Yamaha GA24/12 User Manual
Page 2
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
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.