Audio research sp 3 owners manual

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audio research sp 3 owners manual

Extracted text from audio research sp 3 owners manual (Ocr-read)


Page 1

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INSTRUCT10N MANUAL
MODEL SP-3A-1

PREAMPLIFIER
(INCLUDES ALL VERSIONS)

audio research

-
HIGH DEFINITIDN®

3900 ANNAPOLIS LANE NORTH / PLYMOUTH, MINNESOTA 55447-5447
PHONE: 761577-9700 FAX 763-577 0323

Page 2

TABLE OF CONTENTS
Section

Introduction

Line Voltage Conversion

Equipment Packaging

Installation and Mounting

Rear Panel Functions

System Connection

Front Panel Functions

General Operation

System Diagnostics

Factory Service

Routine Maintenance

Technical Specifications

Circuit Description

Parts List

Equipment Servicing . .
Nominal Power Supply Filter Ripple Waveforms
Voltage/Resistance Table

Troubleshooting Table

LIST OF ILLUSTRATIONS
Title

Equipment Packaging

Equipment Dimensions

Rear Panel Layout

Single Amplifier Connection (for clual output tape recorders)
Single Amplifier Connection (for single output tape recorders)
Bi-Amplified Connection

TriAAmpIified Connection

Front Panel Layout

Tone Control Response

Contour Control Response

Frequency Response

Phase Response

Simplified Schematic Diagram

Schematic Diagram

Chassis & Tube Layout

PCBA85C Component Layout

PCB-86 Layout (Resistors)

PCB-86 Layout (Capacitors)

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