Sony MXD-D40 Service Manual

SERVICE MANUAL
COMPACT DISC MINIDISC DECK
US Model
Canadian Model
AEP Model
UK Model
E Model
SPECIFICATIONS
MXD-D40
US and foreign patents licensed from Dolby
Laboratories Licensing Corporation.
Photo: Gold type
CD player section
System Compact Disc digital audio system
Laser Semiconductor laser (λ = 780 nm)
Emission duration: continuous
Laser output Less than 44.6 µW*
* This output is the value measured at a
distance of 200 mm from the objective
lens surface on the Optical Pick-up
Block with 7 mm aperture.
Frequency response 5 to 20,000 Hz ±0.5 dB
Signal-to-noise ratio More than 98 dB
Wow and flutter Below measurable limit
MD deck section
System MiniDisc digital audio system
Disc MiniDisc
Laser Semiconductor laser (λ = 780 nm)
Emission duration: continuous
Laser output Less than 44.6 µW*
* This output is the value measured at a
distance of 200 mm from the objective
lens surface on the Optical Pick-up
Block with 7 mm aperture.
Laser diode properties Material: GaAlAs
Revolutions (CLV) 800 rpm to 1,800 rpm
Error correction Advanced Cross Interleave Reed
Solomon Code (ACIRC)
Sampling frequency 44.1 kHz
Coding Adaptive TRansform Acoustic Coding
(ATRAC)/ATRAC 3
Modulation system EFM (Eight-to-Fourteen Modulation)
Number of channels 2 stereo channels
Frequency response 5 to 20,000 Hz ±0.5 dB
Signal-to-noise ratio Over 98 dB during playback
Wow and flutter Below measurable limit
Inputs
Jack type Input
impedance
Rated
input
Minimum
input
ANALOG IN
Phono
jacks
47 kilohms 500 mVrms 125 mVrms
DIGITAL
OPTICAL IN
Square
optical
connector
jack
Optical wave
length:
660 nm
——
Ver. 1.2 2005.03
Model Name Using Similar Mechanism MXD-D5C
MD Mechanism Type MDM-7X2A
Optical Pick-up Name KMS-262A
Model Name Using Similar Mechanism MXD-D4
CD Mechanism Type CDM55B-21BD53
Base Unit Name BU-21BD53
Optical Pick-up Name OP Assy (A-MAX.2)
MD
Section
CD
Section
– Continued on next page –
9-929-578-13
2005C05-1
© 2005.03
Sony Corporation
Audio Group
Published by Sony Engineering Corporation

Sony MXD-D40 Specifications

General

Type	MiniDisc Deck
Playback Media	MiniDisc, CD
Recording Media	MiniDisc
Recording Formats	ATRAC
Sampling Rate Converter	Yes
CD to MD recording	Yes
Digital Inputs	Optical
Digital Outputs	Optical
Analog Inputs	RCA
Analog Outputs	RCA
Remote Control	Yes
Disc Capacity	74 minutes (MD)
Frequency Response	20Hz - 20kHz
Power Supply	AC 230V, 50/60 Hz

Summary

SPECIFICATIONS

CD/MD Deck Specifications

Details specifications for CD and MD playback systems, including laser and output.

Input/Output and General Specs

Covers input/output details, power requirements, dimensions, and supplied accessories.

SELF-DIAGNOSIS FUNCTION

Self-Diagnosis Procedures and Error Codes

Procedure, items, and error code table for diagnosing system issues.

SERVICING NOTES AND PROCEDURES

Servicing Notes and Handling Precautions

Precautions for servicing, handling optical pick-up, and laser checks.

Test Mode Operations

Procedures for entering, selecting, and operating service test modes.

Electrical Adjustments Overview

Flowchart for MD section checks and overall adjustment sequence.

CIRCUIT DIAGRAMS AND BOARDS

Block Diagrams and Waveforms

High-level functional diagrams and signal waveform examples.

Printed Wiring and Schematic Diagrams

Detailed circuit and layout diagrams for various boards.

IC Block Diagrams and Pin Functions

Diagrams and pin descriptions for integrated circuits.

EXPLODED VIEWS AND PARTS LIST

Exploded Views of Major Sections

Visual breakdown of external components, mechanisms, and chassis.

Electrical Parts List

Comprehensive list of electronic components for various boards.

REVISION HISTORY

Version Update Log

Records changes made in different versions of the manual.