Toa WT-740U, Руководство по эксплуатации

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Installation Of Antenna
Install the receiving antenna, tuner and connection cables, as far away as possible from such equipment
that generates radio frequency noise as cars, fluorescent lamps and computerized equipment.
Do not install the antenna near the steel-made staff and like a lockers. And keep the antenna away from
the wall more than 2 feet (60 cm)
If the distance between the wireless microphone and the receiving antenna is 60 to 100 feet (20 to 30 m),
the radio wave can be received in good condition when the system uses a single antenna. Therefore,
install the antenna within 100 feet (30 m) from the wireless microphone. (The YW-460U should be
installed within 50 feet (15 m) from the wireless microphone.)
To minimize cable losses, do not extend connection cables longer than necessary.
Specification of the co-axial cable
Modifying The Output Connector To Balanced Type
NOTE: This modification is sololy intended for a qualified service personnel.
Before starting the modification, arrange for input
transformers Model IT-437 (optional).
1) Be sure to unplug the power cable from the wall
AC outlet.
2) Unscrew the unit's top cover and remove the PC
board from the chassis.
3) Cut or insert and solder the jumper in accordance
with following table.
4) Mount the IT-437 as shown below and solder the
lead wire and nails.
EXPLODED VIEW
SOLDER THE NAILS.
IT-437
*1) Remove the JP4-1 (JP122) clearly.
*2) Use tinned wire or the removed jumper wire JP3-1 for JP3-2 (JP102).
IN/OUTPUT CUT JUMPER
INSERT &
SOLDER
JUMPER
IT-437
MOUNT
POSITION
LEAD WIRE SOLDERING POSITION
BROWN ORANGE YELLOW BLUE
INDIVIDUAL 1
INDIVIDUAL 2
MIX OUTPUT
MIX INPUT
JP1-1 (JP111)
JP2-1 (JP109)
JP3-1 (JP104)
JP3-3 (JP123)
JP4-1 (JP122)
*
2)
JP3-2 (JP102)
T101
T102
T103
T104
RD1-1
RD2-1
RD3-1
RD4-1
RD1-2
RD2-2
RD3-2
RD4-2
RD1-3
RD2-3
RD3-3
RD4-3
RD1-4
RD2-4
RD3-4
RD4-4
RG-59/U
RG-6/U
0.24 inch (6.1 mm)
0.29 inch (7.4 mm)
200 ft
200 to 260 ft
TYPE NUMBER NOMINAL OUTER DIAMETER MAXIMUM LENGTH