Sony CDX-MP40 service manual Block Diagram Main Section, Section a

Page 22

CDX-MP40

3-4. BLOCK DIAGRAM — MAIN SECTION —

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PJ401

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-1

BUS AUDIO IN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R-CH

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-5

AUDIO OUT FRONT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R-CH

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-6

 

 

 

 

 

 

 

 

IC401

 

 

 

 

 

 

 

 

-3

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AUDIO OUT REAR

 

 

 

 

 

 

 

INPUT SELECTOR,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ELECTRONIC VOLUME,

 

 

 

 

 

 

 

R-CH

R

 

 

 

 

 

 

 

SIGNAL PROCESSOR

 

 

 

 

 

 

IC501

-4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

AUX L

 

 

 

 

 

 

 

 

POWER AMP

CNP901

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R-CH CDR

8

CD R

OUT LF 19

 

 

 

 

 

12

5

1

FL+

 

 

 

 

 

 

 

 

 

 

 

 

 

3

9

FL-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Page 21)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TU501

CD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TUNER UNIT

SECTION A

CDL

9

CD L

OUT LR 18

 

 

 

 

 

11

9

2

RL+

 

 

 

 

 

 

 

 

 

 

 

 

7

10

RL-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PJ601

2

ANT

L

4

 

7

RADIO L

 

 

 

 

 

Q402

Q401

16

AUX

 

 

(ANTENNA)

 

 

 

 

 

 

MUTE

MUTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

FR+

 

 

 

R

 

 

 

 

OUT RF 21

 

 

 

 

 

 

 

 

 

 

3

 

 

 

R-CH

 

 

 

 

4

STBY

12

FR-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

27 SDA

OUT RR 20

 

 

 

 

 

22 MUTE

R-CH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

RR+

 

 

 

 

 

 

26 SCL

 

 

 

 

 

 

R-CH

 

 

11

RR-

 

 

 

 

 

 

25 MUTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q904,905

D921

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Page 21)

 

 

LINE MUTE

DELAY

BATT

 

 

 

 

 

 

 

 

 

 

IC801 (1/2)

 

 

 

SWITCH

 

 

 

 

 

 

 

 

 

AEP,UK MODEL

 

 

 

CD

B

A-ATT

D701

 

 

 

 

 

 

 

 

 

 

 

SYSTEM CONTROL

SECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D819

 

 

 

 

 

 

 

 

QUALITY

5

 

7

QUALITY

 

ATT 67

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

70 VOL ATT

 

BEEP 35

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AMP ON 72

 

 

 

 

 

 

 

 

 

 

 

 

 

Q602

 

 

 

AMP ATT 74

 

 

 

 

 

Q901

13

ATT

 

 

 

 

 

85

NS_MASK

TEL ATT 40

 

 

 

 

 

 

TEL

 

 

 

 

NS MASK

 

 

 

 

 

 

 

 

 

ATT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q902

 

 

 

 

 

 

SWITCH

 

 

 

ACC IN 38

 

 

 

 

 

 

7

ACC

 

 

 

 

 

 

 

 

 

 

 

 

ACC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DETECT

 

 

 

S-METER

 

 

 

 

 

 

 

 

TEST IN 37

 

IC902

 

 

 

 

 

 

 

 

 

15

TEST

6

 

 

 

 

 

 

2

VSM

 

 

BU+5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SDA 14

 

 

 

 

 

 

45 I2C SIO

BU+3.3V

3

+3.3V

 

 

Q903,D916

BATT

BATT

Q920

 

 

 

5

AMP R

SCL 13

 

 

 

 

 

 

47 I2C CKO

REG

2

 

 

+5V REG

AMP B+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TUNER

 

 

 

 

+8V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q922

 

 

 

TU MUTE

7

 

 

 

 

 

 

88

TU MUTE

+8V

 

 

 

 

 

 

 

 

 

 

6

ANT R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANT B+

 

 

 

 

 

 

 

TUNER

Q911,D918,919

Q909,910

 

Q906,D917

 

 

 

 

