TOA BA-235 CU, BA-260 CU Instructions

OPERATING INSTRUCTIONS

POWER AMPLIFIERS BA-235

BA-260

1. IMPORTANT SAFETY INSTRUCTIONS .... 2

2. SAFETY PRECAUTIONS ........................... 3

3. GENERAL DESCRIPTION ......................... 5

4. FEATURES ................................................. 5

5. NOMENCLATURE AND FUNCTIONS

Front ............................................................ 5

Rear ............................................................. 6

6. CONNECTIONS

6.1. Removable Terminal Plug

Connection ........................................... 7

6.2. Input Connections ................................ 7

6.3. Output Connections .............................. 8

7. REMOTE VOLUME CONTROL

CONNECTION ............................................ 8

8. 2-CHANNEL BROADCAST ........................ 9

9. OPERATION ............................................... 9

10. INSTALLATION PRECAUTIONS ............... 9

11. RACK MOUNTING BRACKET

ATTACHMENT ......................................... 10

12. VOLUME SETTING .................................. 11

13. VOLUME CONTROL COVER .................. 11

14. BLOCK DIAGRAM ................................... 11

15. DIMENSIONAL DIAGRAM ....................... 12

16. SPECIFICATIONS .................................... 12

Accessories ............................................... 12

Optional products ...................................... 12

MASTER

SIGNAL PEAK POWER

ON

OFF

BASS TREBLE

POWER AMPLIFIER BA-260

010

Thank you for purchasing TOA's Power Amplifiers.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.

TABLE OF CONTENTS

This figure represents the BA-260.

2

1. IMPORTANT SAFETY INSTRUCTIONS

• Read these instructions.

• Keep these instructions.

• Heed all warnings.

• Follow all instructions.

• Do not use this apparatus near water.

• Clean only with dry cloth.

• Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.

• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.

• Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide
blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult
an electrician for replacement of the obsolete outlet.

• Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and
the point where they exit from the apparatus.

• Only use attachments/accessories specified by the manufacturer.

• Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer,
or sold with the apparatus. When a cart is used, use caution when moving the
cart/apparatus combination to avoid injury from tip-over.

• Unplug this apparatus during lightning storms or when unused for long periods of time.

• Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have
fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or
has been dropped.

INSTRUCTIONS ESSENTIELLES POUR LA SÉCURITÉ

• Lire ces instructions.

• Conserver ces instructions pour référence ultérieure.

• Respecter tous les avertissements.

• Suivre toutes les instructions.

• Ne pas utiliser cet appareil à proximité d'eau.

• Nettoyer uniquement à l'aide d'un chiffon sec.

• Ne pas obstruer les orifices de ventilation. Installer conformément aux instructions du fabricant.

• Ne pas installer à proximité de sources de chaleur telles que des radiateurs, des registres thermiques, des
chaudières ou d'autres appareils (notamment des amplificateurs) produisant de la chaleur.

• Ne pas contourner la fonction de sécurité de la fiche polarisée ou de mise à la terre. Une fiche polarisée est
équipée de deux broches, dont l'une est plus large que l'autre. Une fiche de mise à la terre est équipée de
deux broches et d'une troisième pour la mise à la terre. Cette dernière, la plus large, est prévue à des fins
de sécurité. Si la fiche fournie ne peut être insérée dans la prise électrique souhaitée, consulter un
électricien pour faire remplacer cette dernière.

• Protéger le cordon d'alimentation pour éviter qu'il ne soit piétiné ou pincé, notamment au niveau des fiches,
des prises de courant ou de son point de sortie de l'appareil.

• Utiliser uniquement les accessoires spécifiés par le fabricant.

• Utiliser uniquement avec le chariot, support, trépied, la patte de montage ou la table
spécifiés par le fabricant ou vendus avec l'appareil. En cas d'utilisation d'un chariot,
manipuler la combinaison chariot/appareil pour éviter les blessures dues à un
renversement.

• Débrancher cet appareil pendant les orages ainsi que lorsqu'il reste inutilisé pendant une période prolongée.

• La maintenance de l'appareil doit être confiée à un technicien après-vente qualifié. Une maintenance s'avère
nécessaire si l'appareil est endommagé (au niveau du cordon d'alimentation ou de la fiche), a été mouillé
par un liquide, un objet est tombé à l'intérieur, s'il a été exposé à la pluie ou l'humidité, s'il ne fonctionne pas
normalement ou s'il est tombé.

3

When Installing the Unit

• Do not expose the unit to rain or an environment
where it may be splashed by water or other liquids,
as doing so may result in fire or electric shock.

• Ne pas exposer l'appareil à la pluie et le protéger
de tout contact avec de l'eau ou d'autres liquides
afin d'éviter un incendie ou une électrocution.

• Use the unit only with the voltage specified on the
unit. Using a voltage higher than that which is
specified may result in fire or electric shock.

• Do not cut, kink, otherwise damage nor modify the
power supply cord. In addition, avoid using the
power cord in close proximity to heaters, and never
place heavy objects -- including the unit itself -- on
the power cord, as doing so may result in fire or
electric shock.

• Avoid installing or mounting the unit in unstable
locations, such as on a rickety table or a slanted
surface. Doing so may result in the unit falling
down and causing personal injury and/or property
damage.

• External wiring connected to the terminals marked
with requires installation by an instructed person.

• Les câbles externes branchés aux bornes
marquées de doivent être installé par un
technicien spécialement formé.

• The apparatus shall be connected to a mains
socket outlet with a protective earthing connection.

• L'appareil doit être branché à une prise
d'alimentation avec mise à la terre de protection.

• The socket-outlet shall be installed near the
equipment and the plug (disconnecting device)
shall be easily accessible.

