ITC T-6231 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.
GRAPHIC EQUALIZER
OPERATION MANUAL
AUDIOAUDIO
PUBLIC ADDRESS SYSTEM
T-6231
T-6231
GRAPHIC EQUALIZER
LOW
CUT
IN/
OUT
+17
+10
0
-10
+12
+6
0
-6
-12
OUT
+12
+6
0
-6
-12
20 25 31.5 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1K 1.6K 2K 2.5K 3.15K 4K 5K 6.3K 8K 10K 12.5K 16K 20K
1.25K
ON
OFF

TABLE OF CONTENTS
2
T-6231
1. SAFETY PRECAUTIONS .......................................................................................3
2. GENERAL DESCRIPTION ....................................................................................5
3. FEATURES ...............................................................................................................5
4. NOMENCLATURE AND FUNCTIONS
4.1 Front Panel ............................................................................................................. 6
4.2 Rear Panel..............................................................................................................7
5. TYPICAL PERFORMANCE.....................................................................................8
6. APPLICATIONS .......................................................................................................9
7.SPECIFICATIONS .................................................................................................. 10
8.DIMENSIONAL DIAGRAM .................................................................................... 11

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 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 dealer.
ITC
ITC
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.
3
1. SAFETY PRECAUTIONS
T-6231

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 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.
ITC
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
T-6231

5
3. FEATURES
2. GENERAL DESCRIPTION
=ldeal for adjusting the overall sound quality of a public address system.
=31 independent adjustable frequency bands.
=XLR and phone jack connectors.
=Allows fine tuning audio signals to suit the environment.
=Built-in high and lower signal adjustor.
=Noise reduction system.
=Excellent frequency response.
=Protection indicator and Power LED indicator.
The T-6231 is a public address graphic equalizer with can provide an ideal public address solution from small
to big places such us mosques, schools, hotels and factories to train stadium and air stations.
T-6231

6
1. SEMAPHORE REGULATE
Output semaphore regulate
2. LOW CUT
High pass filter ON/OFF switch
3. IN/OFF
Equalizer range selection switch
4. OUT
Level pilot lamp
4. NOMENCLATURE AND FUNCTIONS
2
5. EQUALIZER CONTROLS
6. POWER SWITCH
On top of the opening Power
Press the end, power shut down
7. LED INDICATOR
High pass filter LED indicator
8. LED INDICATOR
Equalizer range led indicators
1
4.1 FRONT PANEL
56
T-6231
GRAPHIC EQUALIZER
ON
OFF
OUT
LOW
CUT
IN/
OUT
+12+12
+6+6
-6-6
-12-12
00
2020 2525 31.531.5 4040 5050 6363 8080 100100 125125 160160 200200 250250 315315 400400 500500 630630 800800 1K1K 1.25K1.25K 1.6K1.6K 2K2K 2.5K2.5K 3.15K3.15K 4K4K 5K5K 6.3K6.3K 8K8K 10K10K 12.5K12.5K 16K16K 20K20K
00
+6+6
+12+12
-6-6
-12-12
+17+17
+10+10
00
-10-10
8
3 4
7
T-6231

NOMENCLATURE AND FUCTIONS
7
9. ~220V+/50Hz AC POWER INPUT
10.MONO(OUTPUT)
Output connector
(OUTPUT)
Balanced o
11.BALANCED
utput
(INPUT)
Balanced in
MONO(INPUT)
tput connector
12.BALANCED
put
13.
In
4.2 REAR PANEL
910 11 12 13
T-6231
OUTPUT
MONO
BALANCED
INPUT
MONO
BALANCED
~220V 50Hz
T1AL 250V
RISQUE DE CHOC ELECTRICUS
-NE PAS QUVRIR
SERIAL NO:
PUBLIC ADDRESS SYSTEM
AVIS:
RISK OF ELECTRIC SHOCK
DO NOT OPEN
MADE IN CHINA
T-6231
GRAPHIC EQUALIZER

8
5.TYPICAL PERFORMANCE
5
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
16
12
8
4
0
-4
-8
-12
-16 20 100 1K 10K 50K 20 100 1K 10K 50K
Equalizer Response(+12dB) High-pass Filter Response(+12dB)
Gain (dB) Gain (dB)
Frequency (Hz) Frequency (Hz)
1
0.1
0.010
0.001
0.0005
16
12
8
4
0
-4
-8
-12
-16
Equalizer Response Change +12dB Distortion Characteristics +4dB/600 ohms
Gain (dB) T.H.D (%)
20 100 1K 10K 50K200 1K 5K
Frequency Hz Frequency Hz
T-6231

