Inter-m LM-6414 User manual

Operation Manual
Mic Line Mixer
LM-6414
* Rack mount pro ucts in the Western Hemisphere(North America, South America, an the Caribbean)
o not have han les installe ue to customer preference.

MIC LINE MIXER
Welcome
Welcome
A personal welcome to you from the management and employees of Inter-M
All of the co-workers here at Inter-M are e icate to provi ing excellent pro ucts with inherently goo value,
an we are elighte you have purchase one of our pro ucts.
We sincerely trust this pro uct will provi e years of satisfactory service, but if anything is not to your complete
satisfaction, we will en eavor to make things right.
Welcome to Inter-M, an thank you for becoming part of our worl wi e exten e family!
RI K OF ELECTRIC HOCK
DO NOT OPEN
Caution
CAUTION: TO REDUCE THE RI K OF ELECTRIC HOCK.
DO NOT REMOVE COVER (OR BACK).
NO U ER- ERVICEABLE PART IN IDE.
REFER ERVICING TO QUALIFIED ERVICE PER ONNEL.
WaRninG
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
*WARNING FOR YOUR PROTECTION PLEA E READ THE FOLLOWING-WATER AND MOI TURE: 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.
*Do not install this equipment in a confined space such as a book case or similar unit.
*This apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such vases, shall be placed on the apparatus.
*This apparatus shall be connected to a mains socket outlet with a protective earthing connection.
*
It has heed to be easy to disconnect the device. To disconnect the device from power, separate AC input cable from inlet or unplug the AC Cord.
* The socket-outlet shall be installed near the equipment and shall be easily accessible.
Caution
*These servicing instructions are for use by qualified service personnel only. To 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
*This 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. These limits are
designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This 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.
This 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.
This symbol is intended to alert the user to the
presence of important operation and maintenance
(servicing) instructions in the literature accompanying
the appliance.
Caution: To 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.

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LM-6414
Contents
Contents
Unpacking .......................................................................................................................................2
Installation
Environment....................................................................................................................................2
Important Safety Instructions.............................................................................................................2
Features............................................................................................................................................3
Operation ........................................................................................................................................3
Front Panel ......................................................................................................................................4
Rear Panel .......................................................................................................................................7
Applications ....................................................................................................................................9
Block Diagram ..............................................................................................................................10
Specifications ................................................................................................................................11
Service
Proce ures....................................................................................................................................13
Schematic.....................................................................................................................................13
Parts List .......................................................................................................................................13
Warranty .......................................................................................................................................13

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Unpacking
Unpacking
Although your LM-6414 is neither complicate nor ifficult to operate, we recommen you take a few minutes
to rea this brief manual an familiarize yourself with the important information regar ing pro uct features,
setup an operation.
As with most electronic evices, we strongly recommen you retain the original packaging. In the unlikely event
the pro uct must be returne for servicing, the original packaging (or reasonable equivalent) is require .
Installation
Installation
Environment
Never place this pro uct in an environment which coul alter its performance or re uce its service life. Such
environments usually inclu e high levels of heat, ust, moisture, an vibration.
IMPORTANT SAFETY INSTRUCTIONS
1. Rea these instructions.
2. Keep these instructions.
3. Hee all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with ry cloth.
7. Do not block any ventilation openings. Install in accor ance with the manufacturer’s instructions.
8. Do not install near any heat sources such as ra iators, heat registers, stoves, or other apparatus (inclu ing
amplifiers) that pro uce heat.
9. Do not efeat the safety purpose of the polarize or groun ing-type plug. A polarize plug has two bla es
with one wi er than the other. A groun ing type plug has two bla es an a thir groun ing prong. The wi e
bla e or the thir prong are provi e for your safety. If the provi e plug oes not fit into your outlet, consult
an electrician for replacement of the obsolete outlet.
10. Protect the power cor from being walke on or pinche particularly at plugs, convenience receptacles, an
the point where they exit from the apparatus.
11. Only use attachments/accessories specifie by the manufacturer.
12. Use only with the cart, stan , tripo , bracket, or table specifie by the manufacturer, or sol with the apparatus.
When a cart is use , use caution when moving the cart/apparatus combination to avoi injury from tip-over.
13. Unplug this apparatus uring lightning storms or when unuse for long perio s of time.
14. Refer all servicing to qualifie service personnel. Servicing is require when the
apparatus has been amage in any way, such as power-supply cor or plug is
amage , liqui has been spille or objects have fallen into the apparatus, the
apparatus has been expose to rain or moisture, oes not operate normally, or has
been roppe .
S3125A
3125A

