頁面 6 – MIPRO ACT-717 Single-Channel True Diversity Receiver User Manual
Page 6
CH 1
CH 2
CH 3
CH 4
MIXED
REMOTE
ANTENNA A
+8V DC BIAS
ANTENNA B
+8V DC BIAS
OUT
IN
3: COLD -
1: GND
+
2: HOT
3
2
1
LEVEL
This connector can not be connected
to telecommunication networks.
BALANCED OUT
AC INPUT: 100~240V
-6dB
0dB
GND
LIFT
+16dB
RECEIVER INSTALLATION
(Figure 1)
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1. Antenna Installation: Install 2 separate antennas on the antenna sockets ,
on the rear panel. Illustrated in Figure 1.
2. AC Power Operation: Connect the AC power cable to the AC Input Jack , then
plug the other end into an AC outlet having the correct voltage and rating, as shown
in Figure 1.
3. Audio Output Connection:
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!
Level Switch Setting Position: When connecting from the receiver's
unbalanced ¼” output (ACT-717/ACT-717B only) to the "LINE IN" jack of a mixer
or an electric guitar amplifier, switch the Level Switch to the “+16dB” position.
Low sensitivity may occur if switched to the wrong level position; therefore, don't
use the “0dB” or “-6dB” positions as they may not deliver a sufficiently high level
of input. When connecting from a receiver's balanced output to the "MIC-IN" jack
of a mixer, switch the Level Switch to the “0dB” position. Overload distortion
may occur if switched to the wrong level position. There are many different
amplifiers for Karaoke machines in today's market; however, the gain of many of
these amplifier's "MIC IN" is not consistent. Therefore, if distortion is
encountered, please switch the Level Switch to the “-6dB” position.
!
Mixed Output: Balanced output socket (XLR) must connect to the balanced
input socket of the mixer. This output socket generates the mixed output of
Ch.1~Ch.4 and the output sensitivity can be adjusted to “+16dB” or “0dB” or “-
6dB” by the level switch on the right side of the socket. (ACT-727/ACT-727B &
ACT-747/ACT-747B)
!
Unbalanced Output: Using an audio output cable with ¼” “PHONE PLUG” type
connectors, connect one end from the unbalanced output jack of the receiver,
and the other end to the “LINE-IN” input jack of the mixer or guitar amplifier, as
shown in Figure 2. (ACT-717/ACT-717B only)
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True Diversity Receivers
True Diversity Receivers
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RECEIVER OPERATING TIPS
!
Prior to powering on the receiver, ensure all transmitters are turned off and the
mixer's volume control is set to a minimized setting. Red LED power indicator is lit
when powered on.
!
Normally, the RF meter level glows when a transmitter is powered on to indicate the
receiver is ready for operation. Once an audio signal is received from the
transmitter, the AF meter level glows based on signal strength. If the meter or
indicator does not glow or there is no audio output, the system may not be set up
properly. Re-check that the transmitter is turned on and the receiver and
transmitter are on the same frequency (if not, the transmitter will need to be reset
via the ACT function).
!
The microphone output level needs to be adjusted at the mixer. There is no need to
adjust output levels at the receiver itself.
!
The antenna inputs provide 8-volt DC biased and are designed to work with MIPRO
antenna boosters. If the connecting cable is longer than 10 meters (approx. 30'), it
is advisable to install an antenna booster to ensure optimal reception.
!
Antenna dividers and receivers must be from the same frequency band.
(Figure 3)
COLD
-
GND
+
HOT
1
2
3
2
1
3
!
Electric Guitar Output: Using audio output cable with ¼” “phone plug” type
connectors, plug one end into the unbalanced output jack of a receiver
(ACT-717/ACT-717B only), and the other end into the input jack of a guitar
amplifier. Switch the Level Switch to “+16dB” position (the switch will show
“+16dB” on the receiver, but actually puts out “+10dB” on the unbalanced jack).
!
Balanced Output: Using audio output cables with “XLR” or “Cannon” type
connectors, connect one end to the balanced output jacks of the receiver, and
the other end to the “MIC IN” input jack of the mixer or amplifier, as shown in
Figure 1. (The configuration of the 3-pin connector is as shown in Figure 3.)
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(Figure 2)
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