Technics SL-PD687

ORDER NO. AD9801005S0
A6
Service
Manual
Compact Disc Changer
oL-PD349
oL-PD665
SL-PD687
oL-PD88/
Colour (K) ... Black Type
Compact Disc Changer
Areas
Peete: U.S.A
PP ..............U.S.A. and Canada.
B ehettetiotn ats Europe.
EB siecnaleds Great Britain.
a Purpose = C pene eee ee Germany and Italy.
3 er é © @ pee ner Asia, Latin America,
Please be informed of that the “Traverse Deck (Ass’y)” and “CD Servo Middle Near East
P.C.B.” of the CD unit have been changed on production. and Africa.
COIN yk tron Oceania.
i
Applicable
Serial
Number
Suffix
Model No. SL-PD349
Serial No. Suffix {rom “ K” onward
CD servo P.C.B.
“CU7...” is shown in this place
of CD servo P.C.B.
li Interchangeability
The “NEW” Traverse Deck (Ass’y) (RAE0152Z) and the “FORMER” Traverse Deck (Ass’y) are interchangeable.
Even if the CD unit has the former servo P.C.B., only the traverse deck is changeable to the new one.
A WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public. It
does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service
or
repair
the
product
or
products
dealt
with
in
this
service
information
by
anyone
else
could
result
in
serious
injury
or
death.
Technics
© 1998 Matsushita Electric Industrial Co., Ltd.
All rights reserved. Unauthorized copying and
distribution ts a violation of law.

Technics SL-PD687 Specifications

General

Brand	Technics
Model	SL-PD687
Category	CD Player
Language	English

Summary

Product Purpose and Identification

Applicable Serial Number Suffixes

Lists serial number suffixes applicable to different models.

CD Unit Identification Method

Provides visual cues to differentiate CD units.

Part Interchangeability

Details compatibility between new and former traverse decks.

Schematic Diagram: New CD Unit

CD Servo Circuit Diagram

Detailed circuit diagram for the CD servo system.

CD Unit Parts Location

New CD Unit Replacement Parts

Identifying Units with New CD Systems

Servo P.C.B. Layout

Diagram showing component placement on the Servo P.C.B.

Component Lists: Resistors & Capacitors

Laser Diode Safety Precautions

Safety precautions for handling the laser diode.

Accessories and Connections

Unit Connection Guide

Instructions on connecting the changer to audio systems.

Foot Replacement Procedure

Procedure for replacing the unit's feet.

AC Mains Lead Safety and Unit Handling

Front Panel Controls Description

Description of the unit's front panel buttons and indicators.

Precautions for Moving the Unit

Guidelines for safely moving the device.

Basic Operations Guide

Sequential Playback

How to play all discs in order.

Direct Track Access

Method for selecting specific tracks.

Temporary Stop and Resume

How to pause and resume playback.

Stop Playback

How to stop playback and view disc totals.

Disc Exchange During Play

Procedure for changing discs while playing.

Self-Diagnostic Functions and Traverse Deck Handling

Traverse Deck Static Precautions

Precautions for handling the traverse deck due to static electricity.

Disassembly Instructions

Automatic Adjustment Diagnostics

Digital Servo System Overview

Overview of the digital servo system and adjustment flow.

Troubleshooting Guide

Measurements and Adjustments Procedures

Post-Adjustment Playback Checks

Procedures to check playback and search operations post-adjustment.

Mechanical Adjustment Procedure

Steps for performing mechanical adjustments, including RF signal measurement.

Terminal Guide for ICs and Transistors

System Block Diagram

Printed Circuit Board Layouts

Wiring Connection Diagram

Comprehensive Replacement Parts List

Cabinet Parts Location Guide

Resistors and Capacitors Component List