Oracle Audio Technologies DELPHI MARK V User Manual

ORACLE AUDIO

DELPHI MARK V

turntable

OWNER’S MANUAL

by Oracle Audio Technologies inc.

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T

ABLE OF CONTENTS

Foreword .................................................................................................... 1

How to ...

... pack and unpack your Delphi ................................................................. 2

... assemble the sub chassis ...................................................................... 3

... adjust the plinth assembly ...................................................................... 3

... install the tone arm and phono cartridge ................................................ 3 - 4

... precisely align the phono cartridge ......................................................... 4

... calibrate the suspension ......................................................................... 5 - 6 - 7

... dress the phono lead .............................................................................. 8

... install the drive belt ................................................................................. 8

... remove the platter with the drive belt installed ........................................ 9

... connect the power supply ....................................................................... 9

... adjust the 33 / 45 speed ......................................................................... 9

... attach the ground lead ............................................................................ 10

... install and calibrate the hinges ............................................................... 10

... operate the record clamp ........................................................................ 10

... level your Delphi ...................................................................................... 10

What to do ...

... if .............................................................................................................. 11

... for maintenance ...................................................................................... 12

oreword

F

are self explanatory, we strongly suggest you read this booklet to better understand the
importance of the different key adjustments.
Your Delphi is a precision instrument and its performance will be effected by the different
adjustments. It is important to set up your Delphi with the utmost care so it can effectively
convert record groove modulations into outstanding musical performance and enjoyment !

Total accuracy of your source system can only be achieved through minute details of
turntable suspension calibration, tone arm installation and cartridge alignment.

This is your Delphi MKV owner’s manual. The following pages will describe as
succinctly as possible the assembly of your new Delphi. Although some operations

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ow to ...

H

... pack and unpack your Delphi

- Remove the inner box by lifting it straight up and out. Open the flaps on both ends
and slide out the styrofoam packaging.

- Lift the styrofoam cover straight up so as to protect the corner reinforcement.
Note 1: All the accessories are positionned strategically in the packaging to prevent

them from coming loose and possibly damaging the turntable during shipping.

IMPORTANT ! When shipping the turntable position each item in its allocated
section.

- The following items are located in the upper section of packaging.

- Dust cover ( optional item ordered separately )

- Calibrator disc

- Main bearing lubricating oil

- D.C. Power supply

- Accessories bag

- Drive belt

- Linth free cloth

- Suspension adjustment gauge

- Tools pouch
( screw driver, allen keys, 9/64"-3/32"-5/64" )

Note 2: Lift the acrylic base straight up so as not to damage the platter’s spindle
protruding through.

- The following items are located in the bottom section of packaging.

- Plinth assembly

- Platter

- Record clamp

- Brillance cleaner

Note 3: Your ORACLE’s packaging has been designed to protect it from the abusive
handling normally encountered during shipping. Such packing materials are
expensive and we recommend you save it for future shipping.

... assemble the sub chassis

- Hinges ( supplied with the dust cover option )

- Strain relief clip

- Main bearing assembly

- One extra suspension spring

- Three suspension caps

It is mandatory

to use the original packaging for any return to the factory.

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- Locate the bearing assembly in the lower section of the packaging. Remove the 3
mounting screws.

- Locate the tool kit in the lower section and select the appropriate allen key...
9/64th

- Lift the subchassis straight up and mount the bearing assembly from underneath
(ground lug side). The bearing assembly can only be mounted in one position

Note: Important, the main bearing mounting flange is marked with a red dot. When

installed this red dot must be on the axis of the motor pulley and the platter
spindle. Any other positionning will impair the operation of your Delphi.

- Set the subchassis aside.

... adjust the plinth assembly

- Remove the styrofoam support blocks from around the suspension posts.

- Remove the suspension modules ( ie. the suspension housing, the spring and all
related parts ) Remember that each module has or could have a different color
coded spring. The modules have to go back on the same stem they came from.

- Remove the protective film from around the acrylic base.

- Level the plinth by turning the adjustable feet below.
Note: If you do not have a small carpenter's level to do this job, use the styrofoam

blocks as they were originally installed around the three suspension posts.
Seat the subchassis evenly on the 3 blocks and use the spirit level on the
subchassis to level the plinth.The suspension modules are not required for
this operation.

... install the tone arm and phono cartridge
Note 1: The tonearm installation and calibration will be easier and safer with the

sub-chassis resting on the foam shipping blocks as described earlier.
Note 2: The drive belt should not be used for this operation
Note 3: Do not pour the oil in the bearing well for this operation.
Note 4: Handle the platter installation carefully to prevent any damages to the
bearing assembly.

- Install the platter without the drive belt.

- Place the tone arm mounting board loosely in the sub chassis mounting ring and
determine the correct way to mount the arm to the arm board.

- Mount the tone arm to the pre-cut tone arm board.

- Install the tone arm following the manufacturer’s recommendations.

- Properly secure the tone arm mounting hardware.

... install the tone arm and phono cartridge ...

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