• La prise doit être installée à proximité de
l'équipement et la fiche (dispositif de déconnexion)
doit être facilement accessible.

• Use the optional Rack mounting bracket MB-25B­BK or MB-25B-J when mounting the unit(s) in an
equipment rack. Remove four M4 x 8 screws on
both sides of the unit, and mount the bracket there
using the M4 x 16 screws (supplied with the
bracket) instead.

• Utilisez la patte de montage en bâti en option MB­25B-BK ou MB-25B-J pour monter l'unité en bâti.
Retirez les quatre vis M4 x 8 sur les deux côtés de
l'appareil, et montez la patte à l'aide des vis M4 x
16 fournies avec la patte.

When the Unit is in Use

• Should the following irregularity be found during
use, immediately switch off the power, disconnect
the power supply plug from the AC outlet and
contact your nearest TOA dealer. Make no further
attempt to operate the unit in this condition as this
may cause fire or electric shock.

· If you detect smoke or a strange smell coming

from the unit

· If water or any metallic object gets into the unit

· If the unit falls, or the unit case breaks

· If the power supply cord is damaged (exposure of

the core, disconnection, etc.)

· If it is malfunctioning (no tone sounds.)

• To prevent a fire or electric shock, never open nor
remove the unit case as there are high voltage
components inside the unit. Refer all servicing to
your nearest TOA dealer.

2. SAFETY PRECAUTIONS

• Before installation or use, be sure to carefully read all the instructions in this section for correct and safe
operation.

• Be sure to follow all the precautionary instructions in this section, which contain important warnings and/or
cautions regarding safety.

• After reading, keep this manual handy for future reference.

Safety Symbol and Message Conventions

Safety symbols and messages described below are used in this manual to prevent bodily injury and property
damage which could result from mishandling. Before operating your product, read this manual first and
understand the safety symbols and messages so you are thoroughly aware of the potential safety hazards.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of
important operation and maintenance (servicing) instruction in the literature accompanying the
appliance.

Le point d'exclamation à l'intérieur d'un triangle équilatéral avertit l'utilisateur de l'existence
d'instructions d'utilisation et d'entretien (réparation) dans la documentation fournie avec l'appareil.

WARNING

Indicates a potentially hazardous situation which,
if mishandled, could result in death or serious
personal injury.

4

The lighting flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user
to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of
sufficient magnitude to constitute a risk of electric shock to persons.

L'éclair accompagné d'un symbole représentant une pointe de flèche à l'intérieur d'un triangle
équilatéral avertit l'utilisateur de la présence d'une "tension dangereuse" à l'intérieur de l'enceinte
du téléviseur, dont la magnitude peut être suffisante pour constituer un risque de choc électrique
pour les personnes.

• Do not place cups, bowls, or other containers of
liquid or metallic objects on top of the unit. If they
accidentally spill into the unit, this may cause a fire
or electric shock.

• Ne pas placer de tasses, bols ou autres récipients
remplis de liquides ou d'objets métalliques au­dessus de l'appareil. S'ils se répandent par
accident sur l'appareil, ils peuvent provoquer un
incendie ou une électrocution.

• Do not insert nor drop metallic objects or
flammable materials in the ventilation slots of the
unit's cover, as this may result in fire or electric
shock.

When Installing the Unit

• Never plug in nor remove the power supply plug
with wet hands, as doing so may cause electric
shock.

• When unplugging the power supply cord, be sure
to grasp the power supply plug; never pull on the
cord itself. Operating the unit with a damaged
power supply cord may cause a fire or electric
shock.

• When moving the unit, be sure to remove its power
supply cord from the wall outlet. Moving the unit
with the power cord connected to the outlet may
cause damage to the power cord, resulting in fire
or electric shock. When removing the power cord,
be sure to hold its plug to pull.

• Do not block the ventilation slots in the unit's cover.
Doing so may cause heat to build up inside the unit
and result in fire.

• Avoid installing the unit in humid or dusty locations,
in locations exposed to the direct sunlight, near the
heaters, or in locations generating sooty smoke or
steam as doing otherwise may result in fire or
electric shock.

• To avoid electric shocks, be sure to unplug the
unit's power supply cord when connecting
speakers.

• Be sure to follow the instructions below when rack­mounting the unit. Failure to do so may cause a fire
or personal injury.

· Install the equipment rack on a stable, hard floor.

Fix it with anchor bolts or take other
arrangements to prevent it from falling down.

· When connecting the unit's power cord to an AC

outlet, use the AC outlet with current capacity
allowable to the unit.

· No rack-mounting screws are supplied with the

unit. Separately prepare the appropriate screws
for the rack.

• Keep the amplifier over 10 cm (3.94") away from
objects that may obstruct air flow to prevent the
unit's internal temperature rise.

When the Unit is in Use

• Do not place heavy objects on the unit as this may
cause it to fall or break which may result in
personal injury and/or property damage. In
addition, the object itself may fall off and cause
injury and/or damage.

• Make sure that the volume control is set to
minimum position before power is switched on.
Loud noise produced at high volume when power
is switched on can impair hearing.

• Do not operate the unit for an extended period of
time with the sound distorting. This is an indication
of a malfunction, which in turn can cause heat to
generate and result in a fire.

• If dust accumulates on the power supply plug or in
the wall AC outlet, a fire may result. Clean it
periodically. In addition, insert the plug in the wall
outlet securely.

• Switch off the power, and unplug the power supply
plug from the AC outlet for safety purposes when
cleaning or leaving the unit unused for 10 days or
more. Doing otherwise may cause a fire or electric
shock.

CAUTION

Indicates a potentially hazardous situation which,
if mishandled, could result in moderate or minor
personal injury, and/or property damage.

Over 10 cm
(3.94")

Over 10 cm (3.94") Over 10 cm (3.94")