Quad 520 F Owners Manual

Page 1

520f
TWIN CHANNEL
PROFESSIONAL
POWER AMPLIFIER '

USER MANUAL

QUAD

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CONTENTS

1.0 DESCRIPTION

2.0 INSTALLATION

3.0 OPERATION

4.0 SERVICE AND MAINTENANCE

5.0 TECHNICAL

OI52BEC

Introduction
Current Dumping
Options
Variants

Unpacking
Contents

Mains Voltage Selec Ion
Mains Input Connection
Earthing Requirements

Connectors ..
IEC Input Conven Ion
NAB Input Convention
Neutrik Speakon Connectors
IEC Output Convention
NAB Output Convention
Output Connection Requirements
Installing Balanced Input Modules
lnrush Limiting Module ...................................

Protection
Fuses ..
Thermal Considerations

Warranty
Preventative Maintenance
Repair

Packing
Spares

Circuit Description
Parts List ..........
Specification

Circuit Diagram

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Mains Input Connection

Earthing Requirements

Connectors

IEC Input Convention

NAB Input Convention

The mains input connection is via a standard CEE22 plug and socket. The
amplifier chassis must be connected to ground via the mains supply lead.

A simple retaining clip ensures that the mains connector can not be removed
accidentally.

The mains lead supplied should be wired to the mains power supply plug
with due regard to the following colour convention:

Brown wire Live connection
Blue wire Neutral connection
Green/Yellow wire Safety earth

The Brown wire must be connected to the plug terminal marked L or
coloured Red. The Blue wire must be connected to the terminal marked N
_or coloured Black. The Green/Yellow wire must be connected to the terminal
marked E or coloured Green or Green/Yellow.

Note: The amplifier must be protected by a 10A fuse when a 13A plug is
used, or if another type of plug is used, by a 10A fuse either in the plug or
adapter, or at the distribution board. If in doubt consult a qualified electrician.

It is usually a safety requirement that the mains power lead earth connection
is properly connected to the amplifier chassis.

There exists a variety of input and output connector conventions.

The Quad 520f is supplied with the wiring convention for the input XLFl style
connector marked on the rear panel. Certain markets have standardised on
the so called NAB convention. It should be noted that some manufacturers
have used the alternative gender of chassis connector.

Chassis mounted socket (standard UK version 520i) or chassis mounted
plug (521i model only).

Chassis Mounted Socket or Plug
Pin 1} Chassis
Pin 2: Hot or phase
Pin 3: Cold or signal return

Note: On XLR connectors pin 1 mates before the other two pins and thus
makes the safety earth first,

To special order.
Chassis Mounted Socket
Pin 1: Cold or signal return

Pin 2: Connected to pin 1
Pin 3: Hot or phase