Sennheiser RS 220 - User manual

USER'S MANUAL
UHF
BAND
I
WIRELESS MICROPHONE SYSTEM
I
1440-8120-01

WIRELESS MICROPHONE SYSTEM
Table of Contents
1. Introduction .......................................................................... .... ....................... 1
2. Safety .................................................................................................................... 1
3. Environment ...................................................................................................... 1
4. Wireless Note ...........;........................................................................................ 1
5. Product Description .....................................................................................; 2
5.1 Receivers
5.2 Handheld Transmitter Microphone
5.3 Bodypack Transmitter
6. Basic Connections .......................................................................................... 8
7. Setting Up .......................................................................................................... 10
7.1 Connecting the receiver to power
7.2 Connecting the receiver to an audio mixer or an amplifier
7.3 Setting up channel on receiver '
7.4 Inserting batteries into the handheld / bodypack transmitter
7.5 Setting up the handheld transmitter microphone
7.6 Setting up the bodypack transmitter
8. Troubleshooting .............................................................................................. 12
9. System Feature ................................................................................................. 13
10. System Specification ....................................................................................... 13
WIRELESS NOTE .
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WIRELESS i
............................1
FCC Statement
This device complies with part 15 ofthe FCC rules. Operation is subject to the following two
conditions:
(1 )This device may not cause harmful interference and (2) This device must
accept any interference received, including interference that may cause undesired operation
Notice: The changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority
to operate the equipment.
IMPORTANT NOTE: To comply with the FCC RF exposure compliance requirements, no
change to the antenna or the device is permitted. Any change to the antenna or the device
could result in the device exceeding the RF exposure requirements and void user's authority
to operate the device.
1. Introduction
Thank you for purchasing our product. This PLL synthesized wireless microphone system
operates
in UHF band frequency with 16 selectable channels. Please read this
instruction manual carefully before operating the system. This manual covers the function
and operation ofthe wireless microphone system.
2. Safety
~ Do not spill liquid on the appliance and do not drop it on a hard concrete floor.
" Do not place the appliance near heat sources such as radiators, amplifier, oretc.
~ Do not expose it to direct sunlight, extremely dust, excessive mOisture, orvibration.
~ Take out the battery from transmitter, if the appliance has been not used for a longer
period. This will avoid the damage resulting from a defective leaking battery.
3. Environment
~ Do not throw used batteries into a fire or garbage bin with domestic rubbish. Be sure to
dispose of used batteries in accordance with local waste disposal rules.
~ When disposing the equipment, remove the batteries, separate the case, circuit boards,
and cables, and dispose ofall components
in accordance with local waste disposal rules.
4. Wireless Note
~ Before setting up, make sure that the transmitter and receiver are tuned to the same
frequency.
~ Do not use two transmitters in the same frequency.
~ Use good quality batteries to avoid the damage resulting from a defective leaking battery.
~ Turn the MIC/LiNE switch on the rear ofreceiver to adjust receiver output level to match
input level requirements of an audio mixer or amplifier.
~ While checking sound, move the transmitter around the area where you use the system to
look for dead spots. If you find any dead spot, change the receiver position. Ifit does
not work, avoid such places.
~ To avoid interference, do not put the receiver too near metal object and avoid obstructions
between transmitter and receiver.
~ Avoid the interference from TV, radio, other wireless appliances and etc.

2
PRODUCT DESCRIPTION
5. Product Description
5.1 Receivers
The receivers are used with our 16-channel selectable channels transmitters. (The
number
of frequency channels depends on local regulations.) The receiver operates in UHF
band frequency with PLL synthesized control. Powered by 12V DC.
5.1.1 Single Channel, Mini Case
Switching Diversity, Front Fixed Antenna
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3 4 5 5
a
LINE ~IC
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DC INPUT 0
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PRODUCT DESCRIPTION
WIRELESS
5.1.2 Dual Channel, Mini Case
Non Diversity,
Front Fixed Antenna
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RF
3 4 6 4 6
---MIC2---
"--- MIC 1 --- DC INPUT
MIXING
ON OFF
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AF OUT 12V 500mA
LINE MIG CHANNEL sa =
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AFOUT
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I WIRELESS PRODUCT DESCRIPTION '
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5.1.3 Dual Channel
Non Diversity, Fixed Antenna, Dual Channel
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.. ........................................... · .. ·1
PRODUCT DESCRIPTION
WIRELESS I
1.Antenna: Fixed-length UHF antenna permanently mounted either on the front panel.
2.Power Switch: Push the button to powerthe receiver on or off.
3.Power
Indicator: The indicator LED lights when the receiver is ready to operate.
4.AF
Indicator: The indicator glows to indicate,that audio signal has been received.
5.Diversity A. B
Indicator: This LED lights to show that antenna has received the RF
Signal.
6.RF Indicator: This LED lights to indicate that signal is being received.
7.Balanced
Output: 3-pin XLR connector provides balanced low-impedance output.
S.Unbalanced Output: Unbalanced 6.3mm mono jack audio output for connecting to,
e.g., a guitar amplifier.
9.Level Control: Use this rotary control to adjust the receiver output level to match the
input sensitivity
of an audio mixer or an amplifier.
1O.Mic/Line
Switch: Select output ofXLR balanced connector or 6.3<p unbalanced phone
jack. It can be setfor microphone (-20dB)
or line-level (OdB).
11.Channel Selector:'16 different selectable frequencies as below.
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
•••• ••••
• ••
••
•••
12.Squelch Adj: The squelch adjusts the output level to prevent from the external
noise. Setting the squelch too high will reduce the range
of the system. Set the
squelch to minimum before turning the receiver on.
13.Mixing
Switch: When the MIXING switch is in the OFF position, the AF output for
channels 1 and 2 are separated. When the MIXING switch is in the
ON position, the
AF output for channels 1 and 2 are mixed, so that both AF outputs have conbined
signal from both channel 1 and channel 2.
14.DC IN: DC input connector for the supplied AC adapter.