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LM-6414
Features
Features
- MULTIPLE INPUTS AND OUTPUTS
Fourteen channel inputs inclu ing six mono an four stereo channels to accommo ate a wi e array of soun
sources inclu ing microphones, instruments an CD players. Four channel outputs plus stereo output for complete
routing flexibility.
- THREE-BAND EQ
Three-ban equalization on all input channels for maximum control of au io mix.
- FULL-FEATURED INPUT CHANNELS
Trim control, peak in icators an constant-level pan controls on each channel.
- INPUT AND OUTPUT MONITORING
PFL function on input channels for convenient hea phone monitoring, plus switches for selectable output
monitoring.
- LED OUTPUT DISPLAY
Output isplay is switchable between four output busses, stereo bus, PFL or monitor level.
- ON-BOARD PHANTOM POWER
Built-in +48VDC phantom power for con enser microphones
- AC/DC OPERATION
Operates on AC or DC power for true portability.
- ACCESSORIES
One etachable AC power cor is provi e for use with this pro uct.
Operation
Operation
Make certain that speakers an input sources are properly connecte before switching on.
Keep volume levels at minimum gain before switching on.
※NOTE:The system’s operation is elaye by approximately three secon s after pressing the AC Mains power
switch. This is ue to the built-in protection circuitry, esigne to protect speakers an other system components.

MIC LINE MIXER
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Front Panel
Front Panel
1. PHANTOM POWER INDICATOR
This LED in icator lights when phantom power is active at the microphone inputs.
2. PFL INDICATOR LED
This LED lights when any of the Input Channel PFL switches are activate .
3. PHANTOM POWER SWITCH
Pressing this switch activates the +48VDC phantom power supply to all Input Channels, for use with
con enser mics requiring external power.
NOTE: It is safe to connect most mo ern ynamic microphones or line level evices to the channel inputs
when phantom power is activate . However, some ol er ribbon microphones may be amage by phantom
power, an certain unbalance line level evices may malfunction or pro uce an au ible
hum when phantom power is active.
. OUTPUT LEVEL METERS
These multi-segment LED meters isplay the output level as selecte by the Output Monitor Selector Switch (17)(23).
5. CHANNEL OUTPUT ASSIGN SWITCHES
These buttons assign the channel’s input signal to the stereo output bus, or to the Bus 1/2 or Bus 3/4
outputs. Any combination of output busses may be chosen.
6. POWER SWITCH
This switch is use to switch the unit on an off.
When the unit is on, the Power In icator LED (20) is lit.

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LM-6414
7. PEAK INDICATORS
These LED in icators light when the input signal to the associate channel is 3 B below clipping. If the
in icator is lit stea ily, re uce the channel’s Trim level (8) to avoi istortion.
8. CHANNEL TRIM (GAIN) CONTROLS
These knobs control the input level for the associate input channel.
9. EQ AND AUX SEND CONTROLS
These knobs control the equalization for the associate input channel. Three ban s of equalization are
provi e :
Low: 100Hz, ±15 B, Shelving type
Mi : 1kHz, ±15 B, Shelving type
High: 10kHz ±15 B, Shelving type
Below the EQ Controls are Aux 1 an Aux 2 Sen Controls. These knobs control the amount of signal sent to
the Aux busses.
10. PAN CONTROLS
These knobs control the L/R balance position for the associate input channel. Depen ing on which output
sources are selecte with the channel’s Assign Switches (5), the Pan Controls will a just the signal between
Left an Right on the stereo bus, an /or between Bus 1/3 an 2/4 on the Output busses 1-4
If the knob is rotate to the center, the channel’s signal will be sent equally to the stereo Left an Right, Bus
1/2 an Bus 3/4 outputs.
If the knob is rotate fully counter-clockwise (to the left), the channel’s signal will be sent only to the s tereo
Left, Bus 1 an Bus 3 outputs.
If the knob is rotate fully clockwise (to the right), the channel’s signal will be sent only to the stereo Right,
Bus 2 an Bus 4 outputs.
11. PFL SWITCHES
These buttons are use to monitor each channel’s output status via the hea phone jack.
When monitoring the channel’s input signal, PFL position allows you to hear the input at a level unaffecte
by the position of the channel’s Output, FX Sen an Pan settings. AFL position will allow you to hear the
input as it appears in the final mix, with Output, FX Sen an Pan settings as selecte for the channel.
12. CHANNEL OUTPUT LEVELS
These knobs control the output level (the level sent to the output bus) for the associate input channel. Levels
of unuse channels shoul be set to the minimum setting.
13. BUS 1 AND 3 MASTER FADERS
These fa ers a just the output level of signals route to Bus 1 an Bus 3.
1 . BUS 2 AND MASTER FADERS
These fa ers a just the output level of signals route to Bus 2 an Bus 4.
15. STEREO MASTER FADER
This fa er a justs the output level of signals route to the Master Bus.

