TOA Electronics Stereo System WD 4800 User Manual

INSTRUCTION MANUAL  
ANTENNA DISTRIBUTOR  
WD-4800  
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.  
Indicates a potentially hazardous situation which, if mishandled, could result  
in death or serious personal injury.  
WARNING  
• 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.  
• 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.)  
To prevent a fire or electric shock, never open nor remove the unit case to modify 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.  
Indicates a potentially hazardous situation which, if mishandled, could result  
in moderate or minor personal injury, and/or property damage.  
CAUTION  
• 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.  
• 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.  
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5. CONNECTION  
• Up to four WT-4800 tuners can be connected to the WD-4800 using one or two receiving antennas.  
• The length of the antenna cables between the WD-4800 and the WT-4800 must not exceed 1 m.  
YW-4500  
YW-4500  
YW-4500  
YW-4500  
Connect to the front antenna inputs  
WD-4800  
120V/230V  
50/60Hz 25W  
TUNER POWER SUPPLY  
13V 250 mA  
ANT INPUT B  
ANT OUTPUT B (75 )  
ANT OUTPUT A (75 )  
ANT INPUT A  
(75 )  
(75 )  
VOLTAGE SELECT  
120V  
230V  
ANTENNA DISTRIBUTOR WD-4800  
ENGINEERED IN JAPAN  
ASSEMBLED IN TAIWAN  
ANT B  
DC IN  
REMOTE  
OUTPUT (600)  
MIX IN (10k)  
ANT A  
(BALANCED)  
WT-4800  
(UNBALANCED)  
(UNBALANCED)  
–20dBV  
LEVEL  
IN  
OUT  
OUT  
IN  
HOT  
COLD  
LINE  
–20dBV  
MIC  
–50dBV  
12–18V 250DmA  
ANT B  
DC IN  
REMOTE  
OUTPUT (600)  
MIX IN (10k)  
ANT A  
(BALANCED)  
WT-4800  
WT-4800  
WT-4800  
(UNBALANCED)  
(UNBALANCED)  
–20dBV  
LEVEL  
IN  
OUT  
OUT  
IN  
HOT  
COLD  
LINE  
–20dBV  
MIC  
–50dBV  
12–18V 250DmA  
ANT B  
DC IN  
REMOTE  
OUTPUT (600)  
MIX IN (10k)  
ANT A  
(BALANCED)  
(UNBALANCED)  
(UNBALANCED)  
–20dBV  
LEVEL  
IN  
OUT  
OUT  
IN  
HOT  
COLD  
LINE  
–20dBV  
MIC  
–50dBV  
12–18V 250DmA  
ANT B  
DC IN  
REMOTE  
OUTPUT (600)  
MIX IN (10k)  
ANT A  
(BALANCED)  
(UNBALANCED)  
(UNBALANCED)  
–20dBV  
LEVEL  
IN  
OUT  
OUT  
IN  
HOT  
COLD  
LINE  
–20dBV  
MIC  
–50dBV  
12–18V 250DmA  
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6. OPERATION  
Step 1. Turn on the power of both the WD-4800 and connected tuners (the power lamp lights).  
Step 2. Set the wireless microphone switch to the ON position.  
7. RACK MOUNTING  
Use an optional MB-15B bracket when mounting the unit in an equipment rack.  
Step 1. Remove rubber feet on the unit's bottom surface.  
Step 2. Using the screws supplied with the MB-15B, mount the MB-15B to the unit's sides.  
Mounting bracket MB-15B (optional)  
3 x 14 screw (supplied with MB-15B)  
Step 3. Using other screws also supplied with the MB-15B, mount the unit in the rack.  
Rack  
M5 fiber washer (supplied with MB-15B)  
M5 x 12 screw (supplied with MB-15B)  
8. SPECIFICATIONS  
Power Source  
AC mains (120 V/230 V selectable)  
Power Consumption  
Frequency Range  
Distribution Channel  
Antenna Input  
25 W  
VHF/UHF  
2 channels  
2 inputs (front x 1, rear x 1), 75 , BNC (phantom powering of 9 V DC/25 mA for antenna)  
Antenna Output  
DC Power Supply  
Indicator  
4 outputs, 75 , BNC  
4 outputs (Each output: 13 V DC/250 mA)  
Power lamp  
Operating Temperature  
Finish  
–10 to +50°C  
Front panel: Al coating, black  
Case:  
Pre-coated steel plate, black  
Dimensions  
Weight  
420 (w) x 44 (h) x 305.5 (d) mm  
3.55 kg  
Note: The design and specifications are subject to change without notice for improvement.  
• Accessories  
DC cable ............................................................ 4  
• Optional Product  
Rack mounting bracket MB-15B  
Printed in Taiwan  
133-07-186-5B  
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