Audio Research REFERENCE PHONO 10 Manual de usuario

User Guide

H I G H D E F I N I T I O N ®

REFERENCE 10

Stereo Preamplifier

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2Contents

Preface 3

Illustrations

Audio Chassis 4

Power Supply Chassis 5

Warnings 6

Installation

Installation of Vacuum Tubes 7

In Your System 8

Connections 9

Operation

Power-Up Procedure 10

Front Panel Controls 11

Remote Control Only Controls 12

Interactive Touch Screen Operation 13 - 16

Troubleshooting 16

Maintenance

Servicing 17

Cleaning 17

Disposal and Recycling Guidelines 17

Limited Warranty 18

Specications 19

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Thank you for selecting the Reference 10 as part of your

music listening system. The engineers and designers at

Audio Research have spent countless hours of listening

and testing to create a preamplier of the highest caliber

for music reproduction. The Reference 10 has been

designed to provide you many years of playback.

Please take a few minutes to read through this guide

to help you better understand and optimize your new

preamplier. If you have any questions regarding the

operational functions, contact your dealer or distributor

for assistance.

Sit back and enjoy your new preamplier and the

enhancements it will bring to your system. The

Reference 10 will bring new life to your entire music

collection.

Happy listening!

Preface

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Audio Chassis

RIGHT INPUTS

LEFT INPUTS

PROC

RECORD OUT

MAIN OUTPUTS

FROM POWER SUPPLY

CABLE "A"

FROM POWER SUPPLY

CABLE "B"

PLYMOUTH, MINNESOTA

MADE IN U.S.A.

REFERENCE 10

STEREO PREAMPLIFIER

RIGHT OUTPUTS

LEFT OUTPUTS

SERIAL

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION

RS232

TO PREVENT FIRE AND SHOCK HAZARD, DO NOT

EXPOSE THIS DEVICE TO RAIN OR MOISTURE.

UNIT MUST BE OPERATED IN A HORIZONTAL POSITION.

-DO NOT OPERATE WITH COVERS REMOVED-

UNIT CONTAINS VOLTAGES

WHICH MAY BE HAZARDOUS

Illustrations

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PLYMOUTH, MINNESOTA

MADE IN U.S.A.

REFERENCE 10

STEREO PREAMPLIFIER

WARNING

TO PREVENT FIRE AND SHOCK HAZARD, DO NOT

EXPOSE THIS DEVICE TO RAIN OR MOISTURE.

UNIT MUST BE OPERATED IN A HORIZONTAL POSITION.

-DO NOT OPERATE WITH COVERS REMOVED-

UNIT CONTAINS VOLTAGES WHICH MAY BE HAZARDOUS.

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION

VOLTS

SERIAL

TO AUDIO CHASSIS

CABLE "A"

TO AUDIO CHASSIS

CABLE "B"

235W MAX 50/60 HZ

REMOTE TRIGGER

+12V

6A FUSE

SLO-BLO

T4A (230V)

CAUTION

FOR CONTINUED PROTECTION AGAINST

FIRE HAZARD REPLACE FUSE ONLY

WITH SAME TYPE AND RATING

Power Supply Chassis

Illustrations

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6Warnings

To prevent re, or shock hazard, do not expose your Reference 10 to rain

or moisture.

This unit contains voltages which can cause serious injury or death. Do

not operate with cover removed. Refer servicing to your authorized Audio

Research dealer or other qualied personnel.

The detachable power cord on your Reference 10 is equipped with a heavy

gauge, 3-conductor cable and a standard three-prong grounding plug. For

absolute protection, do not defeat the ground power plug. This provides

power line grounding of the Reference 10 chassis to provide absolute

protection from electrical shock.

For continued protection against re hazard, replace the fuse only with the

same type and rating as specied at the fuse holder.

The appliance coupler at the rear of this unit must be accessible for

emergency power disconnect.

A note about packaging...

Save all packaging in a dry place away from re hazard. Your Reference

10 preamplier is a precision electronic instrument and should be properly

cartoned any time shipment is made. You may not have occasion to return

your unit to the factory for service, but if that should prove necessary, or

other occasion requiring shipment occurs, the original packaging will protect

your Reference 10 from unnecessary damage or delay.