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16. CUE SWITCHES
These buttons are use to select the associate output bus as active, sen ing signals route to that bus to the
rear-panel output connector.
17. OUTPUT MONITOR SELECTOR
These buttons are use to select the output source for monitoring an hea phones output.
18. HEADPHONE OUTPUT
This is a balance 1/4” stereo jack for connection of hea phones for monitoring the outputs of the busses as
selecte by the Output Monitor Selector (17), or to monitor input channels where PFL switches (11) are
selecte .
19. HEADPHONE GAIN
This knob controls the output level of the hea phone jack.
20. POWER INDICATOR
This LED is lit when the power is switche on to the unit.
21. AUX1/2 RETURN GAIN CONTROLLER
This is a gain controller for the returne signal of AUX1/2 RETURN from external evice such as reverb
processor.
22. AUX1/2 RETURN PAN CONTROLLER
This is a PAN level controller for the returne signal of AUX1/2 RETURN from external evice such as reverb
processor.
23. OUTPUT LEVEL DISPLAY SELECTOR
ON : STEREO L/R, PFL, MON, Level
OFF : BUS 1, 2, 3, 4
2 . AUX1/2 SEND GAIN CONTROLLER
These are gain controller for each input channel au io to sen AUX1/2 SEND for external evice such as
effector.

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LM-6414
Rear Panel
Rear Panel
1. AC INPUT POWER
Connect a stan ar three-pin AC cable to this connector. As shown in the illustration below, if you are
connecting a 110-120VAC power source, remove the fuse over (1) an change the voltage selector tap (2)
from the 230V to 115V setting.
2. AC FUSE HOLDER
This hol er contains the AC overloa protection fuse. If the fuse has blown out, replace it with a fuse of the
same type an rating, as shown below.
If the fuse continues to blow, refer servicing to a qualifie service technician.
3. LINE INPUTS 7-1
Line-level inputs on unbalance 1/4” phone an RCA connectors. These are provi e for input of signal
from line-level sources such as keyboar s, guitar preamps, tuner, cassette or CD players, or line outputs
from an external mixer.
. MIC INPUTS 1-6
Mic-level inputs on balance three-pin XLR connectors.
Voltage 100VAC-120VAC 230VAC-240VAC
Fuse Rating 0.5A/250A 0.3A/250V

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5. STEREO CHANNEL INSERT I/O
These unbalance 1/4” TRS jacks are provi e for input an output of an external processor on the
in ivi ual stereo channel. The Insert signal is unaffecte by the Channel Input levels.
6. STEREO OUTPUTS L/R
Line-level outputs on balance 1/4” phone connectors. These are provi e for output of signal route to the
Stereo L/R output busses.
7. MONITOR OUTPUTS
Line-level outputs on balance 1/4” phone connectors. These are provi e for output of signal route to the
Monitor output busses.
8. BUS OUTPUTS 1-
Line-level outputs on balance 1/4” phone connectors. These are provi e for output of signal route to the
Bus 1-4 output busses.
9. DC INPUT TERMINALS
These terminals are provi e for the connection of DC battery power. Connect a 24VDC battery source to
these terminals. Make certain the re terminal is connecte to the battery’s positive (+) si e, an the black
terminal to the battery’s negative (–) si e.
10. EFX SEND AND RETURN
Line-level inputs on unbalance 1/4” phone connectors. These are provi e for the connection of external
effects processors on the master buss.
11. CHANNEL INSERT I/O
These unbalance 1/4” TRS jacks are provi e for input an output of an external processor on the
in ivi ual channel. The Insert signal is unaffecte by the Channel Input levels.
12. LINE INPUTS 1-6
Line-level inputs on balance 1/4” phone connectors.

