TOA Electronics WT-4820, WT-4820 US User Manual
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OPERATING INSTRUCTIONS
UHF WIRELESS TUNER |
WT-4820 |
ANT |
A |
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ANT |
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B |
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PEAK |
CHANNEL |
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VOLUME |
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10 |
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T
UNER1
ANT |
A |
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ANT |
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B |
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PE |
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AK |
CHANNEL |
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VOLUME |
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10 |
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T |
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UNER2 |
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DIV |
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ERSI |
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PO |
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TY |
WIRE |
O |
R |
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LE |
O |
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SS T |
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UN |
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ER |
WT- |
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4820 |
TABLE OF CONTENTS
1. |
SAFETY PRECAUTIONS ........................... |
2 |
7. |
PRECAUTIONS ON ANTENNA |
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2. |
GENERAL DESCRIPTION ......................... |
3 |
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INSTALLATION .......................................... |
5 |
3. |
FEATURES ................................................. |
3 |
8. |
OPERATION ............................................... |
6 |
4. |
HANDLING PRECAUTIONS ...................... |
3 |
9. |
CONNECTION ............................................ |
6 |
5. |
NOMENCLATURE AND FUNCTIONS |
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10. |
INSTALLATION |
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Front ............................................................ |
4 |
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10.1. Rack Mounting ................................... |
7 |
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Rear ............................................................. |
4 |
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10.2. Installing the Unit on a Desk ............... |
8 |
6. |
INSTALLING THE WTU-4800 |
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11. |
SPECIFICATIONS ...................................... |
8 |
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TUNER MODULE ....................................... |
5 |
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Accessories ................................................. |
8 |
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.
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.
WARNING
Indicates a potentially hazardous situation which, if mishandled, could result in death or serious personal injury.
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.
•To prevent lightning strikes, install the unit at least five meters away from a lightning rod, and yet within the protective range (angle of 45°) of the lightning conductor. Lightning strikes may cause a fire, electric shock or personal injury.
•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.)
·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 touch a plug or antenna during thunder and lightning, as this may result in electric shock.
CAUTION
Indicates a potentially hazardous situation which, if mishandled, could result in moderate or minor personal injury, and/or property damage.
The servicing instructions are for use by qualified personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. Refer all servicing to qualified service personnel.
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.
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•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 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.
•Leave the installation of the optional YW-4500 antenna to your TOA dealer because the installation requires expert knowledge. Improper installation may cause the antenna to fall, resulting in personal injury or electric shock.
•The socket-outlet shall be installed near the equipment and shall be easily accessible. A fire or electric shock may result.
•Install the AC-DC adapter in well-ventilated locations. Do not install the adapter in a confined space such as a book case or similar unit . In addition, keep over 1 m space above the adapter.
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.
•Use the dedicated AC-DC adapter for the unit. Note that the use of other adapter may cause 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. A fire or electric shock may result.
2. GENERAL DESCRIPTION
The WT-4820 is a diversity tuner that can accept up to two wireless tuner modules of UHF band (WTU-4800). It can be mounted in an EIA 19-inch equipment rack using an optional MB-WT3 or MB-WT4 Rack Mount Bracket Kit.
3. FEATURES
•Half-rack mount size
•Easy-to-change channel number accessible from the front.
•Front-loading modular construction permits easy installation of the WTU-4800 tuner module even after the unit is rack-mounted.
•Antenna outputs connect an additional tuner unit, expanding the system to maximum 4 channels (2 each tuner modules incorporated) without need for extra antenna mixers/distributors.
•A mix input mixes outputs of two or more tuner units into one output signal.
4. HANDLING PRECAUTIONS
•Use only WM-4200 series and WM-4300 series Wireless Microphones. Other wireless microphones cannot be used.
•Turn the power switch off after use.
•When mounting in an equipment rack, place the unit away from high-temperature equipment.
•When using two or more wireless microphones at the same time in the same location, set them to different channels and keep them at least 50 cm from each other.
•Keep the wireless microphone at least 3 m away from the antenna.
•Connect two antennas to the unit. Using a single antenna disables the diversity effect.
•Keep the unit as far away as possible from fluorescent lamps, digital equipment, computers, and other equipment generating high-frequency noise.
•To clean the unit, switch the power off, then wipe with a dry cloth. When the unit gets very dirty, use a cloth damped in a neutral cleanser. Never use benzene, thinner or chemically-treated cleaning cloth because such volatile liquids could deform or discolor the unit.
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