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Technics SL-PS50 Service Manual

Technics SL-PS50
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Technics SL-PS50 Specifications

General IconGeneral
TypeCD Player
Disc formatCD
Channels2
Frequency Response2 Hz to 20 kHz
Signal-to-Noise Ratio106 dB
Dynamic range96 dB
Total harmonic distortion0.003%
Digital converter1-bit DAC
Output Level2.0V
Digital outputscoaxial
Dimensions430 x 310 x 100 mm

Summary

SPECIFICATIONS

Audio Specifications

Detailed audio output and response parameters.

Pickup Specifications

Laser pickup wavelength and performance specifications.

General Specifications

Power supply, dimensions, and weight details.

PLACEMENT AND ACCESSORIES

Unit Placement Guidelines

Instructions for optimal unit placement and environmental considerations.

Included Accessories

List of items provided with the CD player.

LASER DIODE PRECAUTIONS

Laser Safety Information

Critical safety information regarding laser diode exposure and handling.

CONTROLS AND OPERATION

Front Panel Controls

Identification and function of front panel buttons and indicators.

Remote Control Functions

Explanation of buttons and indicators on the remote transmitter.

CONNECTIONS

System Connectivity Diagram

Diagram and instructions for connecting audio output and power.

HANDLING AND LUBRICATION

Optical Pickup Handling

Precautions against static discharge and physical shock to the pickup.

Traverse Oil Application

Step-by-step guide for applying lubricant to the traverse mechanism.

DISASSEMBLY INSTRUCTIONS

Exterior Component Removal

Procedures for removing cabinet, front panel, and related parts.

Circuit Board Removal

Detailed steps for removing internal circuit boards (FL, Timer, Headphones, Operation).

Internal Mechanism Disassembly

Steps for removing disc holder, loading base, and servo P.C.B.

Pickup and Motor Removal

Procedures for removing the optical pickup and spindle motor.

MEASUREMENTS AND ADJUSTMENTS

Preparation and Adjustment Points

Steps to prepare the unit for calibration and identify adjustment points.

Turntable and Mechanical Adjustments

Setting turntable height and aligning RF signal for optimal playback.

Servo System Calibration

Adjusting focus, tracking gain, and PD balance for servo performance.

Offset and Balance Adjustments

Fine-tuning focus, tracking offset, and balance for servo accuracy.

Post-Adjustment Playback Check

Verifying playback functions after calibration procedures.

TERMINAL FUNCTIONS

Servo ICs Terminal Functions

Pin definitions for servo amplifier and processor ICs.

System Control and DSP ICs

Pin details for system control, DSP, and drive ICs.

Filter and Converter ICs

Pin functions for digital filter and D/A converter ICs.

CIRCUIT DIAGRAMS

System Block Diagram

Overall functional block representation of the CD player.

Schematic Diagrams

Detailed electrical schematics for various circuits.

Printed Circuit Board Layouts

Visual guides showing component placement on circuit boards.

Wiring Connection Diagram

Diagram illustrating internal cable and connector routing.

Internal FL Connections

Details on connecting the FL display elements and pinout.

TROUBLESHOOTING

Operation Sequence Check

Flowchart for verifying normal playback operation sequences.

Fault Diagnosis Guide

Diagnostic charts for identifying operational failures.

PARTS AND PACKING

Replacement Parts List

List of part numbers for replacement components.

Exploded Views

Diagrams showing component assemblies for repair.

Resistors and Capacitors List

Table listing values and reference numbers for passive components.

Packing Instructions

Guidelines for packaging the unit for shipment or storage.

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