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Cyrus CD6s User Manual

Cyrus CD6s
35 pages
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SERVICE MANUAL
SPECIFICATIONS
Audio output 2.1Vrms
Frequency response 20Hz-20kHz
Distortion <0.002%, (ref. 1kHz, 0dB)
S/N ratio 110dBA
Dynamic range >100dB (20Hz-20kHz)
Channel separation >110dB (1kHz), >90dB (20kHz)
Digital output Optical SPDIF
Clock jitter <100ps
Dimensions (H x W x D) 73 x 215 x 360 (mm), 2.8 x 8.4 x14.1 (inches)
Weight 3.1kg
CYRUS CD6s
CD PLAYER
17
59
:
57
CD 6 s
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Cyrus CD6s Specifications

General IconGeneral
TypeCD Player
Disc CompatibilityCD, CD-R, CD-RW
Digital OutputsCoaxial, Optical
Frequency Response20 Hz - 20 kHz
Signal to Noise Ratio>100dB
Total Harmonic Distortion< 0.002%
Analog OutputsRCA
Dimensions215 x 73 x 360 mm

Summary

Specifications

Audio Output

Details the audio output voltage level.

Frequency Response

Specifies the audio frequency range handled by the player.

Distortion

Quantifies the signal distortion levels at specified frequencies.

S/N Ratio

Indicates the signal-to-noise ratio performance of the unit.

Dynamic Range

Measures the difference between the loudest and quietest audible signals.

Channel Separation

Measures the degree of crosstalk between audio channels.

Digital Output

Specifies the type of digital audio output interface available.

Clock Jitter

Measures timing inaccuracies in the digital audio clock signal.

Dimensions

Provides the physical size measurements of the CD player.

Weight

States the overall weight of the Cyrus CD6s unit.

Cyrus CD6s Service Cautions

Electrical Shock Hazard

Warns about removing covers and the absence of user-serviceable parts.

Live Mains Voltage Warning

Alerts technicians to exposed live mains voltages on the PCB.

Static Discharge Precautions

Outlines essential steps to prevent static damage to components.

Caution Label Locations

Shows positions of warning labels, including laser safety warnings.

Cyrus CD6s SMD Component Replacement

Handling SMD Components

Guidelines for storing and handling surface-mount devices safely.

Measuring SMD Circuits

Advice on measuring voltages on PCB pads without damaging components.

Static Precautions for SMD

Specific static protection measures for working with SMD components.

Soldering/Desoldering SMD Components

Techniques and tools required for SMD soldering and removal.

SMD Component Removal Procedures

Step-by-step guide for removing SMD components from the PCB.

SMD Component Fitting Procedures

Step-by-step guide for fitting replacement SMD components.

Cyrus CD6s Type Identification

Rating Label Details

Information found on the product's rear rating label.

Serial Number Information

Explains the meaning and importance of the product's serial number.

PCB Identification

Details PCB revision numbers for service correspondence.

Cyrus CD6s Block Diagram

Cyrus CD6s Technical Description

PCB Assemblies Overview

Description of the two main internal PCBs found in the CD6s.

Microprocessor Control System

Details the microcontroller and its role in system control.

Control Software

Information on software installation, updates, and version checking.

Disc Reading/Decoder Module

Describes the laser pickup and servo PCB functionality.

Digital to Analogue Conversion

Explains the D/A conversion process and associated components.

DAC Master Clock Generation

Explains how the DAC master clock is generated via PLL.

Power Supplies Overview

Details the internal power supply derivation from the toroidal transformer.

Front Panel Display

Describes the LCD module and its interface with the microcontroller.

Cyrus CD6s Fault Finding/Disassembly

Disc Read Failure Troubleshooting

Steps to diagnose and fix issues where discs are not being read.

Loading Mechanism Disassembly

Procedure for removing the disc loading mechanism and laser pickup.

Front Panel PCB Removal

Steps for removing the front panel assembly and its printed circuit board.

Power Transformer Removal

Procedure for safely removing the power transformer unit.

Audio Signal Faults

Troubleshooting steps for cases of missing audio output.

MC-Bus Communication Issues

How to troubleshoot lack of response to MC-Bus commands.

Cyrus CD6s Alignment

Alignment Requirements

States that no specific alignment is required during maintenance.

Cyrus CD6s Control Software

Flash Software Installation

Process for installing or upgrading the unit's control software.

Software Version Control

Method for checking and managing installed software versions.

Cyrus CD6s Use with a PSX-R

PSX-R Compatibility

Notes the lack of direct PSX-R external power supply connection.

Cyrus CD6s MCBus Operation

MC-Bus System Explanation

Describes the MC-Bus communication system between Cyrus products.

MC-Bus System Tests

How to test the MC-Bus connection and functionality.

Cyrus CD6s Chassis Parts Drawing

Cyrus CD6s Chassis Parts List

Main Chassis Parts

List of components for the main chassis assembly.

Cyrus CD6s Front Panel Parts Drawing

Front Panel Parts Identification

Identification of components located on the front panel.

Cyrus CD6s PCB Parts List

Resistors

List of resistors with their specifications and values.

Capacitors

List of capacitors with their specifications and values.

Diodes

List of diodes with their specifications and types.

Transistors

List of transistors with their specifications and types.

Integrated Circuits

List of integrated circuits with their specifications and descriptions.

Voltage Regulators

List of voltage regulators with their specifications.

Filters, Inductors & Crystals

List of filters, inductors, and crystals with specifications.

Connectors and Sockets

List of connectors and sockets with their specifications.

Other Parts

List of miscellaneous parts not categorized elsewhere.

Cyrus CD6s Circuit Diagrams

Circuit Diagram Index

Lists the available circuit diagrams and their respective content.

Sheet 1: Connectors & Digital Audio Outputs

Diagram showing connectivity and digital audio output circuits.

Sheet 2: Clock Generation

Diagram illustrating the clock generation circuitry.

Sheet 3: Left & Right DAC and Analogue Filter

Diagram of the Digital-to-Analogue Converter and analogue filter stages.

Sheet 4: Microcontroller Circuit

Diagram detailing the microcontroller and associated components.

Sheet 5: Power Supply Unit (PSU)

Diagram of the CD6s power supply unit.

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