Mipro MA-705 Instruction Manual - User Manual

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Instruction Manual

ELECTRONICS CO., LTD.

MA-705

2CE196

Electronics Co., Ltd.

Head office: 814, Pei-Kang Road, Chiayi, 600, Taiwan.

Taipei office: 5, Lane 118, Sung-teh Road,

110, Taiwan.

Web-http: //www.mipro.com.tw

E-mail:

@mipro.com.tw

Taipei,

mipro

- 1 -

(1)

Fixed Carrying Handle: For easy portability.

(2)

Speaker : A powerful 8-inch full-range speaker.

(3)

Speaker Grille : To protect the full-range speaker from damage.

(4)

Tripod Pit: Suits a 35

tripod.

Speaker

Speaker Grille

Fixed Handle

WIRELESS AMPLIFIER

Operating Manual

Front

：

Thank you for choosing a MIPRO MA-705 series Wireless Portable Public Address

System. Please take time to read these instructions carefully so that you can achieve
the best performance from the system.

The MA-705 is a Wireless Portable Public Address System, housed in a heavy

duty, ergonomically designed case. It offers 50 Watts (RMS) high fidelity output and
may be optioned with a wired microphone, up to two wireless microphones, and a CD.
The MA705 is conveniently powered by both AC and DC (rechargeable batteries)
power supplies. Applying the most advanced design techniques to each function of
MA-705 makes it the hottest wireless PA system on the market. The combination of
powerful, high fidelity sound in a flexible, lightweight package makes it perfect for
schools, places of worship, corporate meetings, exhibitions, aerobic classes, and other
small to mid size gatherings where PA systems are required.

Tripod Pit

1. PARTS NAMES AND FUNCTIONS

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Back

：

Operating Manual

Anti-Shock CD Player

DC Power Switch

B. Receiver Modules

A. Control Panel

Heat Sink

AC Input Socket

Battery Cover

(5)

CD Player: Featuring an anti-shock mechanism.

Please refer to the instruction

manual for CD player that is included in the package.

(6)

DC Power Switch: Turns DC power on/off of the unit. The indicator glows when you
turn the power on. Please note that to avoid over-discharging or stressing built-in
batteries, it is recommended that you charge the unit immediately the LED indicator
flashes (indicating a low battery warning status). Otherwise, the unit will turn off
automatically at a preset, low DC power limit. Normal charging time is approximately
six hours and a built in protection circuit will prevent over-charging.

(7)

Heat Sink: Designed specially to cool the built-in amplifier, please keep it adequately
ventilated.

(8)

AC Input Socket: A built-in switch-mode power supply accepts for AC power inputs
ranging from 100V to 240V.

(9)

Battery Cover : To protect the built-in batteries and power supply. If you need to
change the batteries, please observe the correct polarity and always keep the
battery full-charged.

Unless you experience a battery failure, changing or

uninstalling batteries should not be necessary. If in doubt, please contact your
nearest service agent or supplier.

WIRELESS AMPLIFIER

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Operating Manual

A. Control Panel

(Fig.1)

(A1) Tone Control : Turn counterclockwise to increase bass or turn clockwise to

increase treble. Set at 12 o'clock for a flat response.

(A2) Master Volume Control : Simultaneously adjusts the volume of all mixed audio

inputs.

(A3) LINE IN Volume Control: Controls the volume of the Line Socket (A6).

(A4) Mic In Volume Control : Control the volume of the wired microphone (A7).

(A5) Line Out Socket : Stereo line level audio output.

(A6) Line In Socket : Allows you use an external device with an unbalanced audio

output as an input to the MA-705.

(A7) Wired Microphone Input Socket (XLR Balanced/Phone Jack Unbalanced) : Allows

you to connect a wired microphone with either a balanced XLR or unbalanced
phone jack connector.

(A8) Extension Speaker Socket : Connects to an 8 Ohm/50W speaker.

(A9) Charging Indicator: The charging indicator flashes when the system is charging.

Flashing stops when the batteries are fully charged.

WIRELESS AMPLIFIER

SCAN

SENSITIVITY

NOISE

CHANNEL

ACT

VOLUME

B. Operating a Wireless Microphone Receiver Module

(B1) Receiver Power Switch/Volume Control : Turns on/off of receiver module. After

power on, AF LED will flash. Turns knob clockwise to turn up volume.

(B2) Audio Signal Level Indicator: Indicate the audio signal level.
(B3) Sensitivity Adjuster: To adjust receiver sensitivity that ensures no noise output if

receiver is not receiving signals from transmitters.

(B4) ACT Button: To setup microphone frequency to match receiver frequency.

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3. Change channel when:

(a) When multiple channels are utilized do not change channel to avoid exiting

channel interference.