6
WIRELESS
PRODUCT DESCRIPTION
5.2 Handheld Microphone
The handheld microphone operates in UHF band frequency with PLL synthesized control.
UHF 16-channel preprogrammed selectable frequencies to avoid interference. Uni-directional
dynamic or uni-directional condenser capsules with different characters for various choices.
Use 2 x DC1.5VAA size dry or rechargeable batteries·for low operating cost.
5
4
6
3
1. Grille: Protects the microphone capsule and helps reduce breath sounds and wind noise.
The grille for the various microphone capsules differ
in appearance.
2. Low Battery LED: LED indicates ~attery life status. When turn on the power, the LED
will stay on to indicate the batteries have sufficient power. Contrarily,
if the LED fails to
light, the battery is either dead or not positioned correctly, please check the battery status.
Ifthe LED stays flashing, it indicates that the battery will out of power soon and should be
changed.
3. Power: Press for 2 seconds to turn transmitter on or off.
4.
Battery Compartment: Insert two AA dry or rechargeal:!le batteries into the compartment
and make sure that the polarity
of batteries is correct.
5. Channel Selector: Changes transmitter Channel setting.
6. Battery Cover: Unscrew to expose battery compartment and Channel selector.
7. Antenna: Build-in high gain helicalantenna.
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PRODUCT DESCRIPTION
L... __________ • ___ ._. ______ . ___ .. __ ._._. ____ ._._ .. _ .. __ .... _._ .. _ .. __ .. _____ ._ .. _ .. _ .. _. __ ._. ____ ... __ . __ •. __ _
.5.3 Bodypack Transmitter
The bodypack transmitter'operates
in UHF band frequency with PLL synthesized control.
UHF 16-channel preprogrammed selectable frequencies to avoid interference.
Uni-directional condenser cartridges with different characters for various choices. Use 1.5V
x 2
AA size dry or rechargeable batteries for low operating cost.
1. Mini XLR Connector: The included electret lapel microphone is inserted into the connector
on transmitter.
2. On/Off
Switch: Turns transmitterpower on and off.
3. Low Battery LED: LED indicates battery life status. Switching the powerto "ON", the LED
flashing once indicates that the transmitter has sufficient power. Ifthe LED stays on, it
indicates that the battery has insufficient power and should be changed soon. Ifthe status
LED fails to flash, the battery is either dead or not pOsitioned correctly, and you should
correct the positioning or change the battery.
4. Mic/Line Selector: The switch sets the audio input either to microphone level or line level.
5. Antenna: Permanently connected, helical antenna.
6. Channel Selector: Changes transmitter Channel setting.
7. Gain: The rotary control adjusts the input audio level ofthe transmitter. ~he gain adjustment
range is 10dB.
8. Mic Unit: The uni-directional electret condenser unit features the wide frequency response
for warm, rich bass and clear sound.
9. Tie Clip: To clip on the tie or lapel for free-movement.
10.Cable: With mini XLR jack cable to connect the transmitter.
11.Battery Compartment: insert two AA size dry
or rechargeable batteries into the compart-
.ment and make sure that the polarity
of batteries is correct.
7

8
WIRELESS
PRODUCT DESCRIPTION
6. Basic Connections
Connect the receiver output to the audio mixer or amplifier input, using a standard audio
cable with
6.3<p phone plugs. Never use the balanced and unbalanced audio outputs at
the same time! This may cause signal loss
or increased noise.
AUDIO MIXER
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L- ______ -'
LOUDSPEAKER AMPLIFIER LOUDSPEAKER
BASIC CONNECTIONS WIRELESS
6.1 Metal Rackmount
Integrated rack with 2 short connecting plates to install mini receivers in a 19" rack.
2 pieces short L type rack to mount a rack size receiver in a 19" rack.

