Inter-m SC-6224 User manual

Operation Manual
Speaker Line Checker
SC-6224
*Rack mount products in the Western Hemisphere (North America South America and the Caribbean)
do not have handles installed due to customer preference.

SPEAKER LINE CHECKER
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All of the co-workers here at Inter-M are dedicated to providing excellent products with inherently good value
and we are delighted you have purchased one of our products.
We sincerely trust this product will provide years of satisfactory service but if anything is not to your complete
satisfaction we will endeavor to make things right.
Welcome to Inter-M and thank you for becoming part of our worldwide extended family!
RISK OF ELEC RIC SHOCK
DO NO OPEN
Caution
CAU ION: O REDUCE HE RISK OF ELEC RIC SHOCK.
DO NO REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PAR S INSIDE.
REFER SERVICING O QUALIFIED SERVICE PERSONNEL.
WaRninG
o prevent fire or shock hazard, do not
expose the unit to rain or moisture.
*WARNING FOR YOUR PRO EC ION PLEASE READ HE FOLLOWING-WA ER AND MOIS URE: Unit should not be used near water(e.g.
near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken so than objects do
not fall and liquids are not spilled into the enclosure through openings.
*CLASS 2 WIRING (Adjacent to speaker terminal): he speaker output of this apparatus can exceed 10 Watts and could be a shock injury.
Connection to speakers should be performed by a skilled person.
*Do not install this equipment in a confined space such as a book case or similar unit.
* his apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such vases, shall be placed on the apparatus.
* his apparatus shall be connected to a mains socket outlet with a protective earthing connection.
*
It has heed to be easy to disconnect the device. o disconnect the device from power, separate AC input cable from inlet or unplug the AC Cord.
Caution
* hese servicing instructions are for use by qualified service personnel only. o reduce the risk of electric shock, do not perform any servicing
other than that contained in the operating instructions unless you are qualified to do so.
notE
*his equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. hese limits are
designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. his equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will
be required to correct the interference at his own expense.
his symbol is intended to alert the user to the
presence of uninsulated “dangerous voltage” within
the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to
persons.
his symbol is intended to alert the user to the
presence of important operation and maintenance
(servicing) instructions in the literature accompanying
the appliance.
Caution: o prevent electric shock do not use this (polarized) plug with
an extension cord, receptacle or other outlet unless the blades
can be fully inserted to prevent blade exposure.
Attentions: Pour prévenir les chocs électriques ne pas utiliser cette
fiche polarisée avec un prolongateur, une prise de courant
on une autre sortie de courant, sauf si les lames peuvent
étre insérées à fond sans en laisser aucune partie à
découvert.

SPEAKER LINE CHECKER
1
SC-6224
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Environment....................................................................................................................................2
Important Safety Instructions.............................................................................................................2
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*'896*7..........................................................................................................................................3
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6328'2*0 ....................................................................................................................................5
*'6'2*0 .....................................................................................................................................7
4*6'8.32*8-3)......................................................................................................................9
440.('8.327...............................................................................................................................10
03(/.',6'1 ...........................................................................................................................11
4*(.+.('8.327..............................................................................................................................12
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SPEAKER LINE CHECKER
2SC-6224
278'00'8.32
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Although your SC-6224 is neither complicated nor difficult to operate we recommend you take a few minutes
to read this brief manual and familiarize yourself with the important information regarding product features
setup and operation.
As with most electronic devices we strongly recommend you to retain the original packaging. In the unlikely
event the product must be returned for servicing the original packaging (or reasonable equivalent) is required.
278'00'8.32
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Never place this product in an environment which could alter its performance or reduce its service life. Such
environments usually include high levels of heat dust moisture and vibration.
!! !% !"!
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators heat registers stoves or other apparatus (including
amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide
blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet consult
an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and
the point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus.
When a cart is used use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way such as power-supply cord or plug is
damaged liquid has been spilled or objects have fallen into the apparatus the
apparatus has been exposed to rain or moisture does not operate normally or has
been dropped.
S3125A

SPEAKER LINE CHECKER
3
SC-6224
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SC-6224 is a speaker line checker and it detects the errors by measuring the impedance of speaker line
connected to PA amp. SC-6224 is the system which measures and indicates the status of speaker line (GOOD
SHORT NG OPEN) through LED and buzzer. In case of emergency it inspects the line automatically with time
interval which has been set and notify the operator
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 *88.2,8-*8*788.1*.28*6:'0'2)'9831'8.(8*78
The test time intervals can be set from 5 to 200 minutes by user request.
"7*3+-.,-+6*59*2(<8*787.,2'0
It uses the high frequency test signal when checking out the speaker line so it may be inaudible to listener.
 4*'/*6.14*)'2(*1*'796.2,*66366'2,*7*88.2,
Speaker impedance measuring error range can be set as 10% or 20%.

