JB Systems MR-SU9 User manual

WIRELESS
MICROPHONE
SYSTEM
USER S MANUAL
BAND

WIRELESS MICROPHONE SYSTEM
1. Introduction
...
1
2. Safety
1
3. Environment
...
1
4. WirelessTop Ten
....
1
5. Product Description .. ...
5.1 Receiver
5.2 HandheldMicrophone
5.3 Bodypack Transmitter
2
6. Basic Connections ... ... ..
7
7. Setting Up ....
7.1 Connecting the receiver to a mixer or an amplifier
7.2 Connecting the receiver to power
7.3 Insertingbatteries into the handheld / bodypack transmitter
7.4 Settingup the handheld transmitter
7.5 Settingup the bodypack transmitter
8
8. Trouble-shooting .. ...
9
9. System Feature ....
10
10. System Specification .. .
10
Table of Contents

WIRELESS WIRELESS NOTE
1
Wireless Microphone
FCC Statement
This device complies with part 15of theFCC rules. Operation is subject tothe following two
conditions: (1)This devicemay not cause harmful interferenceand (2) This devicemust accept
any interference received, including interferencethat maycause undesired operation
Notice: The changes ormodifications not expressly approved by theparty responsible for
compliance could voidthe user’s authority tooperate the equipment.
IMPORTANTNOTE: Tocomply with the FCC RF exposure compliance requirements, no
change tothe antennaor the device ispermitted. Anychangetothe antennaor the device
could result inthe device exceeding the RFexposure requirements and void user’sauthority to
operate the device.
1. Introduction
Thank you for purchasing our product. This wireless microphone system operates in UHF
band frequency with synthesizer controlled. Eachsystem with 15 or 16 selectable frequencies
via PhaseLocked Loop (PLL) circuitry makes it easy to choosenon-interfered channels.
Pleaseread this instruction manual carefully before operating thesystem.This manual covers
the functionand operationof the wireless microphone system.
2. Safety
ØDo not spillliquidon theapplianceand do not drop it on ahard concrete floor.
ØDo not place the appliance near heat sources such as radiators, amplifier, oretc. Donot
expose it todirect sunlight, extremely dust, excessive moisture, or vibration.
Ø
Takeout the battery from transmitter, if the appliance has beennot used fora longer period.
This will avoid the damage resulting from a defective leakingbattery
3. Environment
ØDo not throwused batteries into afire or garbage bin with domestic rubbish. Be sure to
disposeof usedbatteries inaccordance with local waste disposal rules.
ØWhen disposing the equipment, remove the batteries, separatethe case, circuit boards,
and cables, and dispose of all components inaccordancewith local waste disposal rules.
4. Wireless Note
ØBefore setting up, make sure that the transmitter and receiver are tuned to the same
frequency.
ØDo not use two transmitters inthe same frequency.
ØUse good quality batteries toavoid the damage resulting fromadefective leakingbattery.
ØTurn thevolume controlon thereceiver to adjust receiver output level to match input level
requirements of amixer or amplifier.
ØIf undesirable noise occurs, adjust the antenna or SQUELCH controlon receiver in
clockwise to suppress it. The higher squelchcontrol, the lower the sensitivityof the
receiver and decreasetheservice area of thesystem.
ØTo avoid interference, do not put the receiver toonear metal object and avoid obstructions
between transmitter and receiver.
ØAvoid theinterference fromTV, radio, otherwireless appliances and etc.

