Sony CDX-MP40 service manual IC401 BD3802F Main Board, Pass

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CDX-MP40

IC401 BD3802F (MAIN Board)

				OUT-	OUT-	OUT-	OUT-
D-GND SDA	SCL MUTE SEL	ADJ	VCC	FR	RR	FL	RL	DS32 DS22 DS12

VCC

FADER

C BUS

(0~-58,

VCO

-∞dB)

LOGIC

OFF

EFFECT (OFF,6dB,

10dB,14dB)

TONE

PASS

BASS,TREBLE, MIDDLE

(-15dB~+15dB,1dB STEP)

VOLUME

(+23~-79dB,-∞dB

1dB STEP)

INPUT GAIN

(0~15dB,1dB STEP)

MUTE

INPUT SELECTOR

(4 STEREO INCLUDE 1 ISOLATION INPUT)

VCC/2

A-GND	FIL BUS-	AN	BUS-	TU-	TU-	CD-	CD-	D1	D2 DS11 DS21 DS31
	RCH		LCH	RCH	LCH	RCH	LCH

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Contents NEW SpecificationsCDX-MP40 Service NotesExtension Cable and Service Position Disassembly Table of Contents GeneralDiagrams Exploded ViewsUS, Canadian Model AEP, UK Model General CDX-MP40Connections US, Canadian Model Connections AEP, UK Model CDX-MP40 SUB Panel Assy CD CDX-MP40 Section DisassemblyMain Board CD Mechanism BlockChassis T SUB Assy Heat SinkServo Board Lever SectionShaft Roller ASSY, Load SW Board Optical PICK-UP Block Floating Block AssyIC PIN Descriptions CDX-MP40 Section DiagramsClose IC5 CXD9684R-005 DSP Servo Board IC801 MN101C49KSJ System Control Main Board NCO Circuit Boards Location Main Block Diagram CD SectionSection a Block Diagram Main SectionWaveforms 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 IC12 TC7SH08FU-TE85R IC Block DiagramsPass IC401 BD3802F Main BoardChassis Section CDX-MP40 Section Exploded Views56 X-3382-702-1 Panel ASSY, Front Back AEP,UK Front Panel SectionDisplay PANEL, Liquid Crystal Screw +P 2X10 TYPE2 NON-SLIT101 A-3274-253-A Disc in SW BOARD, Complete 112SCREW, Special 111 A-3274-698-A Servo BOARD, Complete159 A-3307-422-A Chassis M Complete Assy 155153 161 152 159202 CD Mechanism MG-393MC-121 207 208 209 211 210 201203 205 206 209Section Electrical Parts List CDX-MP40 Disc in SW Display CDX-MP40 Display KEY SWITCH, Tactile with LED SourceKEY CONNECTOR, FFC/FPC 6P ConnectorCDX-MP40 KEY Limit SW Load SW Main Main BOARD, Complete US,CND Main BOARD, Complete AEP,UKCDX-MP40 Main FERRITE, EMI SMD Diode UDZS-TE-17-5.6BJumper Resistor InductorCarbon Carbon SwitchUS,CND 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.