TOA TS-770 CU Instructions

OPERATING INSTRUCTIONS

CONFERENCE SYSTEM TS-770 SERIES

TS-770

TS-771

TS-772

TS-775

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

TS-770 (CENTRAL UNIT) TS-771 (CHAIRMAN UNIT) TS-772 (DELEGATE UNIT) TS-773 (MICROPHONE) TS-774 (MICROPHONE)

TS-775 (REMOTE DELEGATE INTERFACE UNIT) YR-770-2M (2 m EXTENSION CORD) YR-770-10M (10 m EXTENSION CORD)

TABLE OF CONTENTS

1. IMPORTANT SAFETY INSTRUCTIONS ..................................................... 3

2. SAFETY PRECAUTIONS ................................................................................. 4

3. GENERAL DESCRIPTION .............................................................................. 6

4. FEATURES ........................................................................................................... 6

5. NOMENCLATURE AND FUNCTIONS

5.1. TS-770 Central Unit ........................................................................................... 7

5.2. TS-771 Chairman Unit and TS-772 Delegate Unit ............................................. 9

5.3. TS-775 Remote Delegate Interface Unit .......................................................... 11

6. OPERATING CHAIRMAN AND DELEGATE UNITS

6.1. Making Speech ................................................................................................ 12

6.2. Making Priority Speech (Chairman Unit TS-771 Only) ..................................... 13

7. HOLDING REMOTE CONFERENCES

7.1. Remote Conference Procedures ...................................................................... 14

7.2. Speech Operation When the Remote Delegate Interface Unit

Is Set to AUTO Mode ....................................................................................... 14

7.3. Speech Operation When the Remote Delegate Interface Unit

Is Set to MANUAL Mode .................................................................................. 15

7.4. Setting Examples ............................................................................................. 15

8. FUNCTION SETTINGS

8.1. Speaker Restriction Function

8.1.1. Setting procedure ................................................................................... 16

8.1.2. Restricted number of simultaneously operable Delegate units

and each conference unit's operation .................................................... 16

8.2. Automatic Mic-Off Function .............................................................................. 17

8.3 All Mic-On Function ........................................................................................... 17

9. RECORDING

9.1. Recording with the Central Unit ....................................................................... 18

9.2. Recording with the Chairman Unit or Delegate Unit ........................................ 18

10. INSTALLATION AND CONNECTION

10.1. Connection Example ...................................................................................... 19

10.2. Installation Procedures ................................................................................... 20

10.3. Basic System Installation and Adjustment

10.3.1. Connecting the Chairman and Delegate units to the Central unit ...... 21

10.3.2. Setting functions and adjusting Chairman and Delegate units

sound output volume .......................................................................... 23

11. IF USING MULTIPLE CENTRAL UNITS: .................................................. 25

12. WHEN HOLDING REMOTE CONFERENCES: ...................................... 26

13. BLOCK DIAGRAMS

13.1. TS-770 Central Unit ....................................................................................... 29

13.2. TS-771 Chairman Unit ................................................................................... 29

13.3. TS-772 Delegate Unit ..................................................................................... 30

13.4. TS-775 Remote Delegate Interface Unit ........................................................ 30

14. SPECIFICATIONS

14.1. TS-770 Central Unit ....................................................................................... 31

14.2. TS-771 Chairman Unit and TS-772 Delegate Unit ......................................... 31

14.3. TS-773 and TS-774 Microphones .................................................................. 32

14.4. TS-775 Remote Delegate Interface Unit ........................................................ 32

14.5. YR-770-2M 2 m Extension Cord and YR-770-10M 10 m Extension Cord ..... 32

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 is 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.

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.

• 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. (TS770 only)

• 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. (TS-770 only)

• 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.

• Since the unit is designed for in-door use, do not install it outdoors. If installed outdoors, the aging of parts causes the unit to fall off, resulting in personal injury. Also, when it gets wet with rain, there is a danger of electric shock.

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.) (TS-770 only)

· 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 qualified service personnel.

• 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.

• 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.

• Do not touch a power supply plug during thunder and lightning, as this may result in electric shock. (TS-770 only)

• The apparatus shall be connected to a mains socket outlet with a protective earthing connection. (TS-770 only)

• L'appareil doit être branché à une prise d'alimentation avec mise à la terre de protection. (TS-770 uniquement)

• The socket-outlet shall be installed near the equipment and the plug (disconnecting device) shall be easily accessible. (TS-770 only)

• La prise doit être installée à proximité de l'équipement et la fiche (dispositif de déconnexion) doit être facilement accessible. (TS-770 uniquement)

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.

WARNING

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

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

WARNING

CAUTION

When Installing the Unit

• Never plug in nor remove the power supply plug with wet hands, as doing so may cause electric shock. (TS-770 only)

• 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. (TS-770 only)

• 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. (TS-770 only)

• 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. Also, periodically clean the ventilation slots of dust. (TS-770 only)

• 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.

When the Unit is in Use

• Contact your TOA dealer as to the cleaning. If dust is allowed to accumulate in the unit over a long period of time, a fire or damage to the unit may result. (TS-770 only)

• 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. (TS-770 only)

• 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. (TS-770 only)

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.

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.

3. GENERAL DESCRIPTION

The TS-770 Series conference system is designed for quick and easy installation and storage. The system can be installed by merely connecting conference units* to the TS-770 Central unit. The use of the Remote Delegate Interface unit permits a party in remote location to participate in the conference.

* Collective name of the following 3 models: TS-771 Chairman Unit, TS-772 Delegate Unit, and TS-775

Remote Delegate Interface Unit.

4. FEATURES

• Conference speech can be amplified by simply connecting the Chairman and Delegate units to the Central unit.

