頁面 6 – MIPRO ACT-717 Single-Channel True Diversity Receiver User Manual

Page 6

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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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13

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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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