SWITCH

 

 

 

12BUS ON

11CLK IN

BATT

3

BATTERY

10

BU IN

SWITCH

 

 

 

 

CLK

4

 

 

 

VREF

5

 

 

 

DATA

6

 

9

DATA IN

GND

7

 

 

 

8

DATA OUT

 

 

 

IC601

 

BA4908-V3

 

 

 

 

 

 

 

 

 

 

 

 

 

REGULATOR

 

 

 

 

 

 

 

 

 

OVER VOLTAGE

 

 

 

 

 

 

 

 

 

 

PROTECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

 

 

 

 

+

+

+

1

2

3

4

5

6

7

8

9

10

11

12

NC

TUNER8.7 ANT SW

TUNER5.6 SW

STB

VDD5.6V

AMP

VCC

ANT

COM8.7V

TUNER5.6V

TUNER8.7V

GND

22

 

 

 

 

 

 

 

 

 

 

 

Image 22
Contents Specifications MDX-CA680/CA680XElectrical Adjustments Table of Contents GeneralDisassembly Exploded ViewsLocation of controls Section GeneralSetting the clock US model US model AEP, UK Models Precautions Toyota Disassembly Flow Section DisassemblySUB Panel Assy Mechanism Deck MG-164MA-138 Main BoardHeat Sink Servo BoardMD Cover Assy Float BlockLO Motor Assy Loading M903 Lever LE23 AssyHolder Assy Chucking ARM AssyOptical PICK-UP KMS-241C SL Motor Assy Sled M902, SP Motor Assy Spindle M901MD Section Section Electrical AdjustmentsTuner Section Section Diagrams IC101 PCM1718E/2KCXA2523AR IC305 BA6287F IC401 TDA7402TR IC505 BA8270F-E2 Block Diagram Servo Section EFM/ACIRC ENCODER/DECODERBlock Diagram Tuner Section FM/AM Tuner UnitBlock Diagram Main Section 23 a 23 B 24 F 24 E 24 HBlock Diagram BUS CONTROL/POWER Supply Section +B SwitchSignal 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 Mvci XrasXWE AsyoSprd SrdrSfdr SpfdVCC XstbyVref WbladjDfctsel ResetEject DpllselUnireq ERROR-PWMLinkoff UnickioKEYIN1 VSMNIL KEYIN0PW on IIC SIOIIC CKO ColswSection Exploded Views General SectionFront Panel Section LCD901Mechanism Deck MG-164MA-138 159 157156 158 161Section Electrical Parts List KEYSWITCH, KEY Board with LED List SWITCH, Tactile with LED D-BASS KEY MainMain Diode DTZ-TT11-16B Ref. No Description Remark R18 Short R21 216-825-11 Main Sensor Servo VibratorInductor Chip Servo SUB Disc Slot Illumination CA680X505 501 502503 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.