MUTE CONDITION

8

 

 

 

 

 

 

30

TU ATT IN

 

BATT

 

 

SWITCH

 

 

 

 

 

 

 

 

 

TUNER +5V

TUNER ON

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

+5V

+8V REG

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

REG

 

SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SDA(EEP) 17

 

 

 

 

 

 

87

EE SIO

 

 

 

 

 

 

 

 

 

Q921

Q917

BATT

19

 

SCL(EEP) 16

 

 

 

 

 

 

86

EE CKO

 

 

 

 

 

 

Q907,908

 

 

 

 

 

 

 

 

 

 

 

 

CD

 

 

 

 

AMP REM

ANT REM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

17

 

 

AEP,UK MODEL

 

 

 

 

 

 

 

 

SYSRST

 

 

POWER ON

 

 

CONTROL

CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SECTION

 

CONTROL

 

 

SWITCH

SWITCH

F901

 

 

 

 

 

IC601

 

 

 

 

 

 

 

 

(Page 21)

 

 

 

 

 

 

 

10A

 

 

 

 

 

RDS DECODER

 

 

 

TU ON 69

 

 

 

 

 

 

 

 

 

 

 

 

18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RDS DET

9

16 MPX

 

 

 

 

 

POW ON 50

 

 

 

 

 

 

 

 

 

 

 

 

16

+B (BATT)

 

 

 

 

 

SDA

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC802

 

 

 

 

 

 

 

 

 

SCL

10

 

 

 

 

D810

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

OSCO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X601

 

 

 

 

 

RESET

33

 

 

 

 

 

 

 

 

1

 

2

BU+5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESET

 

 

 

4.332MHz

OSCI

 

DAVN

8

 

27

DAVN(NIL)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

CNJ801

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC803

 

 

BUS

 

S801

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D808

 

 

 

CONTROL IN

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

RESET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BUS INTERFACE

 

Q802

8

 

 

 

 

• Signal path

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BUSON

1

6

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SYSRST 24

 

13 RST

 

 

5

2

 

 

 

 

 

:FM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BUSON 25

 

12

BUSON

DATA I/O

6

 

4

1

 

 

 

 

 

:AM(MW/LW)

 

 

 

 

 

 

 

 

 

BUSSI 43

 

8

DATA OUT

CLK

4

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BUSCKO 44

 

11

CLK IN

 

 

 

 

 

 

 

 

 

:CD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BUSSO 42

 

9

DATA IN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BATT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BU IN 28

 

10

B/U-C

 

 

 

 

 

 

 

 

 

:CD-R/RW(MP3)

 

 

 

 

 

 

IC701

 

 

 

RST

2

 

 

 

 

 

 

 

 

 

 

 

BU-CHECK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BUFFER

 

 

 

 

 

 

 

 

 

D802

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D818

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BUSON

2

6

 

 

 

 

 

 

BATT

3

 

 

BATT

 

 

 

 

 

 

 

CD

 

BUS-SI

 

 

5

3

 

 

 

 

 

 

 

 

Q801,D801

 

 

 

 

 

 

 

 

D

BUS-CLK

 

 

 

7

1

 

 

 

 

 

 

 

BATT

 

 

 

 

 

 

 

SECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BATT DET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q804

 

 

 

 

 

 

 

 

 

 

 

 

(Page 21)

 

BUS-SO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BUS-SO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LINK-OFF

 

 

 

 

 

 

 

 

SWITCH

Q805,806

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LIMNKOFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SWITCH

 

 

 

 

 

 

 

 

 

