Tascam CD-450 Service Manual

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TASCAM
TEAC Professional
Division
SERVICE
MANUAL
-450
Compact
Disc Player
NOTES
•
PC boards shown are viewed
from pans side.
•
7'jy
•
Pans marked
with
*
require longer delivery time.
•
The pans with no reference
number or rto pans number in
the
exploded
views are not supplied.
•
As regards the resistors
and capacitors, refer
to the circuit
diagrams contained in
this manual.
•
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Parts marked with
this sign are safety critical
components.
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They must
be replaced with identical
components
-
refer to the
appropriate
parts list and ensure exact replacement.
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•
Parts of
[ ]
mark can be used only with
the version designated. •
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[J]
JAPAN
[US/C];U.S. A. /CANADA [K]; KOREA
[E]; EUROPE [J]:JAPAN
:US/C];U.S. A. /CANADA
[KJiKOREA [E]:EUR0PE
[UKliU.K. [A];AUSTRALIA
[UK]:U.K. lA!: AUSTRALIA
tNSTRUCTIONS FOR
SERVICE PERSONNEL
BEFORE RETURNING APPLIANCE
TO THE CUSTOMER. MAKE
LEAKAGE
-
CURRENT
OR
RESISTANCE MEASUREMENTS TO DETERMINE
THAT EXPOSED
PARTS ARE
ACCEPTABLY INSULATED
FROM THE SUPPLY CIRCUIT.
Effective : January, 1
999
D00478000A

Tascam CD-450 Specifications

General

Brand	Tascam
Model	CD-450
Category	CD Player
Language	English

Summary

Service Manual Overview and Safety Notes

General Service Notes and Part Information

Covers PC board views, part numbering, and supply status for service.

Safety Critical Component Identification

Highlights critical parts and replacement requirements for safety.

Service Personnel Safety Procedures

Electrical Safety Checks for Service

Essential safety check for leakage current and resistance before customer return.

Product Safety and Laser Warnings

Laser Product Classification and Compliance

Explains FDA regulations and Class 1 laser designation for the product.

Laser Warning Labels and Usage Precautions

Details warning labels and hazards associated with laser operation.

Technical Specifications and Performance

Analog and Digital Output Specifications

Details output levels, impedance, and digital formats for audio signals.

Performance Characteristics Summary

Covers frequency response, SNR, distortion, and channel separation.

Physical and Power Specifications

Lists dimensions, weight, and power requirements for the unit.

Pickup Assembly Handling and Maintenance

Electrostatic Discharge (ESD) Protection

Emphasizes grounding and protection against ESD during handling.

LD Terminal Strapping and Soldering

Specific instructions for handling and soldering LD terminals.

Material Handling and Disposal Guidelines

Notes on toxic materials and proper disposal procedures.

Objective Lens Care and Cleaning

Objective Lens Cleaning Procedure

Guidance on cleaning the objective lens to maintain playback quality.

Pickup Actuator and Audio Checks

Pickup Actuator Operation Verification

Procedure to check pickup actuator movement upon power on.

Focus Offset and Audio Performance Tests

Procedures for focus offset measurement and audio performance testing.

Exploded Views - Main Assembly

Component Breakdown Diagram - View 1

Visual representation of the main unit's parts with reference numbers.

Exploded View 1 Parts List

Component Identification and Part Numbers

Detailed listing of parts for Exploded View 1, including part numbers.

Exploded Views - Mechanical Components

Component Breakdown Diagram - View 2

Visual representation of the unit's mechanical components with reference numbers.

Exploded View 2 Parts List

Component Identification and Part Numbers

Detailed listing of parts for Exploded View 2, including part numbers.

Printed Circuit Board Diagrams

Trans PCB and Headphone PCB Layouts

Diagrams showing the component layout for the Trans and Headphone PCBs.

Power Switch PCB Layout

Diagram showing the component layout for the Power Switch PCB.

Main PCB Component Layout

Main PCB Detailed Diagram

Detailed layout of the Main PCB, showing component placement.

Front and Option PCB Layouts

Front PCB Component Layout

Diagram of the front panel PCB, showing component placement.

Option PCB Component Layout

Diagram of the optional board, showing component placement.

Gather PCB A Assembly Parts List

Component Identification for Gather PCB A

Detailed parts list for the Gather PCB A assembly.

Gather PCB B Assembly Parts List

Component Identification for Gather PCB B

Detailed parts list for the Gather PCB B assembly.

Included Accessories

Accessory Identification and Description

Lists bundled items such as manuals and remote control.