ITC T-220BM User manual

Please follow the instructions in this manual to obtain the optimum results from this unit.
We also recommend that you keep this manual handy for future reference.
OPERATION MANUAL
T-220BM
PUBLIC ADDRESS SYSTEM
~230V 50Hz 50W
ON
OFF
POWER
ANT
CH+
AUX VOL
TREBLE VOL
BASS VOL
MIC VOL
MASTER
VOLUME
MIC 1
MIC 2
MIC INPUT
LINE OUT
AUX IN SPK OUT
T-220BM
2.4G MULTIMEDIA ACTIVE LOUDSPEAKER

TABLE OF CONTENTS
1. SAFETY PRECAUTIONS .......................................................................................3
2. GENERAL DESCRIPTION ....................................................................................5
3. FEATURES ....................................................................................................... ...5
4. NOMENCLATURE AND FUNCTIONS
5. ........................................7
6. APPLICATIONS ....................................................................................................8
7. ...............................................................................9
8. .................................................................................. 10
9.
.
......................................................................6
BLUETOOTH TRANSMITTER NAMES AND FUNCTIONS
OPERATING INSTRUCTIONS
DIAGRAM ........................
...............................................................................................11SPECIFICATIONS
2

Be sure to read the instructions in this section carefully before use.
Make sure to observe the instructions in this manual as the conventions of safety symbols and messages
regarded as very important precautions are included.
We also recommend you keep this instruction manual handy for future reference.
Safety Symbol and Message Conventions
Safety symbols and messages described below are used in this manual to prevent bodily injury and property
damage which could result from mishandling. Before operating your product, read this manual first and
understand the safety symbols and messages so you are thoroughly aware of the potential safety
Indicates a potentially hazardous situation which, if mishandled, could
result in death or serious personal injury.
Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.
When Installing the Unit
Do not expose the unit to rain or an environment
where it may be splashed by water or other liquids,
as doing so may result in fire or electric shock.
Use the unit only with the voltage specified on the
unit. Using a voltage higher than that which is
specified may result in fire or electric shock.
Do not cut, kink, otherwise damage nor modify the
power supply cord. In addition, avoid using the
power cord in close proximity to heaters, and never
place heavy objects -- including the unit itself -- on
the power cord, as doing so may result in fire or
electric shock.
Be sure to replace the unit's terminal cover after
connection completion. Because high voltage is
applied to the speaker terminals, never touch these
terminals to avoid electric shock.
Be sure to ground to the safety ground (earth)
terminal to avoid electric shock. Never ground to a
gas pipe as a catastrophic disaster may result.
Avoid installing or mounting the unit in unstable
locations, such as on a rickety table or a slanted
surface. Doing so may result in the unit falling
down, causing personal injury and/or property
damage.
When the Unit is in Use
Should the following irregularity be found during
use, immediately switch off the power, disconnect
the power supply plug from the AC outlet and
contact your nearest ITC dealer. Make no further
attempt to operate the unit in this condition as this
may cause fire or electric shock.
If you detect smoke or a strange smell coming
from the unit.
If water or any metallic object gets into the unit
If the unit falls, or the unit case breaks
If the power supply cord is damaged (exposure of
the core, disconnection, etc.)
If it is malfunctioning (no tone sounds.)
To prevent a fire or electric shock, never open nor
remove the unit case as there are high voltage
components inside the unit. Refer all servicing to
your nearest ITC dealer.
Do not place cups, bowls, or other containers of
liquid or metallic objects on top of the unit. If they
accidentally spill into the unit, this may cause a fire
or electric shock.
Do not insert nor drop metallic objects or
flammable materials in the ventilation slots of the
unit's cover, as this may result in fire or electric
shock.
1. SAFETY PRECAUTIONS
3

