Pioneer PD-6050 Service Manual

© <riw the sereicing these models, please refer to the following service ruiarsisai.
o PD-7050/KU, KC, HEM, HB, SD types and PD-7050-S/HEM type; ARP1331
o PD-6050/KU, KC, HEM, HB, SD, SD/G types and PD-6050-S/HEM type; ARP1329
o PD-5050/HEM, HBtypesand PD-5050-S/HEM type;ARP1330
e PD-40S0/KU, KC, HEM, HB, HP, SD, SD/G types and PD-405G-S/HEM, HB types; ARP1332
CONTENTS
1. IC DATA 2
2. OPTICAL PATH IN THE PICK-UP 8
3. BLOCK DIAGRAM 11
4. CIRCUIT DESCRIPTIONS . 13
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1 -Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE INC. P.O. Box 1760, Long Beach, California 90801 U.S.A.
PIONEER ELECTRONICS OF CANADA, INC. 505 Cochrane Drive, Markham, Ontario L3R 6B8 Canada TEL: [416] 479-4411
PIONEER ELECTRONIC [EUROPE] N.V. Keetberglaan 1, 2740 Beveren, Belgium TEL: 03/775 -28-08
PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 178-184 Boundary Road, Braeside, Victoria 3195, Australia TEL: [03] 580-9911
MT ©MAR. 1987 Printed in Japan

Pioneer PD-6050 Specifications

General

Type	CD Player
Channels	2
Digital Outputs	Coaxial
Disc format	CD
Frequency Response	2Hz to 20kHz
Output Level	2.0V
Channel separation	100dB
Line output	2V

Summary

IC Data

PD3091A IC Terminal Description

Details pin functions and descriptions for the PD3091A IC.

PD3092A IC Terminal Description

Details pin functions and descriptions for the PD3092A IC.

PD3093A IC Terminal Description

Details pin functions and descriptions for the PD3093A IC.

Optical Path and Pick-up Features

Optical Path Configuration

Explains the light path from laser diode to photodiode.

Key Optical Component Features

Highlights characteristics of LD, objective lens, and half mirror.

RF and Servo Signal Generation

Describes how optical signals are converted to RF and servo signals.

System Block Diagram

PD-7050 Overall Block Diagram

Illustrates the main functional blocks and their interconnections.

Circuit Descriptions

Accurate Focus Servo System

Describes the focus servo system and its operation.

CXA1082AS IC Functions

Details servo, control, and filter functions managed by the CXA1082AS IC.

CXA1081S IC Signal Processing

Explains RF amplification, error detection, and signal processing circuits within the CXA1081S.

TOC Reading Process

Outlines the steps for reading the Table of Contents.

Carriage Servo System Operation

Explains the operation of the carriage servo.

Demodulator Functions

Lists the capabilities of the demodulator IC.

Digital Level Control

Describes the digital attenuator for audio level adjustment.