MIPRO ACT-72HC User Manual

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Page 1

User Guide

2 CE 5 1 1 A

ACT-71HC / ACT-72HC

Rechargeable Handheld Transmitter

Page 2

WARNING

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 PART74 OF THE FCC RULES AND RSS-123 ISSUE 2 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.

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes :

(1) l'appareil ne doit pas produire de brouillage, et

(2) l'utilisateur de l'appareil doit accepter tout brouillage

radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

Disposal

2005 -08-1 3

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!

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Rechargeable Handheld Transmitter

Contents

1 Handheld Controls and Indicators

perating Instructions for Insertion &

3 O

Removing Battery

5 Patented Protection Cover

7 LCD Display Screen

8 How to Setup Transmitter Parameters

13 Battery Status

15 Setting MUTE

16 General Tips for Improving System

Performance

Handheld Controls and Indicators

718.275MHz

FREQU ENCY

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 Capsule Module: Protects detachable

microphone capsule module and internal foam prevents breathing, wind and POP noises.

 Fixed Ring

Battery Compartment: Accommodates one



18500 rechargeable battery.

 Housing: Protects transmitter PCB, battery

compartment and batteries.

 LCD Panel: Displays transmitter parameters.

 Power On/Off Switch: Slides the power switch

to the “ON” position for use or to the “OFF” position when not in use.

 MODE Button: Allows access to available

functions displaying in LCD panel.

 SET Button: Changes parameters.

 ACT Infrared (IR) Port: Receives signals from

receiver to synchronize frequencies.

 MUTE Button: To mute and un-mute the audio

signal temporary.

 Battery Charging Contact: Align contacts

during charging.

Protection Cover: Protects power switch and prevents user has direct access to power switch.

Channel ID Clip: For channel identification (Optional)

Rechargeable Handheld TransmitterRechargeable Handheld Transmitter

Operating instructions for insertion & removing battery

18500 rechargeable lithium battery

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Rechargeable Handheld TransmitterRechargeable Handheld Transmitter

! Rotate and remove microphone grill counter

clock direction.

! Press both sides of Fixed Ring to pull out Fixed

Ring.

! Insert or remove battery accordingly. Insert

battery according to its correct polarity for a proper fit. Wrong polarity will not fit properly.

! Power on the transmitter to check if battery is

fresh and inserted correctly. LCD lit denotes battery inserted correctly.

Note: Transmitter cannot be powered on with

charged battery.

a. Ensure battery is inserted correctly with +

top side.

b. If battery is inserted correctly it could be

due to self battery protection mechanism. Insert the transmitter into the charger to re-charge for 10-20 seconds to wake-up the battery. It should work.

c. If charger cannot be used, reverse the

battery insertion for 10-20 seconds, wake up the battery with correct polarity. It should work.

d. Always power off after each use. Remove

the internal battery if it will not be used for an extended period of time.

Patented Protection Cover

Protection cover's patented design protects accidental access to power switch and its rugged material and snug fit offer protection to both power switch and PCB during accidental drop.

Steps

! Remove protection cover.

! Reverse protection cover.

! Install protection cover to protect accidental

power on/off.

! Mute function is open for easy acsess.

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Rechargeable Handheld TransmitterRechargeable Handheld Transmitter

! When power is off, reverse-installation of

protection cover will turn on the switch automatically. To turn off the system, remove the cover to turn off.

Protection cover must be attached during

operation for full protection.

! Color-coded channel identification clip can be

attached to the bottom of protection cover.

MP-80 Battery Charger (Optional)

MP-80 Charger charges both transmitters and 18500 rechargeable batteries.

LCD Display Screen

 LCD Screen for function display

 AF (audio) MUTE

 Transmitter Battery Meter

GRP CH

01 01

AF MUTE

Transmitters Charging

18500 Charging

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Rechargeable Handheld TransmitterRechargeable Handheld Transmitter

How to Setup Transmitter Parameters

! Remove protection cover to expose MODE

button and SET button.

! MODE Button

Press “MODE” button to access one of the functions below.

! SET Button

Press SET button and LCD wills start flashing. During flashing, press SET button to change parameters.

SET

FREQ UEN CY

718.275MHz

MODE

A B C

GRP CH

01 01

MUTE MODE

MANUAL

FREQUENCY

718.275MHz

RF POWER

RF-LOW

AF GAIN

0 dB

! Group & Channel and Frequency are factory

pre-set, thus, its parameter values are displayed after it is ACT synced. Values cannot be changed.

GRP CH

01 01

FREQUENCY

775.275MHz

( )Group and Channel

( )Frequency

Group and Channel

Frequency

Sensitivity Level

RF Output Power

MUTE Mode

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Rechargeable Handheld TransmitterRechargeable Handheld Transmitter

Setting Input Gain Level

! Selectable AF GAIN between 12dB to -6dB with

3dB step parameter up or down selection.

! Press MODE button until AF GAIN mode

appears.

! Press SET button once to activate function.

! Press SET button to select the desired

sensitivity level.

! Press MODE button to confirm and save the

change.

! The higher the sensitivity level, the lower the

dynamic range of input signals. Meanwhile noise will increase, and the feedback problem will be getting more serious.

! Please make sure sensitivity level is set at

proper level.

AF GAIN

0 dB

AF GAIN

+3 dB

AF GAIN AF GAIN

+12 dB +9 dB

AF GAIN

+6 dB

AF GAIN

+9 dB

Setting RF Output Power

! 2 RF Output Power Levels: RF-HI and RF-LOW.