12V300mA
SQUELCHUNBALANCED
AUDIOOUTPUT
BALANCED
DC ONLY
DIVERSITY
RF LEVEL
POWER
ON
VOLUME
MIN MAX
12V500mA
AUDIOOUTPUT
BALANCED
SQUELCHUNBALANCED
DC ONLY
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WIRELESS PRODUCT DESCRIPTION
5. Product Description
5.1 Receiver
The stationary receivers are used with all our 16-channel selectabletransmitters. Thereceiver
operates inUHF band frequency with PLL synthesized control.Powered by 12V DC.
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Wireless Microphone
Single Channel, Diversity
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Single Channel, Non-Diversity
Dual Channel, Non-Diversity
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14
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13
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RF SIGNAL
POWER AF DIVERSITY
RF SIGNAL MIN
VOLUME
MAX
MIN
VOLUME
MAX
AF
MAXMAX
DIVERSITY
VOLUME
MIN
VOLUME
MIN
CH
1
CH
2
CH
3
CH
4
CH
5
CH
6
CH
7
CH
8
CH
9
CH
10
CH
11
CH
12
CH
13
CH
14
CH
15
CH
16
1.
Power:
Power on pushbutton switch.
2. Channel Selector: 15or 16 different selectable frequencies as below.
3. Power Indicator: Theindicator LED lights when the receiver is ready to operate.
4. AF Indicator: Theindicator glows to indicatethat audio signalhas been received.
5. RF Indicator:This LED lights to indicatethat signal is being received.
6. RF Level Indicators: Five LEDs per RF antenna channelglowto indicateRF signal
strength.Themore LEDs that glow, the stronger the received signal. If noneof these
LEDs glow, no signalis being received.
7. Level Control: This rotary control adjusts thereceiver’s output level from the
microphone to linelevel for matching the input sensitivityof the mixer or amplifier.
8. Antenna: Fixed-length UHF antenna permanently mounted eitheron the front or on
rear panel.
9. Antenna Input Connector: TNC-type connectors provide connection tothesupplied
antennas or to coaxial cable used with an antenna divider, antennaboosters or remote
antennas.
10. Balanced Output: Balanced 3-pin XLR audio output forconnectingto, e.g., a
microphone input on amixing console.
11. UnbalancedOutput: Unbalanced 6.3mm mono jack audio output for connecting to,
e.g., a guitar amplifier.
12. Mixing Switch: When theMIXING switchis intheOFFposition, the XLR output for
channels 1 and 2are separate.When the MIXING switchis inthe ON position, the XLR
output for channels 1and 2 aremixed, so that bothXLR outputs have combined signal
frombothchannel 1 and channel 2.
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Wireless Microphone
WIRELESS PRODUCT DESCRIPTION
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Dual Channel, Diversity
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To mount areceiver ina 19”standard rack by using 2 Ltype longmetal racks (L1).
(L1 is an optionalproduct, so please purchase extra in localshops.)
To combinetwo receivers in a 19”standard rack by using2 short Ltype plastics racks (L2) and
2 metalconnecting plates (C1). (Eachsystem includes a L2 anda C1.)
L1
L2
C1
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Wireless Microphone
WIRELESS PRODUCT DESCRIPTION
13.
SquelchAdj. :
The squelch adjusts the output levelto prevent from the external noise.
Setting thesquelch too highwill reduce therange of the system. Set thesquelch to
minimum beforeturning the receiver on.
14. DC Jack: DC input connector forthe suppliedAC adapter.

WIRELESS PRODUCT DESCRIPTION
5.2 HandheldMicrophone
The handheld microphone operates inUHF band frequency with PLL synthesized control. UHF
16 preprogrammedselectablefrequencies toavoid interference. Uni-directionaldynamic or
uni-directionalcondensercapsules with different characters for various choices. Use1.5V x2
AA size batteries for lowoperating cost.
1. Grille: Protects themicrophone capsule and helps reduce breathsounds and wind noise.
The grille for thevarious microphone capsules differ inappearance.
2. LowBatteryLED: LED indicates battery life status. Switching the power to "ON", the
LED flashing once indicates that the transmitter has sufficient power. If the LED stayed on,
it indicates that thebattery has insufficient power and should be changed soon. If thestatus
LED fails to flash, the battery is either dead or not positioned correctly, and you should
correct thepositioning or change the battery.
3. On/off Switch: Turns transmitterpower on and off.
4. BatteryCompartment: Insert two AAA batteries into the compartment and makesure that
the polarity of batteries is correct.
5. Channel Selector: Changes transmitter Channelsetting.
6. BatteryCover: Push to expose battery compartment and Group/Channel selector.
7. Antenna: Built-in highgain helical antenna.
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Wireless Microphone