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Installation

Installation of Vacuum Tubes

Before operating the Reference 10...

This unit has been shipped with the vacuum tubes installed in protective

foam in a separate box packed inside the shipping carton. Remove the

tubes carefully from the protective foam. Using a phillips-head screwdriver

to loosen the fastening screws, remove the top cover and set aside.

After removing the top cover and the vacuum tubes packed in protective

foam, see the accompanying illustrated sheet (g. 1 + 2) for instructions

on installing the tubes for your Reference 10 in their proper locations in the

power supply and audio chassis. Note that the numbers written on each

tube correspond to a ‘V’ number printed on the circuit board next to each

tube socket. Insert each tube rmly, carefully aligning the tube pins with the

corresponding socket holes.

V1V5

V7 V3

V2V6

V8 V4

TOP VIEW

AUDIO UNIT

g. 1

TOP VIEW

POWER SUPPLY

UNIT V10

V11

V12

g. 2

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8Installation

In your System

While the Reference 10 does not dissipate an unusual amount of heat,

it is important that it be provided with reasonable airow to assure long,

trouble-free operation. In addition, the following installation guidelines will

help insure maximum sonic performance as well as reliable service:

Operate unit in upright and horizontal position, prefer-ably on solid, non-

metal shelving.

Do not stack the preamp on top of a power amplier: not only could this

cause overheating, but hum may be introduced into the preamp from the

proximity of the amplier’s power transformer.

Do not stack components or other objects directly on top of the Reference

10.

Do not place or operate your preamp on a soft or irregular surface such as

a rug. This will prevent proper ventilation.

Do not operate your preamp without the top and bottom covers installed.

These are required both for safety as well as shielding from interference

(except in service operations by qualied personnel).

Ensure a minimum of 8-10” clearance above the unit when placed on

shelving.

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Connections

Analog Connections

Input Connectors: The Reference 10 provides seven pairs of BAL/SE

input connectors: 1, 2, 3, 4, 5, 6, and Processor. The BALANCED/SINGLE

ENDED selector (touch screen) or BAL/SE (remote) should be selected to

match the type of connection used (BAL or SE) on each input.

Connect either the BAL or SE connectors for each input. Never connect

the BAL and SE connectors simultaneously for each input.

Output Connectors: Two pairs of BAL/SE main outputs are provided.

Record Output: The BAL/SE tape outputs should be connected to your

recorder’s ‘Record’ or ‘Line’ inputs. These outputs provide a xed-level

two-channel signal (L, R) to your recorder from whichever input is selected.

The non-variable output level will be the same as the output of the selected

source.

It is possible to dub or copy from one recorder to another by connecting the

output of the source recorder to an unused set of stereo inputs (e.g. 5 or

6). The signal will then be routed to the Record Out connectors when that

input source is selected.

RS-232 Connection: The RS-232 connection allows for remote control via

systems such as Creston or other automation systems.

12V In/Out Start Jacks: The +12V DC input/output jacks provide the

ability to remotely turn on and off other linked components such as power

ampliers having similar capabilities.

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10 Operation

Power-Up Procedure

Secure all rear-panel connections between Reference 10, power amplier(s)

and input sources.

Plug three-prong power cord from rear of chassis into grounded A.C. wall

outlet. The Power switch defaults to ’off’ when the unit is plugged into a

power receptacle.

Press power switch (either remote or front panel). The screen will initially

display ‘Now Loading’ for a few seconds, after which it will display the Audio

Research logo followed by ‘Reference 10’ (g. 3 + 4). The main display

screen will then appear on the screen, and ‘MUTE’ will be ashing. Once

‘MUTE’ becomes solid, depress the front panel MUTE button (right button)

or touch the word ‘MUTE’ on the screen to initiate normal operation.

Select input source, then BAL or SE as necessary.

Shut-Down

Activate ‘Mute’ function.

Set Volume level to 0.

Turn off power amplier(s).

Press Power switch to ‘off’.

Turn off input sources.

g. 3 g. 4

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