(b) When numeric knob reaches "_" it indicates an empty channel. Proceed until

a numeric number appears.

4. Caution while changing channels:

(a) Existing channel is being interfered or channel is malfunction.

(b) Select channel for multiple non-interference usage.

(a) This system incorporates advanced PLL synthesized oscillator design.

Preprogrammed with 16 switchable frequencies. Allow the user to freely select
any of the preprogrammed frequencies.

1. Functions:

(B5) Scan Button: Press once to select receiving channel and autoscan the whole

bandwidth to avoid interference channel.

(B6) Channel Indicator: To display system's receiving channel.
(B7) Noise Indicator: To display if the system is under interference.
(B8) RF Signal Level Indicator: Indicate the RF signal strength received.

Operating Manual

WIRELESS AMPLIFIER

C. SWITCHABLE CHANNELS FUNCTIONS

How To Select a Frequency:

(a) Auto Scanning Frequency Set-up: Holding down the SCAN button (B5) for 1

second. Release the button when numeric LED (B6) flashes. It will flash a total
of 6 times. To activate the AutoScan function, press the SCAN button once
within these 6 times. An open frequency will automatically be scanned and
saved/locked. *Note AutoScan function works only during numeric LED
flashing and within 6 times.

SCAN

SENSITIVITY

NOISE

CHANNEL

ACT

VOLUME

SCAN

SENSITIVITY

NOISE

CHANNEL

ACT

VOLUME

SCAN

SENSITIVITY

NOISE

CHANNEL

ACT

VOLUME

SCAN

SENSITIVITY

NOISE

CHANNEL

ACT

VOLUME

SCAN

SENSITIVITY

NOISE

CHANNEL

ACT

VOLUME

SCAN

SENSITIVITY

NOISE

CHANNEL

ACT

VOLUME

SCAN

SENSITIVITY

NOISE

CHANNEL

ACT

VOLUME

SCAN

SENSITIVITY

NOISE

CHANNEL

ACT

VOLUME

When done it will auto saved/locked.

LED displayflashes.

Press and hold "SCAN"button
for 1 second.

Press "SCAN" button again andrelease
will auto scan for an open frequency.

(b) Manual Frequency Set-up: Holding down the SCAN button (B5) for 1 second.

Release the button when numeric LED (B6) flashes. It will flash a total of 6
times. To select any of the 16 frequencies in orderly format, press the SCAN
button and hold until the desired frequency is selected. This frequency will
automatically be saved/locked.

Press "SCAN" button and hold,
frequency will change every two f lashes.

When done it will auto saved/locked.

LED displayflashes.

Press and hold "SCAN"button

for 1 second.

Operating Manual

WIRELESS AMPLIFIER

Up to two receiver modules may be installed in a MA-705.

Each receiver module is equipped with "PILOTONE" and the latest "NOISE
LOCK" dual-squelch circuit to eliminate random noise.

Unscrew the two screws from the filler panel and remove the filler panel. Insert
the receiver module into the empty slot and push it carefully into it's mating
connector. Use the screws removed previously to secure the receiver module in
to position.

E. Installing a Wireless Microphone Receiver Module :

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D. ACT BUTTON

1. Press "ACT" button (3) on the front panel of receiver once and the system is

ready for "ACT" function.

2. Position the "ACT" marking of the transmitter about 30cm. Towards the "ACT"

button (3) on the receiver as illustrated in below figure.

3. ACT function will be deactivated automatically once the transmitter frequency is

locked on.

ACT

Operating Manual

3. REPLACING BATTERIES

Remove the screws and take off the battery cover (as shown in fig. 2-1)

Gently remove the existing batteries (as shown in fig. 2-2)

Slide the new batteries in to the battery compartment by aligning the battery
springs, taking care to ensure the correct polarity and terminal contact (as shown
in fig. 2-3)

Replace the battery cover and screws (as shown in fig. 2-4)

(fig. 2-1)

(fig. 2-2)

(fig. 2-3)

(fig. 2-4)

WIRELESS AMPLIFIER

2. INSTALLING ACD PLAYER :

Remove the cover plate (as shown in fig. 3-1)

Connect the linking wire to the CD player's connecting socket (as shown in fig.
3-2)

Gently push the CD player in to position and tighten accordingly (as shown in fig.
3-3)

(fig. 3-1)

(fig. 3-2)

(fig. 3-3)

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- 7 -

Operating Manual

4. HELPFUL TIPS :

Please make sure the inbuilt rechargeable batteries are fully charged before and
after use. A characteristic of rechargeable batteries is that they will self-
discharging gradually over a period of time. Therefore, if the system will not be
used for a long period of time, please make sure the batteries are fully charged
before storing the MA-705. Warranty DOES NOT apply to over-discharged
batteries, hence, please ensure the batteries are recharged every 3 months.

