MIPRO ACT-51 S User Manual

User Guide

2 CE 3 8 0 B

ACT-51B / ACT-52B

ACT-51 / ACT-52

WIRELESS MICROPHONE SYSTEMS

All rights reserved. Do not copy or forward without prior approvals MIPRO.
Specifications and design subject to change without notice. MN 014/01

! IMPORTANT SAFETY INSTRUCTIONS !

WARNING

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accordance with the
manufacturer's instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or
other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarised or ground plug: A polarised plug
has two blades with one wider than the other. The wide blade is provided for your
safety. When the provided plug does not fit into your outlet, consult an electrician
for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at plug,
convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. Use only with a cart, stand, tripod, bracket, or table specified by the
manufacturer, or sold with the apparatus. When a cart is used, use
caution when moving the cart/apparatus combination to avoid
injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused for
long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way, such as power-supply cord or plug is
damaged, liquid has been spilled or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture, does not operate normally, or has
been dropped.

15. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or
moisture.

16. Apparatus should not be exposed to dripping or splashing and no objects filled with
liquids, should be placed on the apparatus.

17. Use only with the battery which specified by manufacturer.

18. The power supply cord set is to be the main disconnected device.

1. FOR OUTDOOR USE:
To reduce the risk of fire or electric shock, do not expose this apparatus to rain or
moisture.

2. UNDER WET LOCATION:
Apparatus should not be exposed to dripping or splashing and no objects filled with
liquids, such as vases should be placed on the apparatus.

3. SERVICE INSTRUCTIONS:
CAUTION - These servicing instructions are for use by qualified service 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.

This symbol indicates that dangerous voltage constituting a risk of electric
shock is present within this unit.

This symbol indicates that there are important operating and maintenance
instructions in the literature accompanying this unit.

& IC - ID

THIS DEVICE COMPLIES WITH PART15 OF THE FCC RULES AND RSS-123 ISSUE2 OF
CANADA. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS:

(1) This device may not cause interference.

(2) This device must accept any interference, including interference that may cause
undesired operation of the device. This equipment complies with FCC RF radiation
exposure limits set forth for an uncontrolled environment.

Disposal

200 5-08- 13

Dispose of any unusable devices or batteries responsibly and in
accordance with any applicable regulations.

Disposing of used batteries with domestic waste is to be avoided!

Batteries / NiCad cells often contain heavy metals such as cadmium(Cd),
mercury(Hg) and lead(Pb) that makes them unsuitable for disposal with
domestic waste. You may return spent batteries/ accumulators free of
charge to recycling centres or anywhere else batteries/accumulators are
sold.

By doing so, you contribute to the conservation of our environment!

Contents

Diversity Receivers

DIVERSITY RECEIVERS

PRODUCT OVERVIEW

KEY FEATURES

MIPRO'S PROPRIETARY "ACT" FUNCTION & OPERATION

PART NAMES AND FUNCTIONS

RECEIVER INSTALLATION

RECEIVER OPERATING TIPS

RACKMOUNT INSTALLATION FOR RECEIVERS

RECEIVER VFD INTERFACE

RECEIVER PARAMETERS

GENERAL TIPS FOR IMPROVING SYSTEM PERFORMANCE

10

11

17

PRODUCT OVERVIEW

1

2

3

4

6

7

8

The receivers feature a full-color Vacuum Fluorescent Display (VFD) which delivers a
very bright light with exceptionally clear contrast. The VFD has a wide viewing angle
and can be viewed clearly in both indoor and outdoor environments.

The panel displays all pertinent parameters on the same screen, audio professionals can
clearly monitor group, channel, working frequency, RF & audio signal strength, diversity
condition, transmitter battery level, squelch level and indication of interference at a
glance.

The diversity technology ensures optimal reception and freedom of movement, while the
industry's first AutoScan & Automatic Channel Targeting (ACT) channel set-up
technology and dual-squelch "PiloTone & NoiseLock" circuits minimize interference.

Receiver Accessories Included

Antenna ×2

Audio Output Cable ×1

(2-pcs for dual channel

model)

User Guide ×1

Switching Power Supply

with Cable ×1

0

1

Rack-mount kit ×1 set (Rack
Mount Ears ×2, Plugs ×2,
Mounting Screws)
(for single 1/2RU receiver
alone)

Diversity Receivers Diversity Receivers

AF

A

1 234

5

7 8

SQ

MHz

GRP

BAT

6

CHA NNEL 1

KEY FEATURES

! Single-Channel (ACT-51/ACT-51B) and Dual-Channel (ACT-52/ACT-52B) in an EIA-

standard 19” ½-rack unit metal chassis.

! Featuring industry's first full color VFD (Vacuum Florescent Display) on a wireless

receiver.

! Two levels of brightness adjust automatically during performance and can be viewed

clearly from all angles and day/night environments for easy monitoring.

! Diversity technology for optimum reception.

! Programmable multi-function VFD displays all information on the same screen for

easy control and monitoring.

! Fully-electronic push buttons for quick set-up and control.

! Proprietary high performance RF filter and circuitry improve anti-interference

characteristics and increased compatible systems.

! Industry's first ACT function allows rapid and precise transmitter frequency set-up.

! Dual "Pilotone & NoiseLock" circuits minimize interferences.

! Connects to various MIPRO antenna systems.

! Reliable RF, transparent audio performance and an array of leading-edge features

desired by audio professionals for a host of diverse applications.

MIPRO'S PROPRIETARY "ACT" FUNCTION & OPERATION

What is ACT?

“ACT” stands for “Automatic Channel Targeting”. MIPRO developed and patented this
innovative infrared (IR) technology in 2001. MIPRO was the first manufacturer in the
industry to automatically synchronize the frequency selected on the receiver to any ACT
handheld or bodypack transmitter on the same frequency band.

ACT Benefits

! No manual frequency adjusting needed, unlike traditional transmitters.

! Simple, fast and precise frequency set-up without mechanical errors.

! Once the frequency has been set, the data is stored in memory, meaning that

the frequency is set until it is changed by performing the “ACT” function again,
even after powering off.

ACT Set-Up

! Ensure a receiver channel is set up and transmitter batteries are fresh, installed

correctly and powered-on.

! Press the button on the receiver to activate the ACT syncing function.

Once activated, the RF meter cursor and working frequency start blinking.

! Bring ACT handheld or bodypack transmitter within 30cm (12”) of the IR port

on the receiver. The IR port is located between the and buttons
and indicated by a round-shaped red color spot. The frequency will sync
automatically.

! When the frequencies are synchronized successfully between the receiver and

transmitter, the RF meter cursor and working frequency stop blinking and the
indicators in the RF meter are lit.

ACT

ACT

▼

MHz

A

5

7 8

6

AF

GRP

1 234

BAT

SQ

CHANNEL 1

< 3

0

cm

(12

i

n

.)

2

3

or