22 22

Image 22
Contents Specifications NEWService Notes CDX-MP40Extension Cable and Service Position Diagrams Table of Contents GeneralDisassembly Exploded ViewsGeneral CDX-MP40 US, Canadian Model AEP, UK ModelConnections US, Canadian Model Connections AEP, UK Model CDX-MP40 CDX-MP40 Section Disassembly SUB Panel Assy CDCD Mechanism Block Main BoardHeat Sink Chassis T SUB AssyLever Section Servo BoardShaft Roller ASSY, Load SW Board Floating Block Assy Optical PICK-UP BlockCDX-MP40 Section Diagrams IC PIN DescriptionsClose IC5 CXD9684R-005 DSP Servo Board IC801 MN101C49KSJ System Control Main Board NCO Circuit Boards Location Block Diagram CD Section MainBlock Diagram Main Section Section aWaveforms Servo Board Block Diagram Display SectionMain Board IC7 IC1 IC2 IC3 IC4 IC5Side B CN1 FB3 IC B/D IC B/D JW1 PJ601 C629 JR601 Q602 Semiconductor Location FMA3 FMB6 Schematic Diagram RELAY, KEY Section US, Canadian Model FMB5 Schematic Diagram RELAY, KEY Section AEP, UK Model IC Block Diagrams IC12 TC7SH08FU-TE85RIC401 BD3802F Main Board PassCDX-MP40 Section Exploded Views Chassis SectionDisplay PANEL, Liquid Crystal Front Panel Section56 X-3382-702-1 Panel ASSY, Front Back AEP,UK Screw +P 2X10 TYPE2 NON-SLITSCREW, Special 112101 A-3274-253-A Disc in SW BOARD, Complete 111 A-3274-698-A Servo BOARD, Complete155153 161 152 159 159 A-3307-422-A Chassis M Complete Assy203 CD Mechanism MG-393MC-121 207 208 209 211 210 201202 205 206 209Section Electrical Parts List CDX-MP40 Disc in SW Display SWITCH, Tactile with LED Source CDX-MP40 Display KEYKEY CDX-MP40 KEY Limit SW Load SW Main ConnectorCONNECTOR, FFC/FPC 6P Main BOARD, Complete US,CND Main BOARD, Complete AEP,UKCDX-MP40 Main Jumper Resistor Diode UDZS-TE-17-5.6BFERRITE, EMI SMD InductorUS,CND Carbon SwitchCarbon Metal OxideCDX-MP40 Main Relay Servo CDX-MP40 Servo 251252 253 254 255 256 257 258 Memo CDX-MP40 Revision History

CDX-MP40 specifications

The Sony CDX-MP40 is a versatile car audio receiver designed to enhance the in-car listening experience. Known for its combination of modern features and reliable performance, this model has gained popularity among music enthusiasts who value both functionality and sound quality.

At the core of the CDX-MP40 is its CD playback capability, allowing drivers to enjoy their favorite albums on the go. The device is compatible with CD-Rs and CD-RWs, ensuring a wide range of playback options. In addition to traditional CDs, the CDX-MP40 stands out with its MP3 playback capability, enabling users to load hundreds of tracks onto a single disc. This eliminates the clutter of multiple CDs, making music access more convenient during long drives.

One of the key features of the CDX-MP40 is its front auxiliary input, which allows for seamless connection of external devices such as smartphones and MP3 players. This connectivity expands the range of audio sources available to users and makes it easy to stream music from various devices. Moreover, the receiver offers an option for optional USB connectivity, providing even more versatility for music playback.

The CDX-MP40 also benefits from advanced technologies to improve sound quality. With 52 watts of peak power per channel, this unit delivers robust audio performance that can fill any car with rich sound. The built-in EQ (equalizer) presets allow users to customize their audio settings based on musical preferences, while the additional power output ensures that even at high volumes, the sound remains clear and undistorted.

Safety and usability are also prioritized in the design of the CDX-MP40. The user interface is straightforward, featuring a large, easy-to-read display and intuitive controls, making it user-friendly for drivers. The electronic skip protection feature minimizes playback interruptions, ensuring a smooth listening experience even on bumpy roads.

In summary, the Sony CDX-MP40 is a well-rounded car audio solution, equipped with essential features such as CD and MP3 playback, auxiliary input, and USB connectivity. With powerful audio performance and user-friendly controls, it caters to a wide array of audio preferences, making it an excellent choice for anyone looking to upgrade their in-car entertainment system. Its blend of modern technology and classic functions establishes the CDX-MP40 as a reliable option for car audio enthusiasts.