If you are operating the system from internal DC battery supply, you can expect
up to 5 hours of continuous use from a full charge on well conditioned batteries.
If you choose to operate the system from an external AC power supply, then the
internal battery supply will be charged at the same time.

If the LED indicator on the power switch flashes after turning the unit ON, or
during use from the internal DC supply, you should switch to an AC power
supply immediately by using the AC power cord.

Before turning the unit ON, please set all volume controls to their minimum level.
This prevents any loud "thumps" at power on. Adjust the volume controls only
after the unit is fully powered up.

All audio sources can be amplified simultaneously while output volume of each
audio source can be controlled separately.

During use, you may use the line level audio output to make a recording

Please refer to the operating instructions for the wireless microphone for more
details on its use.

MA-705 combines both a high efficient speaker and a super cardioid wireless
microphone for a clear and powerful output. So, NEVER place a microphone
right in front of speaker otherwise damaging feedback could occur (both to
operators ears and the system!).

The extension speaker of MA-705 is rated at 50 watts @ 8 ohms. DO NOT short
out the speaker cables, otherwise, unwarranted damage could be done to the
system amplifier.

10.

To ensure optimal performance, the MA-705 can be installed on a stand or
placed on a platform, while microphones should be located beside or behind the
system to avoid feedback.

11.

Charging time for MA-705 is 4 hours. To ensure a long battery life, please
remove AC power plug after the system is fully charged.

12.

A rechargeable battery is an expendable item. Under normal operation, MIPRO
offers one year limited warranty.

13.

If you experience a short operating time when you know that the batteries are
fully charged, it is often a sign of aging batteries. Both rechargeable batteries
must be replaced (as a pair) at your earliest convenience.

WIRELESS AMPLIFIER

- 8 -

Operating Manual

5. SPECIFICATIONS :

Specifications

Item

1. Max. Power Output

2. T. H. D.

3. Frequency Response

4. Speaker

6. Wireless Microphone

7. Antenna

8. CD Player

9. Audio Input

5. Receiver Module

10. Power Supply

11. Charging Time

12. Dimension

13. Weight

14. Exterior Color

Please Note:

50 Watts (RMS) in to a 8

Load

< 0.1 %

50Hz ~ 18 Khz

3 dB

Built-in 8 Inch Full-range Speaker.

400 285 225mm

8.8 Kg

Black

Four Hours (Automatic Charging Management)

Balanced/Unbalanced Mic In Jacks and Line In Jacks.

Optional

Integrated

Up to 2 optional UHF or VHF receiver modules may be fitted
to a MA-705. Please consult with your local supplier for
frequencies

Suitable to use with MIPRO's hand held transmitter, or bodypack
transmitter fitting with lavaliere or headworn microphones

Not all models are available in all markets and specific

model configurations may vary from market to market. Please
consult with your local supplier for detail of the various
models/configurations available in your market.

The suitability of wireless microphone frequencies may

vary from location to location. Please consult with your
supplier for advice about frequencies suitable in your area. No
responsibility is taken by Mipro for interference caused to/by
any wireless microphone frequency transmission/reception
under any circumstance.

Caution:

type.

Danger of explosion if battery is incorrectly replaced.

Replace only with the same or equivalent

WIRELESS AMPLIFIER

Built-in two 12 Volt 2.7 A Rechargeable Batteries and
90V ~ 264V Switching Power Supply.

Operating Manual

- 9 -

1. PARTS NAMES AND FUNCTIONS

HANDHELD WIRELESS MICROPHONE

(Fig.1)

1. Grille: Protects cartridge, prevents "POP" noise and prevents microphone from

rolling with polygonal shape.

2. Color Ring: For frequency differentiation.

3. Battery Status Indicator: Indicates power on / off and the battery status. When the

power switch is turned ON, the red LEDs indicator flashes briefly, indicating normal
battery status. If no flash occurs, it has either no battery or the battery is discharged
or installed incorrectly. If after power on the indicator stays lighted, it warns that the
battery is weak and should be replaced.

4. Power On-off Switch: Slide the switch for power " ON " or " OFF ".

5. Housing: Upper portion to be connected to capsule module and battery. Internally, it

holds transmitter PCB.

6. Battery Compartment: Designed to accommodate one 9 Volt battery.

7. Battery Cap: Covers battery in the battery compartment.

8. Anti-roll Ring: For frequency differentiation.

9. ACT Signal Receptor: Receiving ACT signal and adjusting frequency automatically.

3 4

(Fig.2)

1. Unscrew battery cap in a counter-clockwise direction (7).

2. Insert a 9V battery into the battery compartment according to the correct polarity as

shown in Fig.2. The moment the battery touches the terminals, the indicator will flash
briefly (7). This means the polarity is correct. However, if no flash occurs, this
indicates wrong insertion or that the battery is dead. Please re-insert the battery
according to its correct polarity or exchange it for a fresh battery.