SPEAKER LINE CHECKER
4SC-6224
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   !!
- Set the equipment numbers for each deciding condition using the rear panel DIP switch.
- If the equipment number is not set-up or is incorrect all Zone Indicator LEDs will blink.
- If the number is already in-use the system will not function properly.
- Please check the equipment number set-up status.
Setting should be as below table and if data number is added to switch which is On it will be
the equipment number.
(Ex: when number 1 and 3 is ON 1 and 4 is added so equipment number will be 5.)
 !! $! !!
1) For the system linked by using RS-485 communication interface it is necessary to set the termination
switch (LOAD/OPEN) on the rear panel to stabilize data transfer.
2) Set the termination switch to LOAD only for the first and last-numbered equipment units.
All others must be set to OPEN.
※CAUTION : Communication error may occur if setting is performed incorrectly.
Pin No.1234
Data 12 48
1 ON
2 ON
3 ON ON
4 ON
Address 5 ON ON
:: : : :
12 ON ON
Equipment 1
S/W : LOAD
IN OUT
Equipment 2
S/W : OPEN
IN OUT
Equipment 3
S/W : OPEN
IN OUT
Equipment 4
S/W : LOAD
IN OUT

SPEAKER LINE CHECKER
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The LED displays any default or normal status of speaker line and connection.
Green LED – speaker impedance in normal range
Red LED – speaker impedance out of normal range
Orange LED – speaker line is Short
Blinking Red LED – speaker line is Open
Channel LED OFF – speaker's not connected.
 "!!
If this button is pushed speaker line impedance of entire 24 channels will be measured and impedance
values of each channel will be save in the memory. After measuring the impedance if speaker is connected
green LED will be on and if not LED will be off. However if speaker is SHORT yellow LED will be on.
 ! ! !!"!!
If this button is pushed test will be performed for connected channels and status of each channel will be
displayed on LED.
 "&&"!!
It is the buzzer ON/OFF button which informs the error of speaker line. Buzzer will be generated if there is
error when checking out the speaker line while button is on. If button is off it will not be generated.
 "!! !"!!
It is automatic test ON/OFF button of speaker line. If button is on it checks out the speaker line
automatically for certain time setting and automatic check will be cleared when is off. On/off operations of
button can be shown as the LED on the button.
123 4 5 6 78
5
SC-6224

SPEAKER LINE CHECKER
6SC-6224
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Depending on positions of volume automatic test time can be adjusted from 5 to 200minutes. Turn the nob
to clockwise then set time will be increased.
 $ $!
It is the power ON/OFF switch.
 $
It is the LED displaying the status of power ON/OFF.

SPEAKER LINE CHECKER
7
SC-6224
*'6'2*0
*'6'2*0
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It is the terminal which connects the speaker line of 24 channels.
 "!!
It is the terminal which connects the amp output of 24 channels.
 !"!"!!
It is R-channel balance audio output terminal.
 $$ !! $!
It sets up the error ranges for speaker line impedance.
- NARROW : 10%
- WIDE : 20%
 "!!
It is the communication terminal to monitor the line check result from PC.
Link in is connected to the previous device and Link out is connected to the next device.
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It is the switch which is set for stable data receiving/transmitting of link in/out.
For details of equipment setting please refer to page 4
※CAUTION : communication error may occur if it is not set correctly.
12345
67 8
Pin No. Functions Pin No. Functions
1 RS-485 Data - A 5 GND
2 RS-485 Data - B 6 RS-485 Data - Y
3 RS-485 Data - Z 7 NA
4 NA 8 NA

SPEAKER LINE CHECKER
8SC-6224
   !! $!
It is the switch which sets up the role of each system if device is expanded and interlocked.
For details of equipment setting please refer to page 4.
 $"!!
It is the terminal which connects the DC power (DC 24V). Caution to polarities when it connects.

