Technics SL-PS670A Service Manual

Compact Disc Player
COMPACT [DIGIV/IL|
OSG nce
multi-stage nolse shaping
RAE1100Z MECHANISM SERIES
Specifications
@ Audio
No. of channels
Frequency response
2 (left and right, stereo)
2 — 20,000 Hz, + 0.5 dB
Output voltage 2 V (at 0 dB)
Dynamic range 98 dB
S/N 107 dB
Harmonic distortion
Total harmonic distortion
Wow and flutter Below measurable limit
DA converter MASH (1 bit)
Output impedance 600 Q
Load impedance More than 10 kQ
Headphone output level 15 mW max. 32 Q (adjustable)
0.002% (1 kHz, 0 dB)
0.0027% (1 kHz, 0 dB)
@ Pickup
Wavelength 780 nm
Laser Power No hazardous radiation is emitted
(with safety protection)
ORDER NO. MB9410050C2
Service Manual
Compact Disc Player
SL-PS670A
Colour
(K) : Black
Areas
Suffix for ae Col
Model No. - ic
(EG) Germany and Italy
m@ General
Power consumption 15 W
Power supply AC 50/60 Hz, 230 — 240 V
Dimensions (W x Hx D) 430 x 114x290 mm
Weight 4.0 kg
Note:
Specifications are subject to change without notice.
Weight and dimensions are approximate.
For United Kingdom only:
This apparatus was produced to BS 800.
*
@ MASH is a trademark of NTT.
ZAAWARNING
This service information is designed for experienced repair technicians only and is 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
© 1994 Matsushita Electric Industrial Co., Ltd.
All rights reserved. Unauthorized copying
and distribution is a violation of law.

Technics SL-PS670A Specifications

General

Type	CD Player
Disc format	CD
Channels	2
Frequency Response	2 Hz - 20 kHz
Signal-to-Noise Ratio	110 dB
Output	2 V
Digital outputs	Coaxial
Power Consumption	15 W

Summary

Specifications

Audio Specifications

Details about audio channels, frequency response, output voltage, dynamic range, S/N, distortion, wow/flutter, DA converter, impedance, and headphone output.

Pickup Specifications

Details about the pickup laser wavelength and laser power.

Handling Precautions for Traverse Deck

Handling of Traverse Deck (Optical Pickup)

Instructions for handling the optical pickup, including anti-static precautions and avoiding excessive stress on the FPC board.

Grounding for Electrostatic Prevention

Guidelines for grounding human body and work tables to prevent electrostatic discharge during servicing.

Precaution of Laser Diode

Laser Diode Safety Precautions

Safety warnings and precautions for working with the laser diode, including avoiding disassembly and direct eye exposure.

Connections

Unit Connection Guide

Caution for AC Mains Lead (For United Kingdom)

UK AC Mains Lead Safety Information

Safety instructions for the AC mains lead in the UK, including fuse replacement and wiring precautions.

Basic Operating Procedure

Disc Playback Operation Guide

Step-by-step guide on how to play a disc, including inserting, playing, stopping, and pausing.

Operation Check and Main Component Replacement Procedures

Checking Procedures for Each P.C.B.

Main Component Replacement Procedures

Traverse Unit Assembly Replacement

Detailed steps for removing and replacing the traverse unit assembly, including cable management.

Loading Belt and Motor Replacement

Block Diagram

Schematic Diagrams

Optical Pickup and Servo Circuit Schematics

Troubleshooting Guide

Automatic Adjustment and Self-Check Function

Procedure for Displaying Adjustment Codes

Troubleshooting Using Adjustment Codes