HANDHELD WIRELESS MICROPHONE

Operating Manual

- 10 -

2. BATTERY INSERTION

3. OPERATING INSTRUCTIONS

When microphone is switched on:
At the moment of the power is switched on, the indicator will flash briefly indicating
normal operation.

When microphone is switched on:

When the power is switched on, the indicator will flash briefly indicating normal

operation.

During Usage:

The AF LED indicator on the receiver will illuminate according to the audio signal

strength from the microphone.

When the microphone is not in use:

Make sure that you turn off the microphone after use to extend the battery life. Remove

the battery from the battery compartment if microphone is not to be used again for
some time. If a rechargeable battery was used, take it out and recharge it.

Under normal operation, when receiver and transmitter are paired together to set

frequency, microphone indicator (3) will remain off after ACT setup the frequency.
However, if indicator (3) is flashing, it means receiver and transmitter are not in the
same frequency band. Please check the stickers on transmitter and receiver to observe
if they are sharing the same frequency bands.

4. CAUTIONS

Operating Manual

1. PARTS NAMES AND FUNCTIONS

(

)

Fig. 1

1. AF Input Jack: Connects to either lavaliere or headset microphone. (See 5 ways of

connection on AF Input Connections)

2. Power Switch: Switch to ON position for operation. Switch to OFF position when not

in use.

3. Battery Status Indicator: Indicates the power on / off and battery status.

(a) When power switch is turned on: The LED indicator flashes briefly, indicating
normal battery status.
(b) When RED light illuminates at either power on or during usage: The battery level
is low, therefore, a new battery replacement is thus necessary.

4. Transmitting Antenna: 1/ 4

transmitting antenna.

5. Transmitter Housing: Packages the PCB and battery.

6. ACT Signal Receptor: Receiving ACT signal and adjusting frequency automatically.

7. Gain Control: Adjusts the desirous input gain.

8. GT/MT Level Select Switch: Switch GT position for electric guitar usage and "Line

In". Gain Control is irrelevant for "GT". Switch to "MT" for condenser microphone
or wired microphone. Gain Control works in "MT" for input sensitivity adjusting.

- 11 -

BODYPACK TRANSMITTER

A C T

- 12 -

Operating Manual

9. Battery Compartment and Cover: Accommodates one 9 Volt battery.

10.Detachable Belt Clip: Allows 360 degrees rotating to suit transmitting angles. To

detach simply use a screwdriver at a 45 degree angle to unfasten. see diagram.

1. To adjust GT/MT Switch (8), and Gain Control (7), simply push down both snap

locks on the sides of battery cover and flip it backwards to expose the adjustment
panel.

2. Before power on, ascertain if same channel was set up for both receiver and

microphone. If not adjust to same channel accordingly.

3. The LED indicator flashes briefly when power on indicating normal battery status. If

no flash occurs it has either no battery, the battery is drained or installed incorrectly.
Change accordingly.

4. Plug the microphone connector into the input jack (1) and tighten the connector

screw by clockwise direction as shown in (Fig. 2).

2. OPERATING INSTRUCTIONS

(Fig.2)

BODYPACK TRANSMITTER

Lavalier

Headset

Please aim of the
fillister
and insert the
connector

Capsule Connector

Operating Manual

- 13 -

3. AF 4-PIN INPUT CONNECTION METHOD

(1) 2-Wire Electret Condenser Microphone Capsule

(2) 3-Wire Electret Condenser Microphone Capsule

(3) Dynamic Microphone

(4) Electric Guitar

(5) Line-in (Impedance 8K

ATT. 10dB)

AUDIO

SHIELD

AUDIO

BIAS

AUDIO

SHIELD

AUDIO

SHIELD

AUDIO

BODYPACK TRANSMITTER

-14 -

Operating Manual

4. BATTERY INSTALLATION

1. Pushing down both snap-locks on the sides of battery cover to open battery cover.

(Fig. 3).

2. Insert a 9V battery into the battery compartment observing the correct polarity as

shown in Fig. 4). Then push up to close the battery compartment as shown in Fig.
4).

(Fig.3)

(Fig.4)

PS: When the microphone is not in use:

Make sure the power to the microphone is switched off. If the microphone will not
be used for some time, please remove the batteries from the battery compartment to
avoid battery leakage and damaged battery springs and circuitry.

BODYPACK TRANSMITTER