WIRELESS PRODUCT DESCRIPTION
5.3 Bodypack Transmitter
The bodypack transmitter operates inUHF band frequency with PLL synthesized control. UHF 16
preprogrammed selectablefrequencies toavoid interference. Uni-directionalcondenser capsules
with different characters forvarious choices. Use1.5V x2 AA size batteries for lowoperating
cost.
1. Mini XLR /3.5
j
connector: Theincluded electret lapelmicrophone is inserted into the
connector on transmitter.
2. On/Off Switch: Turns transmitter power on and off.
3. Low BatteryLED: LED indicates battery life status. Switching the power to "ON", theLED
flashing onceindicates that the transmitter has sufficient power. If the LED stayed on, it
indicates that the battery has insufficient power and shouldbe changed soon. If thestatus
LED fails to flash, the battery is either dead or not positioned correctly, and you shouldcorrect
the positioningor changethe battery.
4. Mic/LineSelector (optional foruse with mini XLR connector) : The switchsets the
audio input either to microphone level or line level.
5. Antenna: Permanently connected, helical antenna.
6. Channel Selector: Changes transmitter Channelsetting.
7. Gain:The rotary controladjusts the sensitivity of the transmitter’s audio to the level of the
connected lapel microphone or instrument.
8. Mic Unit:The uni-directionalelectret condenser unit features the wide frequency response
for warm, richbass andclearsound.
9. Tie Clip:Toclip on the tie or lapel for free-movement.
10. Cable: Withmini XLR jack or 3.5jscrewtype plug cabletoconnect thetransmitter.
11. BatteryCompartment: Insert two AA batteries intothe compartment and makesure that
the polarity of batteries is correct.
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6
Wireless Microphone

12V500mA
AUDIO OUTPUT
BALANCED
UNBALANCED SQUELCH
DC ONLY
AUDIO MIXER
AMPLIFIER
LOUDSPEAKER
LOUDSPEAKER
WIRELESS BASIC CONNECTIONS
6. Basic Connections
Connect the receiver output to the mixer or amplifier input, usinga standard audio cable with
3-pin XLR connectors or6.3jphone plugs. Never usethe balanced and unbalanced audio
outputs at the sametime!This may causesignal loss or increasednoise.
7
Wireless Microphone

MAXMIN
VOLUME
VOLUME
MIN MAX
WIRELESS
SETTING UP
7. Setting Up
NOTICE: Prior tosettingup, check that the transmitter andreceiver are tuned to thesame
frequency.Two or above transmitters operating in thesame frequency cannot be
used at thesame timeand area, so please select thedifferent frequencies which can
be used simultaneously at local area.
7.1 Connectingthe receiverto an audio mixer oran amplifier
8
Wireless Microphone
ØWhen using astandard audio cable with 3-pin XLR connectors or 6.3
j
phone
plugs to plug into the MIC IN onthe audio mixer or on theamplifier, please turn
the VolumeLevel Control on thereceiver to around 1o’clock position, the
output levelfor balanced and unbalanced output is about at 77mV.
ØWhen using astandard audio cable with 3-pin XLR connectors or 6.3jphone
plugs to plug into the LINE IN onthe mixer, please turn the VolumeLevel
Control to around MAX. on the receiver position, the output level for
unbalanced and balanced output is about at 770mV.
.
7.2 Connectingthe receiverto power
ØPoint the antennas upward.
ØCheck that thevoltage of thesupplied ACadapter conforms to the voltage (AC110 or 220)
available in local area. Usingthewrong AC adapter may causeirreparable damagetothe
unit.
ØPlug the feeder cable of the supplied AC adapterintoDC INsocket on the receiver.Then
plug the AC adapter into apower outlet.
7.3 Insertingbatteries intothe handheld microphone / bodypack transmitter
ØPushto openthe battery cover and insert batteries intothe battery compartment conforming to
the polarity (+)(-) marks. Thetransmitter can not work with incorrectly insertedbatteries.
ØWhen push the ON/OFFswitchto “ON”to switch the power on, the LED will flash momentarily.
If the battery has sufficient power, the LEDflashes once.If the LED stayed on, it indicates
that the battery has insufficient power and should be changed soon. If thestatus LED fails to
flash, the battery is eitherdead or not positioned correctly, andyou should correct the
positioningor change thebattery.
ØPushback the battery cover to click it shut.
7.4 Setting up thehandheld microphone transmitter
ØSwitch the receiver power on and check the frequency and volumelevel.
ØSwitch the transmitter andhi-fiappliance (amplifier, tape deck etc.) power on.
Test the microphone and adjust the levels onyour audio mixer or amplifier.
In order tomake sure thesound quality and avoid distortion, please adjust the volume level
according to following instructions.
Never use the balanced andunbalanced audio outputs at thesame time!This may cause
signal loss or increased noise.