10
SETTING UP
7. Setting Up
NOTICE: Prior to setting up, please check that the transmitter and receiver are tuned to
the same frequency. Two or more transmitters operating
in the same
frequency can not be used at the same time and area. So for each extra
transmitter, please select a different frequency which can be used
simultaneously
a't local area.
7.1
Connecting the receiver to power
~ Check that the voltage of the supplied AC adapter conforms to the voltage available
(AC110 or 220) in local area. Using the wrong AC adapter may cause irreparable
damage to
the unit.
~ Plug the feeder cable of the supplied AC adapter into DC IN socket on the receiver.
Then plug the AC adapter into a power outlet.
7.2
Connecting the receiver to an audio mixer or an amplifier
In order to make sure the sound quality and avoid distortion, please adjust the MIC/LiNE
switch according to following instructions.
When using a standard audio cable with
XLR or 6.3<p phone plugs to plug into the MIC IN
on the audio mixer o(on the amplifier, please select the MIC/LiNE switch to "MIC"
position, the output level for unbalanced output is about at 100mV.
When using a standard audio cable with XLR or 6.3<p phone plugs to plug into the LINE IN
on the mixer"please select the MIC/LiNE switch to "LINE" position, the output level for
unbalanced output is about at
1V.
Switching Diversity Receiver:
,. When selectthe MIC/LiNE switch to "MIC", please use a standard 6.3<p plug cable to
connect the UNBALANCED connector on the receiver rear panel to an unbalanced
MIC. input on the audio mixer or on the amplifier,
,. When select the MIC/LiNE switch to "MIC", please use a standard 3-pin XLR cable to
connect the BALANCED connector on the receiver rear panel to an balanced MIC.
input on the audio mixer or on the amplifier.
,. When select the MIC/LiNE switch to "LINE", please use a standard 6.3<p plug cable to
connect the UNBALANCED connector on the receiver rear panel to an unbalanced
.line input on the audio mixer
or on the amplifier.
,. When select the MIC/LiNE switch to "LINE", please use a standard 3-pin XLR cable to
connect the BALANCED connector on the receiver rear panel to an Dalanced line
input on the audio mixer or on the amplifier.
Non Diversity Recei"er:
,. When select the MIC/LiNE switch to "MIC", please use a standard 6.3<p plug cable to
connect the UNBALANCED connector on the receiver rear panel to an unbalanced
MIC. input onthe audio mixer or on the amplifier,
~ When select the MIC/LiNE switch to "LINE", please use a standard 6.3<p plug cable to
connect the UNBALANCED connector on the receiver rear panel to an unbalanced
line input on the audio mixer
or on the amplifier.
Never use the balanced and unbalanced audio outputs at the same time! This may
cause signal loss
or increased noise.
SETTING UP WIRELESS
7.3 Setting up channel on receiver
Notice: Do not put two or more transmitters operating nearby when setting up the frequency
channel. Please keep transmitter at least one meter away from receiver.
~ Use the AC adaptorto connect the DC input connector for on the receiver and check the
frequency.
~ The power LED lights when the receiver is ready to operate
,. Adjust dip switch to set the channel
~ If user need to set up a multi-receiver system, please keep your previous
receiver-microphone pair power on. Then go on to next set up procedure.
,. Make sure the receiver channel is same as the transmitter channel
7.4 Inserting batteries into the handheld I bodypack transmitter
~ Push to open or unscrew the battery cover and insert batteries into the battery
compartment conforming to the polarity (+)(-) marks. The transmitter can not work with
incorrectly inserted batteries.
,. Handheld Microphone
Press for 2 seconds to turn on the microphone. The LED will stay on to indicate the
batteries have sufficient power. Contrarily, ifthe LED fails to light, the battery is either
dead or not positioned correctly, please check the battery status. Ifthe LED stays
flashing, it indicates that the battery will out
of power soon and should be changed.
,. Bodypack Transmitter
When push the ON/OFF switch to "ON" to switch the power on, the LED will flash
momentarily.
If the battery has sufficient power, the LED flashes once. Ifthe LED stays
on, it indicates that the battery has insufficient power and should be changed soon. If
the status LED fails to flash, the battery is either dead or not positioned correctly, and
you should correct the positioning or change the battery.
~ Push back or screw the battery cover to click it shut.
7.5
Setting up the handheld transmitter
,. Use the AC adaptorto connect the DC input connector for on the receiver and check the
frequency.
,. Switch the transmitter and hi-fi appliance (amplifier, tape deck etc.) power on.
,. Adjust the channel setting of the transmitter according to receiver's channel setting
~ Test the microphone and adjust the levels on your audio mixer or·amplifier.
11