SPEAKER LINE CHECKER
9
SC-6224
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"!!!
1. Turn off all powers of devices to be connected.
2. Connect the amp output line to “CHANNEL INPUT” on the rear panel. Caution to polarity (+/-).
3. Connect the speaker line to “CHANNEL OUTPUT” on the rear panel. If connection is completed then turn
the power of other devices.
4. Connect DC-24V to the DC power input of SC-6224 then push the power switch.
!
1. Impedance setup and save for each channel
1) If “Confirm” button on the front side is pushed impedances of speakers connected to speaker lines from
channel 1 to 24 will be measured and default value will be saved. Previously measured default value will
be deleted and new measured value will be saved.
2) LED status will be displayed as follows depending on impedance values has been measured.
- Green LED : speaker is connected normally.
- Orange LED : speaker line is SHORT.
- LED Off : speaker is not connected.
2. Manual Speaker Test
1) If “TEST/START” on the front panel is pushed impedance of speaker can be tested manually. This
function performs the test about the channel which speaker is connected compares with saved
impedance and display the result on the front LED.
- Green LED – speaker impedance in normal range
- Red LED – speaker impedance out of normal range
- Orange LED – speaker line is Short
- Red LED flickering – speaker line is Open
3. Auto Test Mode
1) It is automatic test ON/OFF button of speaker line. If button is on it checks out the speaker line
automatically for certain time setting and displays the result on each channel's LED. Setup the automatic
test mode by pushing “AUTO CHECKER” button on front panel.
2) If LED is on it means the automatic mode is set and check time for automatic mode can be set from 5 to
200 minutes by turning the time adjustment volume on the front panel.
- Green LED – speaker impedance in normal range
- Red LED – speaker impedance out of normal range
- Orange LED – speaker line is Short
- Red LED flickering – speaker line is Open

SPEAKER LINE CHECKER
10 SC-6224
440.('8.327
440.('8.327
PB-6207
PD-6359
BATTERY
(DC 24V)
RME-6108
ECS-6216P
ER-6116
SC-6224
PP-6213
AFD-6218
POWER AMP
POWER AMP
(SPARE)
TP-6231
RM-6024/6012KP
DIRECT BOX
DIB 6000
+
VOL INPUT OUTPUT
POWER
TOPC
MUTE
LEVEL
INPUT
VOL
+
MIC
PRI.
OFF
ON
MAXMIN
LINE
MIC
4063$&
USB 2.0
LINE IN/OUT
DIB-6000
SPEAKER
DC LINE
AC LINE
COMMUNICATION
SIGNAL LINE

SPEAKER LINE CHECKER
11
SC-6224
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DC IN
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DRY CONTACT
ADDRESS
+7<:74
COMM 485

SPEAKER LINE CHECKER
12 SC-6224
4*(.+.('8.327
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
Test Impedance Range 20Ω~3kΩ
Test Duration (per channel) less than 100msec/channel
Test Interval (selectable) 5min ~ 200min
Number of Channels 24 Channel
Operating Temperature -10℃~ +40℃
Power Source DC 24V 200mA
Weight (SET) 4.4Kg/9.7lb
Dimensions (SET) 482(W)×88(H)×280(D)mm/19(W)x3.5(H)x11(D)in
Accessory
LINK IN/OUT Cable UTP Cable (500mm)
* Specifications and design subject to change without notice.

SPEAKER LINE CHECKER
13
SC-6224
※  
440
482
88
280

SPEAKER LINE CHECKER
14 SC-6224

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Take steps to insure the problem is not related to operator error or other products within the system. Information
provided in the troubleshooting portion of this manual may help with this process. Once it is certain that the
problem is related to the product contact your warranty provider as described in the warranty section of this
manual.
(-*1'8.(
A Schematic is available by contacting your warranty provider.
'687.78
A Parts List is available by contacting your warranty provider.
$'66'28<
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Warranty terms and conditions vary by country and may not be the same for all products. Terms and conditions
of warranty for a given product may be determined first by locating the appropriate country which the product
was purchased in then by locating the product type.
To obtain specific warranty information and available service locations contact Inter-M directly or the
authorized Inter-M Distributor for your specific country or region.

NOTE

NOTE

MaDE in KoREa
November 2012 131258
Inter-M Ltd. (Korea) began operations in 1983.
Since then Inter-M has grown to become one of the largest manufacturers
of professional audio and commercial sound electronics equipment in the world.
Inter-M has gained worldwide recognition for its own branded products
as well as private label manufacturing of electronics sold under other names (OEM).
The company is no longer just a Korean company but rather a global company
that is truly international in scope with factories and offices in Korea and China
and sales and marketing operations located in Japan Europe and the U.S.A.
With more than 850 employees around the globe
Inter-M is well-poised for further growth and expansion.
28*61*6.('72(
13875 Artesia Blvd. Cerritos CA 90703 USA
TEL : [phone] FAX : [phone]
Home Page : http://www.inter-m.net E-mail : [email protected]
28*636436'8.32
Seoul OFFICE:653-5 BANGHAK-DONG DOBONG-KU SEOUL KOREA
TEL : [phone]~8 FAX : [phone]
Home Page : http://www.inter-m.com E-mail : [email protected]