An all-pole mains switch with a contact separation of at least 3 mm in each pole shall be incorporated in
the electrical installation of the building.
When Installing the Unit
Never plug in nor remove the power supply plug
with wet hands, as doing so may cause electric
shock.
When unplugging the power supply cord, be sure
to grasp the power supply plug; never pull on the
cord itself. Operating the unit with a damaged
power supply cord may cause a fire or electric
shock.
When moving the unit, be sure to remove its power
supply cord from the wall outlet. Moving the unit
with the power cord connected to the outlet may
cause damage to the power cord, resulting in fire or
electric shock. When removing the power cord, be
sure to hold its plug to pull.
Do not block the ventilation slots in the unit's cover.
Doing so may cause heat to build up inside the unit
and result in fire.
Avoid installing the unit in humid or dusty locations,
in locations exposed to the direct sunlight, near the
heaters, or in locations generating sooty smoke or
steam as doing otherwise may result in fire or
electric shock.
When the Unit is in Use
Do not place heavy objects on the unit as this may
cause it to fall or break which may result in
personal injury and/or property damage. In
addition, the object itself may fall off and cause
injury and/or damage.
Make sure that the volume control is set to
minimum position before power is switched on.
Loud noise produced at high volume when power is
switched on can impair hearing.
Do not operate the unit for an extended period of
time with the sound distorting. This is an indication
of a malfunction, which in turn can cause heat to
generate and result in a fire.
Contact your ITC dealer as to the cleaning. If dust
is allowed to accumulate in the unit over a long
period of time, a fire or damage to the unit may
result.
If dust accumulates on the power supply plug or in
the wall AC outlet, a fire may result. Clean it
periodically. In addition, insert the plug in the wall
outlet securely.
Switch off the power, and unplug the power supply
plug from the AC outlet for safety purposes when
cleaning or leaving the unit unused for 10 days or
more. Doing otherwise may cause a fire or electric
shock.
1. SAFETY PRECAUTIONS
4

3. FEATURES
2.4G multimedia active loudspeaker is with feature of high performance, small size, light weight, excellent voice
output, easy to operate and maintain, elegant, useful, It is ideal choice for sound applications such as school,
conference, household, entertainment and professional performance place.
2. GENERAL DESCRIPTION
1. Transmission frequency: 2.400-2.483MHz. Hi-Fi, good anti-interference.
2. The highest Sampling frequency 64K@16bit x2 in the industry. Equipped with HDCD effect can reach
the best tone quality.
3. Voice delay(<0.5ms).
4. Response frequency 20-20KHz.
5. Automatic enter into match state when it is turned on, and then into accepting state after matching.
6. Distance of The Automatic match from terminal to microphone is less than 1.5m, Time of connection
is less than 1s.
7. Support fixed ID operating mode, point to point or point symmetry groups to realize encryption transmission.
Receiver support automatic sweep frequency function, to avoid interference easily.
8.with 2.4G microphone volume adjustment.
9. with 3.7V/890mA chargeable lithium battery, support continuous working for 48h, 15 days for standby.
10. 2.4G wireless microphone is built in Mp3 player: 2G(can extend IF card(Max.16G).
11.2 line inputs and microphone inputs.
12. 1 line output, to other amplification equipments.
13. Output overload, over voltage and short-circuit protection.
14. Output power is 2x20W with 4 load.
15. Support mute function, when microphone input is 1-1.5MV, there will be no line input.
16. With one master volume, one microphone volume, one line input volume, two treble and bass.
5

INPUT
~230V 50Hz 50W
ON
OFF
POWER
ANT
CH+
AUX VOL
TREBLE VOL
BASS VOL
MIC VOL
MASTER
VOLUME
MIC 1
MIC 2
MIC INPUT
LINE OUT
AUX IN SPK OUT
T-220BM
4. NOMENCLATURE AND FUNCTIONS
1.
Frequency conversion switcher and light indicator of 2.4G wireless module
2. MIC1, MIC2 Input
3. Line input
4. line output
5. Speaker output terminal, with assistant speaker
6. Power switch
7. Receiving antenna of 2.4G wireless module
8. Mic Volume potentiometer
9. line input volume potentiometer
1 0. treble adjustment potentiometer
1 1. bass adjustment potentiometer
1 2. master volume potentiometer
1 3. power light
1 4. AC power input socket
1 5. 5 " woofer speaker (103A)
1 6. speaker input to connect with the output from the main speaker box
6
15 16
1
2
3
4
6
9
10
11
12
14
5
8
7
13

