Pioneer MJ-D508 Service Manual

ORDER NO.
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER ELECTRONIC (EUROPE) N.V . Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER ELECTRONIC CORPORATION 1999
7. GENERAL INFORMATION .............................. 49
7.1 DIAGNOSIS ................................................ 49
7.1.1 TROUBLESHOOTING ...................... 49
7.1.2 DISASSEMBLY ................................. 52
7.2 PARTS ....................................................... 55
7.2.1 IC ....................................................... 45
7.2.2 DISPLAY ........................................... 66
8. PANEL FACILITIES AND SPECIFICATIONS
....................................................... 68
MINIDISC RECORDER
RRV2144
MJ-D508
1. SAFETY INFORMATION.................................... 2
2. EXPLODED VIEWS AND PARTS LIST ............. 4
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
....................................................... 12
4. PCB CONNECTION DIAGRAM ....................... 28
5. PCB PARTS LIST ............................................. 37
6. ADJUSTMENT.................................................. 41
CONTENTS
T–ZZE MAY 1999 Printed in Japan
Type
Power Requirement
Remarks
Model
MJ-D508
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
KUXJ ‡ AC120V
MYXJ ‡ AC220–230V
MYXJGR/FR ‡ AC220–230V
NVXJ ‡ AC230V
DAC
MODE
INPUT
SELECTOR
DISPLAY
/CHARA
NAME
CLIP
REC/PLAY
MODE
SYNCHRO
REC
DIGITAL
REC LEVEL
4 ¢
ANALOG
REC LEVEL
EDIT/NO
!⁄ ¶
&*#
NAME
PUSH ENTER
LEVELPHONES
MIN MAX
A–B
0 EJECTDISC LOADING MECHANISM
POWER
MINIDISC RECORDER
– OFF - ON
DIGITAL
NR
TIMER
REC OFF PLAY
vC¿Û.?˘
1
0
2
3
4
5
6
7
8
9
10

Pioneer MJ-D508 Specifications

General

Brand	Pioneer
Model	MJ-D508
Category	Minidisc Recorder
Language	English

Summary

Safety Information

WARNING and Notices

Important safety warnings regarding hazardous materials and electrical precautions.

Safety Precautions

Essential safety checks and procedures for safe operation and servicing.

Product Safety Notice

Exploded Views and Parts Lists

MD Mechanism Assembly Parts List

Block and Schematic Diagrams

Block Diagram Overview

High-level functional overview of the unit's main sections.

Core Unit Schematics

Detailed circuit diagrams for main and core SW units.

Main Unit and Power Supply Schematics

Circuit diagrams for the main unit and its power supply.

Display, Headphone, and Volume Unit Schematics

Circuit diagrams for the display, headphone, and volume units.

Waveform Analysis

Waveform Examples

Oscilloscope waveform examples for troubleshooting and adjustment.

PCB Connection Diagrams

Core Main Unit PCB Layout

Main and Power Supply Unit PCB Layouts

PCB Parts List

Whole PCB Assemblies List

Adjustment Procedures

Adjustment Point Guide

Overview of necessary adjustment points and required test discs.

Test Mode 1: Main Unit Operation Check

Procedure for checking main unit operation via test mode.

Test Mode 2: MD Mechanism Adjustment

Detailed steps for adjusting and checking the MD mechanism.

Laser Power Check

Procedure for measuring and verifying laser output power.

Grating Adjustment

Preliminary Adjustment Mode

Normal Adjustment Mode

Defocus Adjustment Procedure

Jitter/C1 Error Check

Procedures for checking jitter and C1 error during playback and recording.

General Information and Troubleshooting

Diagnosis Flowchart

Error Display Details

Disassembly Instructions

Servo Mechanism Assy Removal

MD Pick-up Removal and Installation