MIPRO ma707 User Manual
MA-707
WIRELESS AMPLIFIER
Instruction Manual
ELECTRONICS CO., LTD.
2CE041
Electronics Co., Ltd.
Head office: 814, Pei-Kang Road, Chiayi, 600, Taiwan.
Taipei office: 5, Lane 118, Sung-teh Road, Taipei, 110, Taiwan.
Web-http: //www.mipro.com.tw
E-mail: mipro@mipro.com.tw
Wireless Amplifier
Operating Manual
Thank you for choosing a MIPRO MA-707 series Wireless Portable Public Address
System. Please take the time to read these instructions carefully so that you can
achieve the best performance from the system.
The MA-707 is a portable wireless amplifier system, housed in a heavy duty,
ergonomically designed case. It features a retractable handle and sturdy wheels for
ease of transport. It includes an innovative, dual-slot battery charger for Ni-MH
transmitter batteries to reduce the need to buy batteries for the wireless microphone
transmitters. It will operate from an internal DC rechargeable battery supply or from an
external AC mains supply. The MA-707 may be optioned with a cassette
player/recorder or single/dual VHF or UHF wireless microphone receiver modules. An
optional matching extension speaker is also available for a wider sound dispersion
pattern. The MA-707 may be operated self standing or mounted on an optional tripod
stand.
Front
1
Retractable Handle
2
Fixed Handle
3
Microphone Compartment
4
Speaker
5
Speaker Grille
6
Heat Sink
7
Tripod (Optional)
(Fig.1)
(1) Retractable Handle: Push up from underneath the handle to expose the
retractable extension. Simply push down again for storage and lifting.
(2) Fixed Handle: For balanced, easy hand carrying.
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Wireless Amplifier
Operating Manual
(3) Microphone Storage Compartment : A handy storage compartment for your hand
held microphone transmitters.
(4) Speaker : A powerful, 64 watt, 8-inch full-range speaker.
(5) Speaker Grille : To protect the speaker cone from damage.
(6) Heat Sink : Designed specially for the built-in amplifier, please keep it adequately
ventilated.
(7) Tripod (Optional) : There is a tripod mating socket mounted in the base of the MA-
707 to accommodate a 35mm tripod stand.
Back
Receiver Modules
Charging Status Indicator
Battery Charger
AC Power Switch
A.
Cassette Player
B.
Control Panel
8
9
MIC BATTERY CHARGER
POWER
10
MODE
DIRECTION
DIRECTION
TAPE TONE LINE IN MIC1 LINE INMIC 2 LINE OUT MIC 1 MIC 2
MASTER
OFF VOLUME L H
L H
Battery:12V/4AH
O
T
U
A
-
REC/PLAY
A
REC
PLAY REW F.F.WD ST/EJ PAUSE
Steady: Full Charged
+
Flickering: Charging
VOLUME
CHANNELGROUP
POWERAUDIOSIGNAL
OFF MAX
O
P
T
S
M
E
C
I
C
T
H
A
A
M
N
I
S
M
-
DC 24~32V
-
+
AC 100~240V
VOLUME
CHANNELGROUP
POWERAUDIOSIGNAL
OFF MAX
0 0 00 0 0
Battery:12V/4AH
-
C.
11
DC Power Switch
12
Pitch Control
Extension Speaker Socket
13
DC Input Socket
14
Charging Status Indicator
15
AC Input Socket
16
Battery Cover
-
+
17
18
Wheels
(Fig.2)
(8) Charging Status Indicator (for 7.2V rechargeable transmitter batteries) : Indicates
if a 7.2V rechargeable battery is charging (RED light), or is fully charged
(GREEN light).
(9) Battery Charger : It can hold and charge up to two 7.2V rechargeable transmitter
batteries. It has been designed to prevent incorrect insertion.
(10) AC Power Switch: Insert one end of the plug into socket (16). Insert the other end
into the AC wall socket. Finally, turn on the AC Power switch to activate charging
power.
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Wireless Amplifier
Operating Manual
(11) DC Power Switch : Turns DC power on/off to the unit. The indicator glows when you
turn the power On. Please note that to avoid the over-discharging or stressing of the
built-in battery supply, it is recommended that you charge the unit immediately when
the LED indicator flashes (denoting low battery warning status). Otherwise, the unit
will turn off automatically once a pre determined low charge level is reached (and this
may interrupt your usage of the unit) The regular charging time is approx. 7~8 hours,
while a built in protection circuit will prevent the batteries from over-charging.