5. BLUETOOTH TRANSMITTER NAMES AND FUNCTIONS
7
1. line input phone jack
2. headset phone jack
3. Hand Strap hole
4. IR Receive
5. channel indicator
6. antenna
7. LCD display
8. Main menu
9. Forward button (FF, page turning)
1 0. play confirmation/ pause button
1 1. data link port
1 2. channel button
1 3. Wireless transmitting on/off button
1 4. power switch
1 5. Back button (backward, turn pages)
1 6. SD card socket
1 7. volume button
1 8. battery cover
1 9. Belt clip

6. APPLICATIONS
REAR PANEL CONNECTIONS
8
~230V 50Hz 50W
ON
OFF
POWER
ANT
CH+
AUX VOL
TREBLE VOL
BASS VOL
MIC VOL
MASTER
VOLUME
MIC 1
MIC 2
MIC INPUT
LINE OUT
AUX IN SPK OUT
T-220BM
2.4G Bluetooth
Transmitter
microphone signal input
line input
line output
sub speaker
power switch
MIC volume control
Line input volume control
treble volume adjustment
Bass volume adjustment
master volume adjustment
Bluetooth antenna
~230V DC power input

7. OPERATING INSTRUCTIONS
1. before power on, make sure whether the local power voltage is corresponding to that indicated on
products. The best power supply is AC 230V, 50Hz. With allowable AC voltage at minimum 200 V,
maximum 242 V. Beyond the voltage range, the machine could not work properly, or even damage.
Before power connection, please make sure if the socket and the power cord is not well, the power
supply plug head and outlet specifications is same. Please turn off the AC power switch before
connect AC power. In order to ensure the safety, please pull the power cord plug out after shutdown.
2. 2.4 G wireless module working status indicator light :
1) standby mode, the blue light slow flash;
2) matching condition, indicator quick flash ;
3) receiving status, the light is off.
3. frequency adjustment: click on the "CH +" button to change the frequency band.
4. sweep frequency matching operation: press "CH +" button for 5 seconds, then the microphone will
automatically enter into the frequency sweep and matching, and then into accepting state.
5. Restore factory Settings: press the transmitter channel button for about 24 seconds till the indicator
light flashing fast, then restart to complete the resetting. (note: This feature with caution)
9

8. DIAGRAM
10
8V
8V
8V
8V
8V
8V
27V
CN
AI
8V8V 5V
5V
8V
8V
27V
Bluetooth
module
Line input
Microphont input
Primary
amplifier
Primary
amplifier
Primary
amplifier
Primary
amplifier
Power
amplifier
Line output
Transformer Rectifier
circuit
Voltage
filtering
External speaker External speaker

9. SPECIFICATIONS
Model T-220BM
Output impedance
Input port
Signal to Noise Ratio
Rated power output
Input sensitivity
Frequency response
70dB
2X20W
LINE IN : 350MV 20MV
MIC: 5MV 0.5MV
LINE OUT: 1V 0.5V
LINE INx2,MICx2,LINE OUTx1
20Hz~20KHz( 3dB)
4
11
THD 1%
Work humidity
Power supply
Net weight
Work temperature
Power consumption
Dimension
6Kg
~ 230V 50Hz
5 ~40
50W
191x280x178mm
20%~80% relative humidity, non condensing
Volume adjustment one master volume, one Line in volume

PUBLIC ADDRESS SYSTEM
VersionV0.1