6. APPLICATIONS
REAR PANEL CONNECTIONS
9
LINK
INPUTS
XLRBAL
1-GND
2-HOT+
3-COLD
1
2
3
12
3
OUTPUTS
INPUTS
AC~ 200V-240V
50~60Hz
T5AL250V
POWER AMPLIFIER
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ELECTRICUS
-NE PAS QUVRIR
AVIS:
PUBLICADDRESS SYSTEM
SERIAL NO:
T5AL250V
~220V 50Hz
AUX2 OUT
AUX1
MIC2 MIC3
MUTE EMC INPUT
MIC2 MIC3
LINE INPUT
OUTPUT
COM 4-16 70V 100V
T5AL250V
RISKOF ELECTRIC SHOCK
DONOT OPEN
RISQUE DE CHOC ELECTRICUS
-NE PAS QUVRIR
AVIS:
PUBLICADDRESS SYSTEM SERIAL NO:
MIXER AMPLIFIER
T-6231
OUTPUT
MONO
BALANCED
INPUT
MONO
BALANCED
~220V 50Hz
T1AL 250V
RISQUE DE CHOC ELECTRICUS
-NE PAS QUVRIR
SERIAL NO:
PUBLIC ADDRESS SYSTEM
AVIS:
RISK OF ELECTRIC SHOCK
DO NOT OPEN
MADE IN CHINA
T-6231 GRAPHIC EQUALIZER

7.SPECIFICATIONS
10
MODEL
GRAPHIC EQUALIZERGRAPHIC EQUALIZER
T-6231
POWER CONSUMPTION
~220V/50Hz
POWER SUPPLY
INPUT
OUTPUT
MAXIMUM INPUT
MAXIMUM OUTPUT
FREQUENCY RESPONSE
DISTORTION
S/N RATIO
EQ GAIN
CENTER FREQUENCY(HZ)
FREQUENCY ALLOWANCE
GAIN ALLOWANCE
HIGH-PASS FILTER
MONITOR OUTPUT
TALLY CONTROL INPUT
REMOTE CONTROL INPUT
DIMENSIONS(MM)
NET WEIGHT
17W
+4dB,20kohms,balanced 3-pin XLR - type female connector
and 1/4 " tip-ring sleeve phone jack
+4dB,10kohms,balanced (Approx,+2.5dB,600 ohms)
3-pin XLR - type female connector and 1/4 " tip-ring sleeve phone jack
+24dB
+24dB(600 ohms load)
20Hz to 20.000Hz, R 0.5dB(EQ IN, 10k ohms load)
0.03% or less (20 20.000Hz,+4dB,600 ohms load)
90dB (20-20.000Hz Audio Band Fiter Weighted)
R 6dB or R12dB Selectable
20,25,31,5,40,50,63,80,100,125,160,200,250,315,400,
500,630,800,1k,1.25k,1.6k,2k,2.5k,3.15k,4k,5k,6.3k,8k,
10k,12.5k,16k,20k
R 5%
R 12dB range:R 1.5dB R 6dB range: R 1.0dB
20 - 400Hz,-12dB / octave
+12dB / 7.5k ohms(Specified Output +4dB)
Make contact at EQ IN (Max,DC24V,0.1A)
EQ Bypass Control (Make contact at EQ ON/OFF)
484(W) X 66(H) X 130(D)mm(including rubber feet)
3.5kg
GROSS WEIGHT 4.5kg
T-6231

100
Over
100
Over
Over
100
8. DIMENSIONAL DIAGRAM
UNIT :mm
6
66
63
337
331
66
70
436
484
UNIT :mm
11
T-6231
GRAPHIC EQUALIZER
ON
OFF
OUT
LOW
CUT
IN/
OUT
+12+12
+6+6
-6-6
-12-12
00
2020 2525 31.531.5 4040 5050 6363 8080 100100 125125 160160 200200 250250 315315 400400 500500 630630 800800 1K1K 1.25K1.25K 1.6K1.6K 2K2K 2.5K2.5K 3.15K3.15K 4K4K 5K5K 6.3K6.3K 8K8K 10K10K 12.5K12.5K 16K16K 20K20K
00
+6+6
+12+12
-6-6
-12-12
+17+17
+10+10
00
-10-10
T-6231
GRAPHIC EQUALIZER
ON
OFF
OUT
LOW
CUT
IN/
OUT
+12+12
+6+6
-6-6
-12-12
00
2020 2525 31.531.5 4040 5050 6363 8080 100100 125125 160160 200200 250250 315315 400400 500500 630630 800800 1K1K 1.25K1.25K 1.6K1.6K 2K2K 2.5K2.5K 3.15K3.15K 4K4K 5K5K 6.3K6.3K 8K8K 10K10K 12.5K12.5K 16K16K 20K20K
00
+6+6
+12+12
-6-6
-12-12
+17+17
+10+10
00
-10-10
T-6231
OUTPUT
MONO
BALANCED
INPUT
MONO
BALANCED
~220V 50Hz
T1AL250V
RISQUE DE CHOC ELECTRICUS
-NE PAS QUVRIR
SERIAL NO:
PUBLIC ADDRESS SYSTEM
AVIS:
RISK OF ELECTRIC SHOCK
DO NOT OPEN
MADE IN CHINA
T-6231
GRAPHIC EQUALIZER

AUDIOAUDIO
Guangzhou ITC Electronic Technology Limited
Http://www.itc-pa.com.cn
PUBLIC ADDRESS SYSTEM
2008-03 Version1.1