Coemar LEDko EXT User manual

EXT Basic

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Please note in the space provided above the relative service information of the model and the retailer from whom
you purchased your LEDko EXT Basic: this information will assist us in providing spare parts, repairs or in answering
any technical enquiries with the utmost speed and accuracy.
WARNING: the security of the fixture is granted only if these instructions are strictly followed; therefore it is
absolutely necessary to keep this manual.
Serial Number:
.......................................................................................................................................................................................
Purchase date:
.......................................................................................................................................................................................
Dealer:
.......................................................................................................................................................................................
Address:
.......................................................................................................................................................................................
Suburb:
.......................................................................................................................................................................................
Country:
.......................................................................................................................................................................................
Phone / Fax:
.......................................................................................................................................................................................
User Manual version 1.0
Edition October 2020
EXT Basic

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Index
1. Packaging and transportation ........................................................................................................Pag. 5
1.1 Packaging ............................................................................................................................................Pag. 5
1.2 Transportation ...................................................................................................................................Pag. 5
2. General information ........................................................................................................................... Pag. 5
2.1 Safety informations ......................................................................................................................... Pag. 5
2.2 Warranty conditions ........................................................................................................................ Pag. 6
2.3 EC norms ........................................................................................................................................... Pag. 6
3. Product specifications ......................................................................................................................Pag. 7
3.1 Technical characteristics .................................................................................................................Pag. 7
3.2 Dimensions ........................................................................................................................................ Pag. 7
3.3 Unit’s main components ................................................................................................................Pag. 8
3.4 Back panel description ...................................................................................................................Pag. 9
4. Installation ............................................................................................................................................Pag. 10
4.1 Mechanical installation .................................................................................................................. Pag. 11
4.2 Safety chain .....................................................................................................................................Pag. 11
4.3 Adjusting unit’s tilt ..........................................................................................................................Pag. 11
4.4 Optical group, framing system and gobos.................................................................................Pag. 11
5. Powering up ..........................................................................................................................................Pag. 13
5.1 Operating voltage and frequency ............................................................................................... Pag. 13
5.2 Connection to mains power .........................................................................................................Pag. 13
6. Control signal connections ............................................................................................................Pag. 14
6.1 Control signal connection by XLR5 plugs ................................................................................. Pag. 14
7. Turning on the projector .................................................................................................................Pag. 15
7.1 DMX address of the unit ................................................................................................................ Pag. 15
8. DMX Chart ............................................................................................................................................Pag. 16
8.1 DMX Chart 5 or 1 channels ............................................................................................................Pag. 16
9. Display panel functions ................................................................................................................... Pag. 17
9.1 Quick guide to menu ....................................................................................................................... Pag. 17
9.2 Rapid count ..................................................................................................................................... Pag. 17
9.3 Quick dimmer menu........................................................................................................................Pag. 18
9.4 Main functions menu .................................................................................................................... Pag. 19
9.5 Measure (MEAS) ............................................................................................................................ Pag. 21
9.6 Electronic alignment of the LEDs .............................................................................................. Pag. 23
9.7 Special functions of the fixture .................................................................................................. Pag. 24
9.8 Error messages ............................................................................................................................. Pag. 24

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10. Accessories and spare parts ..................................................................................................... Pag. 25
11. Maintenance ..................................................................................................................................... Pag. 25
11.1 Firmware update .......................................................................................................................... Pag. 25
11.2 Periodic cleaning ......................................................................................................................... Pag. 25
11.3 Periodic controls .......................................................................................................................... Pag. 25
11.4 Fuses ...............................................................................................................................................Pag. 25
12. F.A.Q. and answers ......................................................................................................................... Pag. 26

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Congratulations on having purchased a Coemar product. You have assured yourself of a fixture of the highest
quality, both in componentry and in the technology used. We renew our invitation to you to complete the service
information on the previous page, to expedite any request for service information or spares (in case of problems
encountered either during, or subsequent to, installation). This information will assist in providing prompt and ac-
curate advice from your Coemar service centre. Following the instructions and procedures outlined in this manual
will ensure the maximum eciency of this product for years to come.
1. Packaging and transportation
1.1 Packaging
Open the packaging and make sure that no part of the equipment has suered any damage during the transpor-
tation. In case of damage to the fixture, contact your currier and your supplier immediately by telephone, fax or
email, and inform them you will formally notify them in writing through registered letter.
Packing list
Ensure the packaging contains:
1 LEDko EXT Basic
1 Instruction manual
2. General information
2.1 Safety information
Fire prevention:
1. Never locate the fixture on any flammable surface.
2. Minimum distance from flammable materials: 0,5 m.
3. Minimum distance from the closet illuminable surface: 0,5 m.
4. Replace any blown or damaged fuse only with those of identical values. Refer to the sche-
matic diagram if there is any doubt.
5. Connect the projector to mains power protected by a thermal magnetic circuit breaker.
Prevention from electric shock:
1. Presence of high voltage inside of the fixture. Insulate the projector from mains supply
before opening or performing any function which involves touching the inside of the fix-
ture, including lamp replacement.
2. For the connection to the mains, adhere strictly to the guidelines outlined in this manual.
1.2 Transportation
The LEDko EXT Basic should be transported in either its original packaging or in an appropriate flight case.