12
TROUBLE SHOOTING
7.6 Setting up the bodypack transmitter
A. Connecting a microphone
}- Open the battery cover. Push the MIC/L1NE switch to "MIC" and use the supplied screw-
driver to adjust the GAIN at appropriate position.
}- Plug the mini XLR connector of the microphone cable into the audio input connector on
the bodypack transmitter.
}- Switch the transmitter and hi-fi appliance (amplifier, tape deck etc.) power on.
}- Adjust the channel setting of the transmitter according to receiver's channel setting.
}- Test the microphone and adjust the levels on your audio mixer or amplifier.
B. Connecting an instrument
}- Open the battery cover. Push the MIC/L1NE switch to "LINE" and use the supplied
screwdriver to adjust the GAIN at appropriate position.
}- Plug the 6.3<p phone plug of the optional guitar cable to the output jack on the instrument
and the mini XLR into audio input connector on the bodypack transmitter.
}- Switch the transmitter and hi-fi appliance (amplifier, tape deck etc.) power on.
}- Adjust the channel setting of the transmitter according to receiver's channel setting.
}- Play the instrument for testing and adjust the levels on your audio mixer or amplifier.
8. Troubleshooting
Problem
No sound
Solution
}- Check the power supply of the microphone and receiver.
}- Check that the transmitter and receiver are tuned to the same
frequenc~.
}- Check whetherthe hi-fi appliance is switched on and the receiver
output is connected to audio mixer or amplifier input.
". Check whether transmitter is too far away from receiver or
SQUELCH control set too high.
}- Check whether receiver is located too near metal object or there
are obstructions between transmitter and receiver.
Sound interference
>- Check the antenna location.
}- When using 2 or above microphone sets simultaneously, make
sure that the chosen frequencies are not interfered.
". Check whetherthe interference comes from other wireless
microphones,
TV, radio and etc.
Distortion }- Check the receiver volume level is set too high or too low.
}- Check whetherthe interference comes from other wireless
microphones,
TV, radio and etc.
FEATURES & SPECIFICATIONS
WIRELESS
9. System Feature
}- Operating in UHF band frequency with synthesizer controlled.
}- The wireless microphone system with 16 selectable frequencies via Phase Locked Loop (PLL)
circuitry makes it easy to choose non-interfered channels.
}- Diversity with two antennas to ensure the reception quality.
}- Super high sensitivity, extremely low noise transmission and reception.
}- SMT assembled PCB module ensures the quality and stability.
10. System Specification
Receiver
}-
Carrier Frequency Range
}-
Oscillator
}-
Modulation
". Frequency Stability
}-
SIN ratio
}- Image and Spurious Rejection
}-
Receiving Sensitivity
". Selectivity
}-
AF Response
}-
T.H.D.
". IF Frequency
". Dynamic Range
". Tone Signal
}-
Audio Output
>- Power Supply
}- Current Consumption
Handheld/Bodypack Transmitter
". Frequency Range
}-
Modulation
}- RF Power Output
>-
Oscillator
>-
Frequency Stability
>-
Maximum Deviation
>-
Spurious Emission
}-
T.H.D.
". Battery
". Tone Key
}- Mic Unit
y Current Consumption
: UHF 520 -928MHz
: PLL Synthesized
: FM
: ±0.005%
: >94dB, at 48KHz deviation and 60dBIN antenna input
: 80 dB minimum
: At 5 uV over 80dB SIN ratio
:
>50dB
: 50Hz to 15KHz
:
<1% (at 1KHz)
: 1st: 243.95MHz 2nd:10.7MHz
:
>96dB
: 32.768KHz
: Single CH: Balanced and unbalanced audio outputs
Dual CH: Unbalanced audio outputs
: 12V DC
: Single CH: 80mA ± 10mA
Dual CH: 120mA ± 10mA
: UHF 520 -928 MHz
:FM
: 10mW (max.)
: PLL Synthesized
: ± 0.005%
: ± 48KHz with limiting compressor.
: >60 dB below carrier frequency
: <1% (at 1KHz)
: 1. DC 2.4V (1.2V x 2 AA size rechargeable batteries)
2. DC 3V (1.5V x 2AA size batteries)
: 32.768KHz
: Handheld: Uni-directional dynamic unit (U-283)
Uni-directional electret condenser unit
(ECM-1441,ECM-103)
Lavalier: Uni-directional electret condenser unit
: 120mA ± 5mA
DESIGN AND SPECIFICATIONS SUBJECTTO CHANGE WITHOUT NOTICE.
13