(12) Pitch Control: Turn this control clockwise to increase the speed of the cassette, turn it
counter-clockwise to decrease the speed of cassette. This will raise and lower the
pitch of the sound respectively.
(13) Extension Speaker Socket : Allows you to connect an optional MA-707-EXP
extension speaker for increased directional coverage. The MA-707-EXP is rated at
70 watts @ 4 ohms and connects in series to the speaker in the MA-707.
(14) DC Input Socket : Allows you to connect an external 24-32V DC power supply if
required. Please note that the polarity of the central pin in the socket is positive (+).
(15) Charging Status Indicator (For the inbuilt 12V rechargeable batteries): A flashing
red light indicates charging is in progress while a steady red light indicates that
the batteries are fully charged. However, if the indicator remains flashing after
normal charging hours (see (11)), it means the inbuilt rechargeable batteries are
damaged and both damaged inbuilt batteries must be replaced immediately.
(16) AC Input Socket : A built-in switch mode power supply allows for AC power inputs
ranging from 100V to 240V.
(17) Battery Cover : There are two battery covers, one for each battery. In the event that
you ever have to change a battery, please observe the correct polarity and always
keep the battery full-charged. Unless you experience some battery failure, changing
or uninstalling batteries should not be necessary. If in doubt, please contact your
nearest service agent or supplier.
(18) Wheels: Heavy duty and a truly user friendly feature.
Functions of the Cassette Player
MODE
DIRECTION
REC/PLAY
A
DIRECTION
REC
The MA-707 may be optioned to include a mechanical cassette player. Operations are as
follow:
O
P
T
S
M
E
C
I
C
T
H
A
A
M
O
T
U
A
-
PLAY REW F.F.WD ST/EJ PAUSE
N
I
S
M
-
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0 0 00 0 0
A1
Counter Reset Button
A2
Clock Counter
11
DC Power Switch
12
Pitch Control
Extension Speaker Socket
13
A3
Pause Button
A4
Stop /Eject Button
A5
Fast Forward Button
A6
Rewind Button
A7
Play Mode Selector
A8
Recording Button
A9
Play Direction Indicator
A10
Direction Change Switch
A11
Auto Reverse Mode Switch
(Fig.3)
Wireless Amplifier
Operating Manual
1. Turn ON the main power switch (11) and then turn ON the cassette player switch
(B2).
2. Select Auto Reverse Mode: Use the Mode Switch (A11) to choose playback mode you
prefer.
a. When the Continuous Playback Mode Indicator (A11) is ON, playback
continues until the STOP button (A4) is pressed. Note: This mode is not supported
while you are recording.
b. When the Two-Side Playback Mode Indicator (A11) is ON, playback
continues on to side B as soon as the end of side A is reached. (The tape stops
automatically once the end of side B is reached.)
3. Play: Insert cassette into cassette deck, press (A7) for playing.
4. Recording: When recording, the Direction Indicator (A9) will come ON. After pressing
the REC Button (A8) (the Play Button (A7) will be pressed automatically), recording
will start immediately. Note that recording is not possible if the erasure prevention tabs
in the cassette tape loaded in the deck have been removed.
5. Stop/Insert/Eject Cassette: Press the STOP button (A4) to stop playing cassette and
press STOP button (A4) again to eject cassette.
6. Quick Search: This feature allows you to use the Fast-Forward Button (A5) or
Rewind Button (A6) to search for a specific section of audio quickly.
7. Pause: Press Pause Button (A3) to pause playing or recording a cassette tape. To
stop pause, press Pause Button (A3) again.
8. Direction Change Switch: To change play direction, flip Direction Change Switch
(A10) upwards.
Control Panel
MASTER
L H
TAPE TONE LINE IN MIC1 LINE INMIC 2 LINE OUT MIC 1 MIC 2
OFF VOLUME L H
B1 B2
B3
B4 B7
B5
B8 B9B6
B10
(Fig.4)
(B1) Master volume control : Adjust the volume of all mixed audio inputs.
(B2) Cassette Player Power Switch and Volume control : It allows you to turn the cassette
player (if installed) on/off and adjust its volume.
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