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Dual 1246 Service Manual

Dual 1246
16 pages
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Dual 1246 Specifications

General IconGeneral
BrandDual
Model1246
CategoryTurntable
LanguageEnglish

Summary

Technical Specifications

Motor and Drive System

Speed Changeover

Adjusting platter speeds between 33 1/3 and 45 RPM using the belt.

Platter and Flat Belt Procedures

Instructions for removing, replacing, and fitting the platter and flat belt.

Drive Pulley Replacement

Step-by-step guide for changing the motor's drive pulley.

Tonearm Assembly and Adjustment

Tonearm Removal Procedures

Details on removing the tonearm from the bearing frame and complete assembly.

Spring Housing and Bearing Adjustment

Steps for replacing spring housing and adjusting tonearm bearing friction.

Antiskating and Tonearm Lift

Antiskating Device Adjustment

Description of the antiskating force adjustment mechanism.

Tonearm Lift Bolt Adjustment

Adjusts the vertical movement of the tonearm for automatic play.

Tonearm Operation Modes

Tonearm Control

Details automatic tonearm movement initiated by control cams.

Start Sequence

Explains the sequence for initiating playback.

Manual Start and Continuous Play

Describes manual operation and continuous playback modes.

Automatic Functions and Controls

Muting Switch Operation

Explains the muting switch function and its adjustment.

Record Drop and Stopping

Describes how to initiate a record drop and the stopping mechanism.

Shut-off and Change Cycle

Details the automatic shut-off procedure at the end of a record.

Mechanism Adjustments

Shut-off Mechanism

Explains the determination of shut-off and change functions.

Tonearm Set-down Point Adjustment

Adjusts the tonearm's landing position for 30 cm and 17 cm records.

Release Rocker

Explains adjustment of the release rocker for the changer spindle.

Component Functions and Troubleshooting

Pawl Play Adjustment

Adjusts the play of the pawl using an eccentric screw.

Tonearm Vertical Lift

Adjusts the tonearm's vertical height for automatic operation.

Safety Regulations

Replacement Parts

Lubrication Guide

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