Sony CDP-470 Service Manual

BRE
SERVICE MA
US Model
Canadian Model
AEP Model
E Model
CDP-270
US Model
Canadian Model
AEP Model
UK Model
E Model
’ SPECIFICATIONS
Frequency response 2Hz—20kHz (+1dB)
Signal-to-noise ratio More than 100dB
Dynamic range More than 90dB
Harmonic distortion (1 kHz)
Less than 0.09%
Channel separation More than 95dB (1 kHz)
Outputs LINE OUT (photo jacks)
Output level 2V (at 50kilohms)
Load impedance over 10kilohms
General
US, Canadian model: 120V AC, 60Hz
AEP model: 220V AC, 50/60Hz
UK model: 240V AC, 50/60Hz
E model: 110—120V or 220—240V
AC adjustable, 50/60 Hz
US, Canadian model: 12W
EXCEPT US, Canadian model:
10W
Dimensions (approx. including projections)
AEP, UK model:
430 x 100x 275mm (17x4x 10 inches)
EXCEPT AEP, UK model:
430 x95 x 275mm (17x3%x10inches)
3.5kg (7 Ibs 1202)
Power reqirements
Power consumption
Weight (approx.)
CDP-470
TABLE OF CONTENTS
Section Title Page
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SECTION 1. GENERAL
1-1. Location and Function of Controls... 4
1-2. Description on IC6 (MSC6458). ...... 5
SECTION 2. ADJUSTMENTS ......... 7
SECTION 3. DIAGRAMS
3-1. Semiconductor Lead Layouts ..... 10
3-2. Printed Wiring Boards ......... 11
3-3, Schematic Diagram. .......... 13
3-4. IC Block Diagrams ........... 16
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SECTION 4. EXPLODED VIEWS ....... 18
SECTION 5. ELECTRICAL PARTS LIST... 21
SUPPLEMENT? » 32 chee ee 2 Se “QS
OMPACT DISC PLAYER
SON Y.

Sony CDP-470 Specifications

General

Type	CD Player
Disc format	CD
Channels	2
Frequency Response	2 Hz to 20 kHz
Dynamic Range	96dB
Signal-to-Noise Ratio	100 dB
Channel separation	100dB
Power Consumption	15 W
Digital converter	1-bit D/A converter
Output	2V RMS
Digital Output	Optical
Dimensions	430 x 110 x 295mm

Summary

CDP-270/470 Safety and Servicing

Safety Check-out and Leakage Test Procedures

Procedures and limits for ensuring safe operation and checking AC leakage.

Laser Beam Safety Precautions During Servicing

Guidelines for protecting eyes from laser radiation during servicing.

CDP-270/470 General Information (Section 1)

CDP-270/470 Adjustments (Section 2)

RF PLL Frequency Adjustment and Lock Check

Procedure for adjusting and checking the RF PLL frequency.

Optical Pick-up Focus Bias Adjustment

Procedure for adjusting focus bias after replacing the Optical Pick-up Block.

Optical Pick-up E-F Balance Adjustment

Procedure for adjusting E-F balance after replacing the Optical Pick-up Block.

Optical Pick-up Focus/Tracking Gain Adjustment

CDP-270/470 Diagrams: Layouts and Boards (Section 3)

CDP-270/470 Diagrams: Schematic and Waveforms (Section 3)

Main Schematic Diagram

IC Internal Block Diagrams

Signal Waveforms

CDP-270/470 Exploded Views: General (Section 4)

CDP-270/470 Exploded Views: BU-5C Mechanism (Section 4)

CDP-270/470 Electrical Parts List (Section 5)