Sony MDX-CA680 service manual Block Diagram Main Section, 23 a 23 B 24 F 24 E 24 H

Page 25

MDX-CA680/CA680X

4-3. BLOCK DIAGRAM – MAIN Section –

 

 

 

 

 

PJ401 (1/2)

L

 

 

 

 

 

 

BUS

 

DADT,

 

 

 

 

AUDIO IN

R

 

 

 

 

 

 

 

BCK,

 

 

 

 

 

 

 

LRCK,

 

 

 

 

 

 

VOUTL

FS256

DADT

DATA

INPUT INTERFACE

 

 

D/A COMVERTER

DIGITAL FILTER

NOISE SHAPER

 

 

BCK

5

 

 

BCK

 

 

 

 

 

 

LRCK

6

 

 

 

 

VOUTR

 

LRCK

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

FS256

XTI

CLK

MODE

 

 

 

 

1

CONTROL

CONTROL

 

 

 

 

 

 

 

MD-RST,

 

 

 

 

 

DIGITAL FILTER,

DEEMP

MD-RST

RSTB

 

 

 

 

 

 

D/A CONVERTER

 

 

15

 

DM1

DM0

IC101

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

16

 

 

DEEMP

AM

MPX

DATA, CLOCK

S-METER

 

 

 

 

 

INPUT SELECT,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ELECTRICAL VOLUME, FM MPX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R-CH

 

 

 

IC401

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FD1L+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

INPUT MULTIPLEXER

 

 

LOUDNESS/

 

SOFT

 

 

TONE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

R-CH

 

 

 

 

 

 

MUTE

 

MUTE

 

LOUDNESS

 

OUTPUT SELECTOR

 

 

 

 

 

 

 

 

 

 

 

12

1

SEL

 

 

 

 

VOLUME

 

 

CONTROL

 

 

 

 

MONO

 

 

 

 

OUTLF

30

 

 

11 AM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FADER

 

 

MIXER

OUTLR 29

 

 

 

 

AMIF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

AM/FM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOISE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLANKER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13 MPX

 

 

 

 

 

 

 

 

 

DEMODULATOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PILOT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L.P.F.

 

 

 

 

 

+STEREO ADJUST

 

L.P.F.

 

S & H

 

HIGH-CUT

 

R-CH

 

 

 

 

 

 

 

 

 

 

 

 

 

CANCELATION

 

+STEREO BLEND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PLL

 

 

PILOT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MULTIPATH

 

 

 

 

D/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DETECTOR

 

 

 

CONVERTER

 

 

 

 

 

 

 

 

 

 

 

 

 

DIGITAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IIC BUS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SDA

SCL

 

 

 

 

SM

MPIN

 

 

 

 

 

 

LEVEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

21

 

 

 

 

 

 

18

 

15

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

DATA

CLOCK

 

45

47

70

IC501 (2/3)

IICSIO

IICCKO

VOLATT

SYSTEM CONTROLLER

 

 

 

 

 

 

PJ401 (2/2)

 

 

 

 

 

 

L

 

 

 

MUTING

 

 

AUDIO OUT

 

 

Q431

 

 

 

 

 

 

FRONT

 

 

 

 

 

R-CH

 

 

 

R

 

 

 

MUTING

 

 

 

 

 

Q441

 

 

 

 

 

 

 

L

 

 

 

MUTING

 

 

AUDIO OUT

 

 

Q451

 

 

REAR

R-CH

 

 

 

R

 

 

 

MUTING

 

 

 

 

 

Q461

 

 

 

 

 

 

POWER AMP

 

CN601 (1/2)

 

 

 

IC611

 

 

 

 

FL+

5

1

 

 

 

FRONT L+

 

 

12

FL-IN

 

9

 

 

 

FL–

3

 

 

 

FRONT L–

 

 

 

FR+

21

4

 

 

 

FRONT R+

 

 

14

FR-IN

 

12

 

 

 

FR–

23

 

 

 

FRONT R–

 

 

 

RL+

9

2

 

 

 

REAR L+

 

 

11

RL-IN

 

10

 

 

 

RL–

7

 

 

 

REAR L–

 

 

 

RR+

17

3

 

 

 

REAR R+

 

 

15

RR-IN

 

11

 

 

 

RR–

19

 

 

 

REAR R–

BEEP

35

16

AUX IN

 

 

AMPATT

66

22

MUTE

 

 

J561

REMOTE IN

RCIN0

RCIN1

KEYIN0

KEYIN1

RE IN0

RE IN1

KEYACK

6

98

5

4

97

96

26

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D665

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LSW901 – 911,

 

 

 

ROTARY

 

LSW914 – 919,

 

 

 

ENCODER

 

 

S902 – 907

 

 

 

RE901

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(VOLUME CONTROL)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XKEYON

91

KEY ACTIVE

 

U-COM +5V

SWITCH

 

 

Q664

 

 

 

 

 

S701

(NOSE DETECT)

NOSESW

34

DOORSW

 

LCDSO

LCDCKO

LCDCE

OSCOUT

OSCIN

XOUT

XIN

ATT

94

 

18

20

19

12

13

16

15

69

 

CN701

 

 

 

 

X501

 

X502

 

9

 

 

 

18.432MHz

32.768kHz

 

MAIN UNIT SIDE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN901

78

77

76

 

 

 

 

 

1

DATA-LCD

CLK-LCD

CE-LCD

 

 

 

 

 

FRONT PANEL SIDE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OSC

74 OSC

LCD DRIVER

AMBER

80

 

 

 

 

IC900

 

 

 

 

 

 

GREEN

79

 

 

 

C953, R957

 

 

 

 

 

D502

 

SEG03

– SEG66

COM1 – COM4

 

 

 

 

 

 

 

 

 

1 – 64

 

65 – 68

 

 

 

 

 

 

 

 

 

AMPON 67

 

 

 

4 STNBY

TELATT

TEST IN

 

 

 

 

 

 

 

 

 

 

40

 

37

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEVEL SHIFT

TEL-ATT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q651

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D479

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BATTERY OFF

 

 

 

 

 

 

 

BACK-UP B+

 

 

 

 

 

 

 

 

 

 

 

 

 

MUTE DRIVER

 

 

 

R-ch is omitted due to same as L-ch.

 

 

 

 

 

 

 

 

 

Q479

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• SIGNAL PATH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

: MD PLAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

: FM

 

 

 

MUTING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

: MW/LW

 

 

 

CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q478

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

: BUS AUDIO IN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EJKT

MD-ATT

LCD901

LIQUID CRYSTAL DISPLAY

 

 

 

 

COLOR

 

 

 

 

 

 

 

 

 

SELECT

LED900 – 903, 905, 906,

 

 

 

 

Q901, 902

 

 

 

 

 

 

 

LED909, 910, 913, 914,

 

(MDX-CA680)

 

LSW901 – 911, 914 – 919

 

 

 

 

 

25 25

Image 25
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.