! Press MODE button until RF POWER mode

appears.

! Press SET button once to activate function.

! Press SET button to select the desired RF output

power.

! Press MODE button to confirm and save the

change, or LCD will stop flashing after 5 seconds and parameter will be saved.

RF POWER

RF-LOW

RF POWER

RF-HI

AF GAIN

+6 dB

AF GAIN

-3 dB

AF GAIN

+3 dB

AF GAIN

-6 dB

AF GAIN

0 dB

AF GAIN

-3 dB

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Rechargeable Handheld TransmitterRechargeable Handheld Transmitter

MUTE MODE

! MUTE MODE: Select from MANUAL and

DISABLE.

! Press MODE button until MUTE MODE appears.

Press SET button once, the LCD screen starts flashing to denote it is ready to accept mode changes. Press SET button to change between MANUAL and DISABLE in cycle. Press MODE button to confirm and save the change, or LCD will stop flashing after 5 seconds and parameter will be saved.

! MUTE button is operable when MUTE MODE is

set in MANUAL mode.

! MUTE button is not operable when MUTE MODE

is set in DISABLE mode.

MUTE MODE

MANUAL

MUTE MODE

DISABLE

Battery Status

! When the battery has less than 10% power

remaining, display will start flashing and batteries must be replaced immediately. If an under voltage condition continues, the LCD will show “OFF...” and the system will shut down.

10 0% 80 % 60 % 40 % 20 % 10%

Power Button

! Turn the power switch to ON position where

transmitter will be activated and LCD will lit up.

! Turn the power switch to OFF position to shut

down the transmitter.

! When the power switch is turned off, the LCD

will show “OFF...” (for Power Off) first and then the system will shut down and no further messages will be displayed.

OFF...

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Rechargeable Handheld TransmitterRechargeable Handheld Transmitter

ERR Message

! When “ERR” appears in the display it indicates

that an operational error has occurred. Please refer to the following codes to diagnose which error you are experiencing.

ERR no01 EEPROM is not being programmed or

internal data error.

ERR no02 For testing only.

ERR no03 The frequency you want to program is

above the switching bandwidth of the transmitter. Use a receiver with an appropriate frequency group. (At this time the microphone is still operating and the frequency remains unchanged. To clear the displayed "ERR" message, switch the handheld transmitter off and on again.)

ERR no04 The frequency you want to program is

below the switching bandwidth of the transmitter. Use a receiver with an appropriate frequency group. (At this time the microphone is still operating and the frequency remains unchanged. To clear the displayed “ERR” message, switch the handheld transmitter off and on again.)

! “Group” & “Channel” : When both the group

and channel numbers are displayed, it means that you are using the pre-programmed frequency of the receiver.

Setting MUTE

! Press MUTE button to enter MUTE mode.

! Under MUTE mode, press MUTE button to exit

MUTE mode.

! MUTE button is operable when MUTE MODE is

set in MANUAL mode.

AF INPUT

MUTE

AF MUTE

AF GAIN

0 dB

A B

GRP CH

01 01

AF MUTE

MUTE MODE

MANUAL

AF MUTE

FREQUENCY

718.275MHz

AF MUTE AF MUTE

RF POWER

RF-LOW

AF MUTE

! “Channel” Only : If “Channel” only is displayed

, it means that you are using a frequency which is not pre-programmed.

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Rechargeable Handheld TransmitterRechargeable Handheld Transmitter

General Tips for Improving System Performance

1. Performer should avoid holding the microphone over

or near the antenna section as this will deteriorate transmission efficiency. Severe deterioration if performer directly covers up the antenna section with both hands.

2. Many performers tend to hold the microphone by the

top grille. Unfortunately, this position seriously degrades both the sound quality and directionality of a microphone. Even the most expensive microphones will have its original sound quality compromised by this method. Grabbing a microphone by the grille will isolate the capsule's acoustic resonance circuit and or change the capsule resonator's frequency. This results in an inferior performance in both frequency response and the separation of directionality. In addition, a palm's sound-focusing effect will tend to strengthen resonances in certain frequencies and can cause unwanted echo.

3. A proper technique is required for using directional

microphones because the distance between the microphone and your mouth has a significant impact on sensitivity and performance. There is an inverse relationship between microphone sensitivity and the distance from the mouth to the microphone. Consequently, performers with a ''weaker'' sound level cannot expect to hold the microphone too far away from their mouth and compensate by turning up the amplifier volume to increase the sound level as this can easily cause echo or feedback. In contrast, performers with a ''louder'' sound level should not hold the microphone too close as this can easily result in distortion by causing the amplifier system to be overloaded.

4. Furthermore, a large-diaphragm directional microphone has a very distinct proximity effect. When the microphone is close to the mouth, the bass response is strengthened as the distance gets closer. Therefore, if a performer's sound is insufficient in bass, they can hold the microphone closer and use the proximity effect to help compensate for the lower bass level. Conversely, if a performer's voice is too heavy in the bass register, increasing the distance between the microphone and their mouth will decrease the proximity effect and reduce the bass response, thus making their voice become clearer and brighter.

5. It is recommended to keep the grille and sponge windscreen clean to avoid any substance blocking the proximity effect of the microphone.

Notes

1. Refer to actual product in the event of product description discrepancy.

2. Frequency range and maximum deviation comply with the regulations of different countries.