Yamaha GA24/12 Precautions, , Contents

ii

GA32/12, GA24/12—Owner’s Manual

Precautions

1. Avoid excessive heat, humidity, dust and

vibration

Keep the unit away from locations where it is

likely to be exposed to high temperatures or

humidity — such as near radiators, stoves, etc.

Also avoid locations which are subject to exces-

sive dust accumulation or vibration which could

cause mechanical damage.

2. Ventilation

The unit has ventilation slots on the top, rear and

bottom panels. Do not block these vents.

3. Avoid physical shocks

Strong physical shocks to the unit can cause dam-

age. Handle it with care.

4. Do not open the case or attempt repairs

or modiﬁcations yourself

This product contains no user-serviceable parts.

Refer all maintenance to qualiﬁed Yamaha service

personnel. Opening the case and/or tampering

with the internal circuitry voids the warranty.

5. Always power off before making connec-

tions

Always turn the power OFF before connecting or

disconnecting cables. This is important to pre-

vent damage to the unit itself as well as other con-

nected equipment.

6. Handle cables carefully

Always plug and unplug cables — including the

AC power cord — by gripping the connector, not

the cord.

7. Clean with a soft dry cloth

Never use solvents such as benzine or thinner to

clean the unit. Wipe clean with a soft, dry cloth.

8. Always use the correct power supply

Make sure that the power supply voltage speciﬁed

on the rear panel matches your local AC mains

supply. Also make sure that the AC mains supply

can deliver more than enough current to handle

all equipment used in your system.

Contents

Introduction....................................... 1

Features..................................................................1

Front Panel......................................... 2

Monaural input channels......................................2

Stereo input channels............................................4

Master Section ...................................6

Variable/Fix select section.....................................6

Mix section............................................................ 6

ST (Stereo) section................................................9

AUX RETURN section........................................10

MATRIX section..................................................11

C-R MONI (Control room monitor) section

PHONES (headphones) section.........................12

TAPE IN section..................................................13

TALKBACK section............................................ 14

METER SELECT section.....................................15

Meter bridge........................................................15

Rear Panel ........................................16

GA Diversity Function ......................19

What is GA Diversity?.........................................19

Setting the GA Diversity function......................19

Specifications ...................................20

General specifications......................................... 20

Input specifications.............................................21

Output specifications..........................................21

Dimensions..........................................................22

Block and Level diagram.....................................23

IMPORTANT NOTICE FOR

THE UNITED KINGDOM

Connecting the Plug and Cord

WARNING: THIS APPARATUS MUST BE EARTHED

IMPORTANT: The wires in this mains lead are coloured in accordance with

the following code:

GREEN-AND-YELLOW : EARTH

BLUE : NEUTRAL

BROWN : LIVE

As the colours of the wires in the mains lead of this apparatus may not

correspond with the coloured markings identifying the terminals in your

plug, proceed as follows:

The wire which is coloured GREEN and YELLOW must be connected to

the terminal in the plug which is marked by the letter E or by the safety earth

symbol or coloured GREEN and YELLOW.

The wire which is coloured BLUE must be connected to the terminal which

is marked with the letter N or coloured BLACK.

The wire which is coloured BROWN must be connected to the terminal

which is marked with the letter L or coloured RED.

* This applies only to products distributed by YAMAHA KEMBLE

MUSIC (U.K.) LTD.