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Safety:
1. The projector must always be installed with bolts, clamps, or other fixing devices which are
suitably rated to support the weight of the projector.
2. Always use a secondary safety fixing device with chain or steel wire of a suitable rating to
sustain the weight of the unit in case of failure of the principal fixing point.
3. The external surfaces of the unit, at various points, may reach 60°C. Never handle the
unit until at least 10 minutes have elapsed since the LED was turned o.
4. Never install the fixture in an enclosed area lacking sucient air flow; the room tempera-
ture must not exceed 35°C.
5. The projector contains electronic and electrical components which must under no cir-
cumstances be in contact with water, oil or any other liquid. Failure to do so will compro-
mise the proper functioning of the projector.
2.2 Warranty conditions
1. The fixture is under warranty for 36 months from the purchase date against factory defections.
2. Damage ought to unskillfulness, inappropriate use, or lack of suggested maintenance are excluded from the
warranty.
3. Warranty expires when the projector is opened by unauthorized personnel.
4. Warranty doesn’t include the replacement of the fixture.
5. Serial number and model of the fixture are necessary to retrieve informations and assistance from the
dealer.
2.3 EC Norms
The projector meets all fundamental applicable EC requirements.
3. The level of technology of LEDko EXT Basic requires the use of specialised personnel for
all service applications; refer all work to your authorised Coemar service centre.
4. A good earth connection is essential for the proper functioning of the projector.
Never connect the fixture if there is no earth connection.
5. Mains cables must not come into contact with other cables.
6. Do not operate the projector with wet hands or in an area where water is present.
7. The fixture must never be located in an exposed position, or in areas of extreme humidity.

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3. Product specifications
3.1 Technical characteristics
3.2 Dimensions
Power supply 90-305 V, auto-sensing, 50/60 Hz
Maximum current 0.6 A at 230 V, 1.27 A at 115 V
Power factor Cosφ= 0.96
Max power consumption 140 W
Color temperature Tungsten: 3.200 K - Daylight: 5.600 K
Color Rendering Index (CRI) D and Tmodels: CRI 80, CRI 90
Weight 14.0 Kg - 30.8 lbs (with 14°-35° Optic),
15.5 Kg - 34.2 lbs (with 10°-25° Optic)
Storage temperature from - 40° C / -40° F to + 85° C / +185° F
Operating temperature from - 40° C / -40° F to + 40° C / +104° F
IP rating 65
LEDko EXT with 10°-25° Optic
LEDko EXT with 14°-35° Optic
687.8 mm
28.07 in
252.6 mm
9.94 in
405 mm
15.94 in
252.6 mm
9.94 in
405 mm
15.94 in
807.72 mm
31.8 in
185 mm
7.28 in
ø 75 mm
Internal gobo holder

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3.3 Unit’s main components
Components description
AYoke with mounting holes
BCooling unit
COptical holder tube
DLocking screw for yoke
A
C
B
D

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3.4 Back panel description
Power In
Breather valve

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4. Installation
4.1 Mechanical installation
LEDko EXT Basic may be hung from an appropriate structure in any position or on tripod. If hanging the fixture
from a lighting truss or similar, we recommend the use of an appropriate clamp “A”, as shown in the following
diagram.
Always ensure that your support structure
and fixing (bolts, clamps, etc…) are rated to
support the weight of the fixture.
4.2 Safety chain
When hanging LEDko EXT Basic it is recommended to use a safety chain, as required by current legislation. The
safety chain must pass through the handles of the unit and then attached to the structure.
If using steel cables and chains not Coemar’s production, make sure they are suitable to support the weight of
the unit according to normative UL/ETL (required: the weight of 6 complete devices for at least one hour).
A

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4.4 Optical group, framing system and gobos
Follow these steps in order to configure the optical group properly:
1. Remove the two screws “C” placed on both sides of the optical holder tube;
2. Gently remove the optical holder tube “D” pulling it away from the body;
3. Loose the thumbscrews “E” of the two lenses to set them at desired position. Turn on the fixture and check
if the desired focus and zoom lever are correct, then tighten the thumbscrews;
4.3 Adjusting unit’s tilt
1. In order to adjust the tilt of the unit simply loose the side screw “B” on the yoke, adjust the tilt and lock the
yoke by tightening the screw again.
C
D
E
B
!Before closing the cover after each cleaning
or adjustment, remember to heat the LEDs
for at least 20 minutes, to be sure to elimi-
nate all traces of humidity inside and make
sure that the sheaths remain in their seat to
avoid infiltrations.

