Sony MDX-CA680 service manual IC305 BA6287F

Page 20

MDX-CA680/CA680X

 

 

 

 

 

 

 

 

 

 

IC303

BH6518FS-E2

 

 

 

 

 

 

 

 

 

 

 

 

CAPA–

CAPA+

IN2R

IN2F

VM2

OUT2F

PGND2

OUT2R

VM12

OUT1R

PGND1

OUT1F

VM1

IN1F

IN1R

VDD

 

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

 

 

 

INTERFACE

AMP

 

 

AMP

 

AMP

 

 

AMP

INTERFACE

VDD

 

CHARGE

 

PREDRIVE

 

 

 

 

 

 

 

PREDRIVE

 

 

 

PUMP.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OSC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PREDRIVE

 

 

 

 

 

 

 

PREDRIVE

 

 

 

 

 

INTERFACE

AMP

 

 

AMP

 

AMP

 

 

AMP

INTERFACE

PSB

 

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

 

GND

VG

IN4R

IN4F

VM4

OUT4F

PGND4

OUT4R

VM34

OUT3R

PGND3

OUT3F

VM3

IN3F

IN3R

PSB

IC305

BA6287F

 

 

 

 

 

 

 

 

 

 

 

 

OUT1

1

 

 

 

 

 

 

 

8

GND

 

 

 

 

 

 

VM

2

 

 

 

 

 

 

 

7

OUT2

 

 

 

 

 

 

 

 

 

 

DRIVER

 

DRIVER

 

 

 

 

 

 

 

 

 

 

 

 

TSD

 

 

 

 

 

 

 

 

 

 

 

 

 

VCC 3

6 VREF

 

CONTROL LOGIC

POWER

SAVE

FIN 4

5 RIN

IC307

MSM51V4400E-70TS-K

 

 

 

 

 

 

 

 

 

 

TIMING

 

TIMING

 

 

26

VSS

 

 

 

 

GENERATOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GENERATOR

 

 

 

 

DQ1

1

 

 

 

 

 

 

 

25

DQ4

DQ2

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24

DQ3

WE

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23

CAS

RAS

4

 

 

 

 

 

 

WRITE

 

 

 

 

 

 

22

OE

A9

5

 

 

 

 

COLUMN

I/O

 

 

 

 

CLOCK

21

NC

NC

6

 

COLUMN

 

 

DECODERS

SELECTOR

GENERATOR

NC

7

BUFFERS

 

 

 

 

 

20

NC

 

 

 

 

 

19

NC

NC

8

INTERNAL

REFRESH

SENSE

 

 

 

 

 

A8

 

 

ADDRESS

CONTROL

 

 

18

 

 

AMPLIFIERS

 

 

A0

9

ADDRESS

 

 

 

 

COUNTER

CLOCK

 

 

17

A7

 

 

INPUT

OUTPUT

A1

10

 

 

 

 

16

A6

 

 

 

 

BUFFERS

BUFFERS

A2

11

 

 

 

 

ROW

 

 

 

 

 

15

A5

A3

12

 

 

 

 

 

ROW

WORD

MEMORY

DATA BUS

14

A4

 

 

 

 

DECODERS

DRIVERS

CELLS

 

 

VCC

13

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

 

Image 20
Contents Specifications MDX-CA680/CA680XTable of Contents General DisassemblyElectrical Adjustments Exploded ViewsLocation of controls Section GeneralSetting the clock US model US model AEP, UK Models Precautions Toyota SUB Panel Assy Section DisassemblyDisassembly Flow 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 M901Tuner Section Section Electrical AdjustmentsMD 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 Xras XWEMvci AsyoSrdr SfdrSprd SpfdXstby VrefVCC WbladjReset EjectDfctsel DpllselERROR-PWM LinkoffUnireq UnickioVSM NILKEYIN1 KEYIN0IIC SIO IIC CKOPW on ColswSection Exploded Views General SectionFront Panel Section LCD901Mechanism Deck MG-164MA-138 157 156 158159 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 CA680X501 502 503505 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.