Sony PS-LX430 Service Manual

PS-LX430:
US Model
PS-LX430C:
US Model
Canadian Model
PS-LX431:
AEP Model
UK Model
E Model
PS-LX431N:
US Model
PS-LX433:
US Model
SPECIFICATIONS
Turntable
Platter 30.0 cm(12 in.), aluminum-alloy diecast
Motor DC servo motor
Drive system Belt drive
Controlsystem DCservocontrol system
Speed 33!/3 rom, 45 rom
Start-up time Comes to nominal speed within 4/2 rotation (33/3
rpm)
Wow and flutter 0.045% (WRMS)
Signal-to-noise ratio
70 dB (DIN-B)
Automatic system
Lead-in, return, reject, repeat, record size
selection
Suspension system
High elasticity gel insulator
Toneam
PS-LX430/430C/433:
Type Statically balanced
Pivot-to-stylus length
216.5 mm (81/2 in.)
Usable cartridge Plug-in type, 6g
Sony VL-45G
Trackingerror +3, —-1
PS-LX431/431N:
Type Dynamically balanced
Pivot-to-stylus length 216.5 mm (81/, in.)
Overhang 16.5 mm (22/39 in.)
Tracking error +3, —-1
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK
A ON THE SCHEMATIC DIAGRAMS AND IN THE
PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
Cartridge
PS-LX430C: VL-45G
Type Moving magnet type
Frequency response
20 Hz to 20 kHz
Channel separation
20dB at 1 KHz
Output voltage 3.5mVat1kHz,5cm/sec.
Loadimpedance 50to 100 kilohms
Tracking force 1.259
Stylus Sony ND-145G (conical 0.6 mil diamond)
Weight 6g
PS-LX430/LX433 Not supplied
PS-LX431: VL-42G
Type Moving magnet type
Frequency response 20 Hz tO 20 kHz
Channel separation 16dB at 1 kHz
Output voltage 2.5 mV at 1 kHz, 5 cm/sec.
Loadimpedance = 50to0 100 kilohms
Tracking force 2g
Stylus Sony ND-142G
(conical 0.6 mil diamond)
Weight 8g
~ Continued on page 2 —
ATTENTION AU COMPOSANT AYANT RAPPORT
A LA SECURITE!
LES COMPOSANTS IDENTIFIES PAR UNE TRAME ET
UNE MARQUE A SUR LES DIAGRAMMES SCHE-
MATIQUES ET LA LISTE DES PIECES SONT CRITIQUES
POUR LA SECURITE DE FONCTIONNEMENT. NE REM-
PLACER CES COMPOSANTS QUE PAR DES PIECES
SONY DONT LES NUMEROS SONT DONNES DANS CE
MANUEL OU DANS LES SUPPLEMENTS PUBLIES PAR
SONY.
STEREO TURNTABLE SYSTEM
SONY.

Sony PS-LX430 Specifications

General

Brand	Sony
Model	PS-LX430
Category	Turntable
Language	English

Summary

Specifications Overview

Safety Component Warning

Safety Procedures and Cautions

Safety Check-out and Leakage Test

Outlines the safety check procedure, focusing on AC leakage testing methods and limits.

Disassembly Guide

Turntable Motor and Board Removal

Provides steps for removing the turntable motor and associated switch boards.

System Control Board Removal

Details the procedures for removing the system control boards (A and B).

Installation Procedures

Push Rod and Lifter Lever Installation

Step-by-step instructions for installing the push rod and lifter lever assembly, including lubrication.

Tonearm Unit and Index Lever Assembly

Guides for assembling the tonearm unit, chassis block, and index levers.

Arm Lever, IFC Knob, and Drive Gear Installation

Tonearm Servicing (PS-LX431)

Tonearm Servicing (PS-LX430, 433)

Lead Wire and Arm Pipe Procedures

Mechanical Adjustments

Tone Arm Balance and Stylus Force

Covers longitudinal sensitivity, horizontal balance, and stylus force adjustments for the tonearm.

Brake Lever Position Adjustment

Details on how to adjust the brake lever position for proper operation.

Stylus Height Adjustment

Procedures for adjusting stylus height in both automatic and manual modes.

Operational Adjustments

Stylus Drop-point and Speed Calibration

Guide for setting the stylus drop-point and calibrating playback speeds (33/45 RPM).

Exploded Views and Parts Identification

Main Unit Exploded View and Parts

Electrical Parts Listing

Capacitors, Semiconductors, and ICs

Resistors, Switches, and Accessories

PC Boards and Transformers