• Connecting the Remote Delegate Interface unit to the system allows conferences to be held between remote locations via telephone lines or PCs.

• Up to 70 conference units can be connected per Central unit. (35 units per line x 2 lines.)

• Up to 3 Central units and up to 210 conference units can be connected per system.

• Optional 2-meter and 10-meter extension cables allow wiring suitable to local installation conditions.

• Either the TS-773 or TS-774 Microphone can be used with the TS-771 Chairman unit and the TS-772 Delegate unit.

• Because the microphone for both the Chairman and Delegate units is detachable, both units can be stored without taking up much space.

• Test function allows easy confirmation of connections between conference units.

• The number of simultaneously operable Delegate units can be limited using the Speaker Restriction function. (Can be set to 0, 1, 3 or 6 units.)

• Even if the speaker forgets to turn off his or her microphone after speech completion, the Automatic Mic-Off function automatically switches off the microphone after a preset interval elapses. (Can be set to OFF, 20 or 40 seconds.)

• Conference contents can be recorded using a recording equipment.

• All Mic-On function allows conferences to be held without requiring talk key operation. (A dedicated function for conference recording.)

5. NOMENCLATURE AND FUNCTIONS

5.1. TS-770 Central Unit

[Front]

1. Power indicator [POWER]

Lights when the power switch (11) on the rear panel is set to the ON position.

2. Microphone volume control [MIC]

Adjusts the volume of the microphone connected to the microphone input jack (7).

3. AUX volume control [AUX]

Adjusts the volume of equipment connected to AUX input jack (8).

4. Line volume control [LINE]

Adjusts the volume of the conference unit's built-in speaker.

5. Speaker restriction switch [MIC LIMITER]

Sets the number of delegate units that can be used simultaneously.

6. Automatic mic-off setting switch [TIME OUT]

It is possible to set the conference unit's microphone to be automatically turned off after speech completion.

7. Mic input jack [MIC]

Connects to a microphone. (600 Ω, –60 dB*, unbalanced)

8. AUX input jack [AUX]

Connects to a CD or cassette deck. (10 kΩ, –20 dB*, unbalanced)

9. Test/All Mic-On Switch [TEST/MIC ON]

Setting this switch to the ON position turns on the microphones of all conference units. This switch is intended for testing purposes during installation, as well as for open conferences in which speech can be made freely from any conference unit.

10. Test/All Mic-On Indicator

Lights when the Test/All Mic-On switch is set to the ON position.

* 0 dB = 1 V

2 3 4 5 6

7 8 9

CENTRAL UNIT TS-770

[Rear]

11. Power switch [POWER]

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

12. Expansion Switch [EXPANSION/MAIN]

Used when expanding the Central unit. (Equipped with a lock mechanism.) Set this switch to the EXPANSION position if expanded.

13. Expansion IN/OUT terminals [EXT 1/2]

Connect to the Central unit(s) to be expanded.

14. LINE 1 connection terminal [LINE 1]

Connects to the conference unit. Up to 35 conference units can be connected per line.

15. LINE 2 connection terminal [LINE 2]

Connects to the conference unit. Up to 35 conference units can be connected per line.

16. Recording output terminal [REC OUT]

(Phone jack)

Connects to an Alternating cassette recorder, etc. (10 kΩ, –20 dB*, unbalanced)

17. Recording output terminals [REC OUT] (RCA jack)

Connect to a recording machine. (10 kΩ, –20 dB*, unbalanced)

18. AC inlet

Connects to the supplied power cord.

19. Equalizer insertion input terminal [EQUALIZER IN]

Connects to the output terminal of equalizer. (10 kΩ, –20 dB*, unbalanced)

20. Equalizer insertion output terminal [EQUALIZER OUT]

Connects to the input terminal of equalizer. (10 kΩ, –20 dB*, unbalanced)

21. Equalizer insertion switch [EQUALIZER ON/OFF]

Set to the ON position when using the equalizer.

* 0 dB = 1 V

12 13 14 15 16 17

11 18 19 20 21

5.2. TS-771 Chairman Unit and TS-772 Delegate Unit

[TS-771 Top] [TS-772 Top]

1. Line connection cord

Connect this cord to the Line Connection terminal of the Central unit or that of the next preceding linked conference unit.

2. Microphone connection connector

Connects to the TS-773 or TS-774 Microphone.

3. Speaker

Outputs other speakers' voices. Adjust the volume with the TS-770 Central unit's line volume control. The built-in speaker is temporarily disabled while speech is made using this unit.

4. Microphone in-use indicator

Lights when the microphone can be used.

5. Priority key [PRIORITY] (TS-771 only)

While this key is pressed, the microphone in-use indicator remains lit, allowing priority speech to go through. In this case, no other conference units can be used. Pressing this key causes a single tone chime to sound at the remaining conference units.

6. Talk key [TALK]

Press this key to speak. The microphone in-use indicator lights. Press this key again to turn off the microphone. The microphone in-use indicator extinguishes.

TS-771

PRIORITY TALK

5 6

TS-772

TALK

[TS-771/TS-772 Side]

7. Volume control

Adjusts the sound volume from the Recording/Headphone Output Terminal.

Note

Use the volume control of the TS-770 Central unit to adjust the sound output volume from the internal speaker (3).

8. Recording/Headphone output terminals

[HEADPHONES]

Connect recording equipment or headphones to these terminals. No sound is output from the internal speaker (3) while this terminal is in use.

[TS-771/TS-772 Rear]

9. Line connection terminal [LINE]

Connect the following linked conference unit's line connection cord to this terminal.

10. Control output terminal [CONTROL OUTPUT]

This terminal is an open collector output interlocked with the Microphone in-use indicator, and is enabled when in speech mode. (24 V DC, Max. 50 mA)

7 8

+ 22 hidden pages