Toa BG-235 User Manual

OPERATING INSTRUCTIONS

MIXER AMPLIFIERS BG-220

BG-235

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 ........................................... 8

6.2. Input Connections ................................ 8

6.3. Output Connections .............................. 9

6.4. Manual Mute Terminal Connection ...... 9

7. MUTING FUNCTION

7.1. Manual Mute ....................................... 10

7.2. Automatic Mute .................................. 10

8. MOH OUTPUT ASSIGNMENT ................. 11

9. 2-CHANNEL BROADCAST ...................... 11

10. OPERATION ............................................. 12

11. INSTALLATION PRECAUTIONS ............. 12

12. RACK MOUNTING BRACKET

ATTACHMENT ......................................... 12

13. VOLUME SETTING .................................. 13

14. VOLUME CONTROL COVER .................. 13

15. BLOCK DIAGRAM ................................... 14

16. DIMENSIONAL DIAGRAM ....................... 15

17. SPECIFICATIONS .................................... 16

Accessories ............................................... 16

Optional products ...................................... 16

MIC/LINE 1

MIXER AMPLIFIER BG-235

BASS

010 010 010

TREBLE

LINE 2 LINE 3

SIGNAL PEAK POWER

OFF

Thank you for purchasing TOA's Mixer 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 BG-235.

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.

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-25B-BK 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 MB-25B-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

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.

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

WARNING

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.

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 rack-mounting 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.

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

CAUTION

· 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.

• 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 au-dessus 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.

Over 10 cm (3.94")

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

5. NOMENCLATURE AND FUNCTIONS

[Front]

1. Power switch

Power is switched on and off with each depression of this switch.

2. Power indicator

Lights blue when the Power switch (1) is switched on.

3. GENERAL DESCRIPTION

The BG-220 and BG-235 are 3-input mixer amplifiers for background music and general announcement. Power output is rated at 20 W for the BG-220 and 35 W for the BG-235. These units are suited for use in bars, retail stores, and banquet rooms, and are equipped with the MOH output that permits 2-channel broadcast when used in conjunction with the optional booster amplifier BA-235 (35 W) or BA-260 (60 W).

4. FEATURES

• Each input freely assignable to the MOH output.

• Automatic or manual mute function.

• Easy setting of each function with the rear-mounted DIP switches. (Input to MOH output assignment, Mute settings, and MIC/LINE 1 level settings)

• Supplied volume control covers prevent accidental operation of input knobs.

• Front operable bass and treble controls. Also front panel recessed knobs help to prevent accidental operation.

• Removable input/output terminal blocks facilitate installation and maintenance. Besides, RCA jacks provided for Lines 2 and 3.

L'appareil ne doit pas être exposé aux éclaboussures ou écoulements et tous objets remplis de liquide, tels que vases, ne doivent pas être sur l’appareil.

ATTENTION

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.