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Sony MZ-R500PC User Manual

Sony MZ-R500PC
58 pages
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1
MZ-R500/R500PC
SERVICE MANUAL
Model Name Using Similar Mechanism NEW
Mechanism Type MT-MZR500-172
Optical Pick-up Name LCX-4R
System
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: λ = 790 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 lens surface
on the optical pick-up block with 7 mm
aperture.)
Recording and playback time
When using MDW-80
Maximum 160 min. in monaural
Maximum 320 min. in stereo
Revolutions
350 rpm to 2,800 rpm (CLV)
Error correction
ACIRC (Advanced Cross Interleave Reed
Solomon Code)
Sampling frequency
44.1 kHz
Sampling rate converter
Input: 32 kHz/44.1 kHz/48 kHz
Coding
ATRAC (Adaptive TRansform Acoustic
Coding)
ATRAC3-LP2
ATRAC3-LP4
SPECIFICATIONS
Modulation system
EFM (Eight to Fourteen Modulation)
Number of channels
2 stereo channels
1 monaural channel
Frequency response
20 to 20,000 Hz ± 3 dB
Wow and Flutter
Below measurable limit
Inputs
Line in: stereo mini-jack, minimum input
level 49 mV
Optical (Digital) in: optical (digital) mini-
jack
Outputs
i: stereo mini-jack, maximum output level
5 mW + 5 mW, load impedance 16 ohm
General
Power requirements
Sony AC Power adaptor connected at the
DC IN 3 V jack (AEP, Chinese and
Argentine models only):
230 V AC, 50/60 Hz (AEP model)
220 V AC, 50 Hz (Chinese model)
220 V AC, 50 Hz (Argentine model)
One LR6 (size AA) alkaline dry battery (not
supplied)
– Continued on next page –
US Model
Canadian Model
MZ-R500/R500PC
AEP Model
UK Model
E Model
Chinese Model
MZ-R500
US and foreign patents licensed from Dolby
Laboratories Licensing Corporation.
Ver 1.0 2001. 01
PORTABLE MINIDISC RECORDER
Ver 1.0 2001. 06
Sony Corporation
Personal Audio Company
Shinagawa Tec Service Manual Production Group
9-873-177-01
2001F0400-1
© 2001. 6
Photo: MZ-R500
This service manual contains the
information on the MZ-R500
(9-873-054-11).
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Sony MZ-R500PC Specifications

General IconGeneral
Sampling Frequency44.1 kHz
Channels2 (Stereo)
PC ConnectivityYes (via USB)
CategoryPortable
Frequency Response20 Hz - 20 kHz
Battery TypeAA battery x 2
FormatsMiniDisc
Battery LifeUp to 11 hours playback (AA)
Power Supply2 x AA batteries
Headphone OutputYes
Line OutputYes (stereo mini jack)
Line InputYes
USB PortYes
TypeMiniDisc Player/Recorder

Summary

SERVICE MANUAL

Specifications Overview

Detailed technical specifications for the MZ-R500/R500PC recorder.

SECTION 1 SERVICING NOTE

Handling Precautions for Optical Pick-up

Guidelines for safely handling the optical pick-up block and flexible board.

Laser Diode Emission Check

Safety instructions for checking the laser diode emission.

SECTION 2 GENERAL

Control Panel and Display Overview

Identification and function of the recorder's controls and display window.

G-PROTECTION Function

Explanation of the G-PROTECTION function for shock protection during playback.

SECTION 3 DISASSEMBLY

Case (Lower) Assembly

Procedure for disassembling the lower case assembly.

Case (Upper) Assembly

Procedure for disassembling the upper case assembly.

LCD Module Removal

Steps to remove the LCD module.

Main Board Removal

Procedure for removing the main board.

MD Mechanism Deck and Service Assy Removal

Steps to remove the MD mechanism deck and service assembly.

Holder and Motor Components Removal

Instructions for removing holder assembly, motor flexible board, and DC motors.

SECTION 4 TEST MODE

Test Mode Entry and Exit

Methods to enter and release the unit's test mode for diagnostics.

Test Mode Operation and Configuration

Setup of test mode functions and manual operation procedures.

Self-Diagnosis and Error Code Analysis

Using self-diagnosis mode to check history, error codes, and reset data.

Sound Skip and Key Check Modes

Performing sound skip error checks and verifying key operation.

SECTION 5 ELECTRICAL ADJUSTMENTS

Adjustment Precautions and Sequence

Guidelines and the correct order for performing electrical adjustments.

NV Reset and Parameter Changes

Procedures for resetting nonvolatile memory and modifying adjusted values.

Power Supply Manual Adjustment

Procedures for manual adjustment of power supply voltage control.

Temperature and Laser Power Adjustments

Steps for temperature correction and laser power checking.

Overall Adjustment Mode

Performing automatic adjustments for CD and MO discs.

Resume Clear and Patch Data Rewriting

Clearing resume data and rewriting patch data for microcomputer revisions.

SECTION 6 DIAGRAMS

IC Pin Function Description

Detailed pin functions for key integrated circuits used in the system.

Block Diagrams

System block diagrams illustrating servo, audio, and power control sections.

Waveforms

Visual representation of critical signal waveforms at various test points.

Printed Wiring Board Layouts

Layout diagrams showing component placement on the main board.

Schematic Diagrams

Detailed circuit schematics for the main board sections.

IC Block Diagrams

Functional block diagrams for major integrated circuits.

SECTION 7 EXPLODED VIEWS

Case (Lower) Section Exploded View

Illustrated breakdown of the lower case and its components.

Case (Upper) Section Exploded View

Illustrated breakdown of the upper case and its components.

Chassis Section Exploded View

Illustrated breakdown of the chassis and related parts.

MD Mechanism Deck Section Exploded View

Illustrated breakdown of the MD mechanism deck and its parts.

SECTION 8 ELECTRICAL PARTS LIST

Main Component Listings

Comprehensive list of electronic components like capacitors, resistors, and diodes.

Accessories and Packing Materials

List of included accessories, packing materials, and various manuals.

REVISION HISTORY

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