WIRELESS SETTING UP
9
Wireless Microphone
7.5 Setting up thebodypack transmitter
A. Connectinga microphone
ØOpen the battery cover.PushtheMIC/LINE switch to “MIC”and use the supplied
screwdriver to adjust the GAIN at appropriate position.
ØPlug the mini XLR connectorend of themicrophone cable into theaudio input connector on
the bodypack transmitter.
ØSwitch the transmitter andhi-fiappliance (amplifier, tape deck etc.) power on.
ØTest the microphone and adjust the levels onyour mixer or amplifier.
B. Connectingan instrument
ØOpen the battery cover.PushtheMIC/LINE switch to “LINE”and use the supplied
screwdriver to adjust the GAIN at appropriate position.
ØPlug the 6.3jphoneplug of theoptional guitar cable totheoutput jack on the instrument and
the mini XLR (3.5jplug) into audio input connector on the bodypack transmitter.
ØSwitch the transmitter andhi-fiappliance (amplifier, tape deck etc.) power on.
ØPlay theinstrument for testingand adjust the levels on your mixer or amplifier.
MIC/LINE switchisan optional functiononlyfor use with mini XLR connector.
NOTICE
1. Before checking sound, move the transmitteraround the area where you use thesystem to
look for dead spots. If you find any dead spot, change thereceiver position.If it does not
work, avoid such places.
2. If undesirable noise occurs, adjust the SQUELCH controlon receiver in clockwise to
suppress it.
The higher squelch control, the lower the sensitivity of the receiver and decreasethe service
area of thesystem.

8. Trouble-shooting
Problem Solution
No sound äCheck the power supply of themicrophone and receiver.
äCheck that the transmitter and receiver are tuned to the
same frequency.
äCheck whether the hi-fiappliance is switched on and the
receiver output is connectedtomixer or amplifierinput.
äCheck whether transmitter is toofar away fromreceiver or
SQUELCH controlset too high.
äCheck whether receiver is located too near metalobject or
there are obstructions between transmitter andreceiver.
Sound interference äCheck the antenna location.
äWhen using 2or above microphone sets simultaneously,
make sure that the chosenfrequencies are not interfered.
äCheck whether the interference comes fromother wireless
microphones, TV, radio andetc.
Distortion äCheck the gaincontrol (Mic Adj.) for bodypack transmitteris
set too highor toolow.
äCheck whether the interference comes fromother wireless
microphones, TV, radio andetc.
WIRELESS TROUBLE SHOOTING

WIRELESS
FEATURES & SPECIFICATIONS
9. System Feature
ØOperating in UHFband frequency with synthesizer controlled.
ØThe wireless microphone system with 16 selectablefrequencies viaPhase Locked Loop
(PLL) circuitry makes it easy to choose non-interfered channels.
ØDiversity with two antennas toensure the reception quality.
ØSuper high sensitivity, extremely low noise transmissionand reception.
ØSMT assembled PCB module ensures thequality andstability.
10. SystemSpecification
Receiver
ØCarrier Frequency Range : UHF band
ØFrequency Stability : ±0.005%
ØS/N ratio : > 94dB, at 48KHz deviationand 60dBmV antenna input
ØMaximum Deviation : ±48KHz
ØImage and Spurious Rejection
: 80 dB minimum
ØReceiving Sensitivity : 8 dB V.
ØSelectivity : > 50dB
ØAF Response : 50Hz to15KHz (±3dB)
ØT.H.D. : < 1% (at 1KHz)
ØAudio Output : Balanced andunbalanced audiooutputs
ØCurrent consumption : 500mA ±10mA
ØPower Supply : 12V DC
ØDimensions : 420(W)x180(D) X45(H) mm
Handheld/Bodypack Transmitter
ØCarrier Frequency Range : UHF band
ØRF Power Output : 10mW (max.)
ØOscillation Mode : PLLsynthesized
ØFrequency Stability : ±0.005%
ØMaximum Deviation : ±48KHz
ØSpurious Emission : More than 60dB belowcarrier frequency
ØT.H.D. : Less than 1% (at 1KHz)
ØMicrophone Capsule : Handheld:uni-directional dynamic or uni-directional electret
condenser unit
Lavalier:uni-directional electret condenser unit
ØOperating voltage : DC1.5V x2 AA size batteries
ØCurrent consumption : 65mA ±5mA
ØDimension(mm) :UF-16A: 56jx263mm;UT-16A:64(W)x97(H)x24(D)
DESIGN AND SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.
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Wireless Microphone