SME 20/3 Instructions Manual
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SME 20/3 Instructions Manual

Precision turntable
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PRECISION TURNTABLE
Instructions

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Summary of Contents for SME 20/3

  • Page 1 PRECISION TURNTABLE Instructions...
  • Page 2 Warning! Important Safety Instructions CAUTION: RISK OF ELECTRIC SHOCK DO NOT REMOVE POWER SUPPLY UNIT COVER. CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE POWER SUPPLY UNIT COVER. THERE ARE NO USER SERVICEABLE PARTS INSIDE. REFER ALL SERVICING TO QUALIFIED PERSONNEL. Please read this manual carefully and keep it in a safe place for future reference.
  • Page 3 MODEL 20/3 PRECISION TURNTABLE Instructions This is no ordinary turntable. These instructions have been compiled covering unpacking, adjustment and installation procedures. Please read carefully as you proceed.

  • Page 4: Introduction

    1. INTRODUCTION The SME Model 20/3 Precision Turntable is built to the same engineering standards and incorporates many of the design features originated for the Model 30. This splendid turntable offers total reliability and freedom from critical adjustments whilst massive construction and vibration free moving parts ensure wide-band sound of exceptional detail, resolution and dynamic range.

  • Page 5: Table Of Contents

    2. CONTENTS Page Introduction Dimensions and specification Packing list Parts identification Unpacking 10/11 Setting up Operation - Turntable speed adjustment Operation 12/13 Maintenance Transit precautions Guarantee Appendix...
  • Page 6 3. DIMENSIONS Width 440.0mm (17.32”) Depth 350.0mm (13.78”) Height 173.5mm (6.83”) Platter Diameter 325.0mm (12.80”) Spindle to Arm 215.4mm (8.48”) Net Weight 31.0Kg Shipping weight 45.0Kg 4. SPECIFICATION The turntable is driven by a 3-phase, 6 pulse, inductance motor, with 8 pole Neodymium magnets and 3 integrated Hall position sensors.

  • Page 7: Packing List

    PACKING LIST Part No. Model 20/3 base and sub-chassis assembly 1119-20/3 Suspension Bands (spares) 1020 Syringe of Spindle Oil 1058/20 4mm A/F Hexagon Wrench 1083 Stroboscopic Disc 1087 Control Unit 1081 Power Cord 1098-9 Drive Belt 1100 Syringe of Lubricating Oil...

  • Page 8: Parts Identification

    7. PARTS IDENTIFICATION Suspension Transit Screws Platter Motor Pulley Motor Arm Mounting Retaining Plate Band Sub-Chassis Pulley Transit Screws Insert 3mm Ball-Ended Wrench here Upper Gallery M3 x 12 Socket Cap Cover Screw Turntable Spindle Record Spindle Washer Driven Pulley Drive Belt Pulley Flange Suspension...

  • Page 9: Unpacking

    8. UNPACKING 1. Unpack and check all items against the packing list on Page 7. Any missing parts should be reported to your dealer at once. 2. The turntable should be placed on a substantial table or steel equipment stand, this should be in its final position for setting up, as movement after this procedure is best avoided.

  • Page 10: Setting Up

    4. The base should now be levelled by rotating the supporting feet. The feet will turn more readily if the corresponding corner of the base is lifted slightly at the same time. 5. The Model 20/3 is intended to receive SME precision pick-up arms such as the Series V, Series IV or Series 300 Model 309.

  • Page 11: Operation - Turntable Speed Adjustment

    10. OPERATION - Turntable speed adjustment The Model 20/3 precision turntable is partly run-in before leaving the factory but will further benefit from the first few weeks of use.

  • Page 12: Maintenance

    3. The Model 20/3 is not equipped with a lid as this would increase the likelihood of acoustic feedback. A soft cover is provided to protect the turntable from dust when not in use. The back should be fitted first and the cover then brought forward so that the front can be guided safely past the cartridge and stylus.

  • Page 13: Transit Precautions

    TRANSIT PRECAUTIONS The Model 20/3 can be safely transported, SUBJECT ABSOLUTELY TO THE FOLLOWING PRECAUTIONS: Short journeys by car: remove the platter, disengage the drive belt from the motor pulley, and replace the two packing strips beneath the motor and secure with the motor transit screw.

  • Page 14: Guarantee

    The nominal period of the guarantee is twelve months but is liberally interpreted at our discretion subject to the following conditions being observed: 1. Any matter arising must in the first instance be raised with SME Limited at the address appearing below.

  • Page 15: Appendix

    15. APPENDIX We hope these instructions have made the installation of your Model 20/3 precision turntable straightforward. Care for it as befits its fine construction. Do not invert it. Do not apply oil or other lubricant except as directed. Do not attempt to take it to pieces or interfere with any of the screws except as directed in the instructions.

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