Toa EV-20A User manual

OPERATING INSTRUCTIONS
SOUND REPEATER EV-20A
Please follow the instructions in this manual to obtain the optimum results from this unit.
We also recommend that you keep this manual handy for future reference.

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.
• 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.
• Install the unit only in a location that can structurally support the weight of the unit and the mounting bracket.
Doing otherwise 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.
• Fix the unit firmly not to fall off when installing it high above the floor.
Improper fixing may cause the unit to fall off, resulting in personal injury.
• Use the specified mounting bracket in combination. Doing otherwise may cause the unit or component to fall
off, resulting in personal injury.
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.
• 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 unit's ventilation slots or the
SmartMedia receptacle, as this may result in fire or electric shock.
• Do not touch a plug during thunder and lightning, as this may result in electric shock.
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1. SAFETY PRECAUTIONS
• Be sure to read the instructions in this section carefully before use.
• Make sure to observe the instructions in this manual as the conventions of safety symbols and messages
regarded as very important precautions are included.
• We also recommend you keep this instruction 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

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2. GENERAL DESCRIPTION
The TOA EV-20A is an all-in-one, indoor-use Sound Repeater that is especially useful for small-scale
broadcasting.
Equipped with its own built-in amplifier and speaker, it can repeatedly broadcast programmed sound content,
and also features a built-in sensor that permits it to automatically begin broadcasts when it detects somebody
approaching.
The EV-20A can record and play back up to two different messages and two different music pieces.
Recording can be easily performed using either its built-in microphone or external input, and audio files can
also be input from a PC using the supplied software.
3. FEATURES
• Supplied software permits audio files to be easily transferred from a PC to the Sound Repeater over a USB
connection.
• Audio files are recorded on the SmartMedia flash memory card installed in the Sound Repeater.
• Maximum SmartMedia recording time:
16 MB card: 3 minutes
32 – 128 MB cards: 6 minutes
• Messages can be played back and broadcast by way of external activation, or external source can be
broadcast from equipment connected to the external input.
• Messages can be repeatedly broadcast, and the automatic playback interval can be set to a maximum of
1 hour.
• The Sound Repeater can be mounted to a wall or ceiling using the optional C-BC31 Mounting Bracket.
4. HANDLING PRECAUTIONS
• When using commercial SmartMedia cards, be sure to format first before using. (Refer to p. 13.)
Note: The supplied SmartMedia card has been formatted.
• To avoid radio interference, keep the unit and the AC adapter as far away as possible from radios or
wireless tuners.
• Do not open the case nor perform any modifications to the unit, as this may result in unit failure. Leave the
inspection, adjustment and repair of the unit's internal circuitry to your TOA dealer.
• The CD-ROM supplied with the unit is not for audio applications, and should not be used in an ordinary
audio CD player.
• Internal Copyright Acts prohibit the copy or use of commercially available music and sound data for
commercial purposes without the approval of the copyright holder. It is strongly advised that a copyright
lawyer be consulted when using such material.
• When cleaning the unit, be sure to switch off the unit's power first, then wipe with a dry cloth. Should the unit
become very dirty, use a cloth dampened in a neutral detergent. Never use benzene, thinner or chemically-
treated towels, as the unit's finish may be damaged.

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6. Message indicator
Flashes or continuously lights depending on the
message operation status.
7. Record button
Press this button to record.
8. Message volume control
Adjusts the message playback sound volume.
Note: This control is disabled during recording.
9. ID setting switch
Used to assign an identification number when
using two or more Sound Repeaters.
10. Message selector switch
Selects Message A or B.
11. Music indicator
Flashes or continuously lights depending on the
music operating status.
12. Music volume control
Adjusts the music playback sound volume.
Note: This control is disabled during recording.
13. Playback interval setting switch
Sets the repeat interval between message
playbacks. (Refer to p. 12.)
This switch is factory-preset to " " (Repeat
broadcasts disabled).
14. Music selector switch
Selects Music channel A or B.
15. Sensor switch
• ON: Enables the front panel-mounted sensor.
• OFF: Disables the front panel-mounted sensor.
16. Record/play selector switch
• Left: Set to this position when recording the
message.
• Center: Set to this position when recording
music.
• Right: Set to this position when playing.
17. Playback method selector switch
Used to set the mixing method of message and
music.
• Left [MSG]: Music output is muted when
a message is played back.
• Center [MSG-BGM]: Music volume is reduced
when a message is played
back. (The volume level
decreases to 1/4.)
• Right [MSG-BGM]: Music playback volume
remains unchanged even
when a message is played
back.
18. USB indicator
Continuously lights or flashes during USB
communications.
19. USB terminal
Connects to a PC or a USB Hub using the
supplied USB cable.
20. External activation terminal
"Make" this terminal when externally activating
the message or when directly broadcasting
sound from equipment connected to the external
input.
21. MIC/LINE selector switch
Select the appropriate setting depending on the
equipment connected to the External
input/external record input terminal (23).
Set to MIC (upper position) if a microphone is
connected, and to LINE (lower position) if other
equipment is connected.
This switch is factory-preset to the LINE position.
Note: Set this switch to LINE (lower position) if
no microphone is connected.
22. Wire hook
Used to protect the unit against stealing.
23. External input/external record input terminal
Connect a microphone or CD player to this
terminal. Set the MIC/LINE selector switch (21)
corresponding to the type of equipment
connected to this terminal.
Shown below are the input specifications set
using the MIC/LINE selector switch:
• MIC: –40 dB*, 2.2 k , mini-jack, unbalanced
• LINE: 0 dB*, 10 k , mini-jack, unbalanced
* 0 dB = 1 V
24. Cord clamp
Wrap the AC adapter cord around this clamp to
prevent the plug from pulling out.
25. AC adapter input terminal
Connects to an AC adapter.
26. Mounting screw hole
AU1/4 camera screw can be used. Use the
optional C-BC31 Camera Mounting Bracket
when mounting the Sound Repeater to a wall.
(For mounting, refer to the instruction manual
enclosed with the C-BC31.)

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Notes
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Step 1.
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Note
1-2.
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7. OPERATION

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