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LM-6414
Applications
Applications
TU
COUNTER
RESET
AB
L
R
dB
2
REC MEMO RELAY BLANK DUBBING
NORHIGHPLAY SKIP
06 3
LEVEL
11
PHONES
POWER
ON
OFF
d
DECKBDECKA
MIN MAX
RECLEVEL
MIN MAX
OUTPUTLEVEL
DUBBINGNOR HIGH
ONEPONEP
AMS AMS AMS AMS
;<-:-7,7=*4-+);;-<<-,-+3
PC
6335
SKIP/B RECPAUSE
REC
MUTE
R/PLAYMEMO
MODE
DECKA
AUTOREV ERSE
PLAYLOGIC DECK
DECKB
AUTOREVERSE
RECORDING PLAYLOGIC DECK
TUNER
CDP
DECK

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Block Diagram
Block Diagram

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LM-6414
* Specifications an esign are subject to change without notice.
Specifications
Specifications
LM-6 1
Input Sensitivity/Impe ance Mic Input -60 B/600Ω Balance
Line Input -30 B/47kΩBalance
Maximum Voltage Gin
Mic Bus 1~4, ST Out 84 Bm
Mic to Monitor 74 Bm (PFL: 64 Bm)
Mic to AUX 84 Bm
Line to Bus 1~4, ST Out 54 Bm
Line to Monitor 44 Bm (PFL: 34 Bm)
Line to AUX 44 Bm
Output/Impe ance
Stereo, Bus 1-4 Output +4 B/600ΩBalance
Monitor Output +4 B/600ΩBalance
Hea phone Output 1.0V/33kΩbefore clipping
Frequency
Response (+1/-2 B) 20Hz~30kHz
T.H.D
(20Hz - 20kHz) Less than 0.05%
Equalization
High ±12 B, 10kHz
Mi ±12 B, 1kHz
Low ±12 B, 100Hz
Phantom Power +24VDC
Power Source 100–120VAC or 220–240VAC; 50/60Hz, 24VDC
(Supplie AC mains transformer epen s on country requirements)
Power Consumption 25W
Weight 7.5kg/16.5lb
Dimensions 482(W) x 177(H) x280(D) mm/19(W) x 6.7(H) x 11(D) in

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DIMENSIONS
440
482
280
177

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Service
Service
Procedures
Take steps to insure the problem is not relate to operator error or other pro ucts within the system. Information
provi e in the troubleshooting portion of this manual may help with this process. Once it is certain that the
problem is relate to the pro uct contact your warranty provi er as escribe in the warranty section of this
manual.
Schematic
A Schematic is available by contacting your warranty provi er.
Parts List
A Parts List is available by contacting your warranty provi er.
Warranty
Warranty
Warranty terms an con itions vary by country an may not be the same for all pro ucts. Terms an con itions
of warranty for a given pro uct may be etermine first by locating the appropriate country which the pro uct
was purchase in, then by locating the pro uct type.
To obtain specific warranty information an available service locations contact Inter-M irectly or the
authorize Inter-M Distributor for your specific country or region.

MaDE in KoREa
July 2013 133293
Inter-M, Lt . (Korea) began operations in 1983.
Since then, Inter-M has grown to become one of the largest manufacturers
of professional au io an commercial soun electronics equipment in the worl .
Inter-M has gaine worl wi e recognition for its own bran e pro ucts,
as well as private label manufacturing of electronics sol un er 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 an offices in Korea an China,
an sales an marketing operations locate in Japan, Europe, an the U.S.A.
With more than 850 employees aroun the globe,
Inter-M is well-poise for further growth an expansion.
Inter-M Americas, INC.
13875 ARTESIA BLVD. CERRITOS, CA 90703 USA
TEL : [phone], FAX : [phone]
Home Page : http://www.inter-m.net, E-mail : [email protected]
Inter-M Corporation
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]