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4. It is possible to regulate the blades “D” to achieve the desired shape, use the four thumbscrews “E” that you
can see behind the blades to free or block them;
5. It is possible to use the gobos, to do so open the gobo holder, insert a normal gobo or a glass gobo and close
the gobo holder;
7. Reassemble the projector by pushing the optical holder tube on the optical group and tighten the
screws that has been removed at the beginning.
NB: When putting the screws, be careful not to tighten too much, otherwise it may deform the base of
the optical holder tube.
6. Use the hole that you can see above and under the projectors to lock the optical group’s position, tighten
the two screws symmetrically with each other in order to keep straight your optical group;
D
E

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5. Powering up
5.2 Connection to mains power
Mains cable characteristics
The mains cable provided is thermally resistant, complying to the most recent International standards.
Note: in case of cable replacement, similar cable with comparable thermal resistant qualities must be used
exclusively (cable 3 X 1,5 ø external 10 mm, rated 300/500V, tested to 2 KV, operating temperature -40°C
+ 180°C, Coemar cod. CV5311).
Connection to mains power
LEDko EXT Basic is equipped with an internal cable without power plug.
The max absorption of LEDko EXT Basic is reported in the following table:
- 230 V 0.92 A constant during normal exercise.
- 115 V 1.83 constant during normal exercise.
5.1 Operating voltage and frequency
The unit may operates at voltages ranges from 85 to 264 V at a frequency of 50 or 60 Hz. It is not needed to
eect any setup procedures: LEDko EXT Basic will automatically adjust its operation to suit any frequency or
voltage within this range.
fase
neutra l
mass
brow n
blue
yellow/green

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Warning!!
The use of a thermal/magnetic circuit breaker is recommended. Strict adherence to regulatory norms is
strongly recommended.
LEDko EXT Basic should not be powered through a dimmer as this may damage the internal switching
power supply.
Prior to connecting the device to mains power, ensure that the mains characteristics are within the recom-
mended range for the use of LEDko EXT Basic.
All cabling and connections should be carried out by a suitably qualified personnel.
Warning!
Make sure that screening and conductors are not in contact one another or with the metal housing of
the connector.
Pin#1 and housing never must be connected to the power supply unit.
6.1 Control signal connection by XLR5 plugs
The digital control signal is transmitted to the projector via a two pole cable screened as per International stan-
dards for the transmission of DMX 512 data. The connection must be serial, using connectors XLR5 male and
female located on the back of LEDko EXT Basic labelled DMX512 IN e OUT (see diagram).
Connectors equipped on LEDko EXT Basic are IP rated, which ensures protection against water and dust. In
order to keep this rating they must be connected exclusively to other IP rated connectors.
6. Control signal connections
DMX IN DMX OUT

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A00 1
7. Turning on the projector
After having followed the preceding steps described, proceed with the power supply and turn on the projector
connecting it to the mains power.
The software version installed on the internal microprocessors will be shown on the display, suddenly it will show
the current DMX addressing. If the address blinks, it means that the DMX signal has not been received. Check
the connection cable and the mixer functioning.
7.1 DMX address of the unit
Each projector can use 5 or 1 address channels for its complete operation and is controlled by a DMX 512 signal.
DMX addressing
When powered up initially, each projector will show “A001”, which indicates that the fixture will start respond-
ing from the first DMX channel; LEDko EXT Basic also uses 5 DMX channels, which means that it will respond
to the commands from channel 1 to channel 5 of your DMX 512 controller. Accordingly a second unit should
be addressed as A006, a third one as A011 and so on. The operation must be carried out on every LEDko EXT
Basic which has an address dierent from A001.
Altering the DMX address:
1. Press the + or – button until the display shows the required DMX address. The digits on the display will blink
to indicate that the variation has not been registered.
2. Press the enter key to confirm your selection. The digits on the display panel will cease to blink and the
projector will now respond to the new address.
Note: by holding the + or – button down the scrolling will be faster; thus allowing a faster
selection
Warning!
If you alter the DMX address with no DMX signal connected, the digits on the display
panel will continue to flash even after you have pressed ENTER button to confirm the
address.

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8. DMX chart
8.1 DMX Chart 5, 1 channels
channel function type of control eect decimal percentage
1 1 master dimmer proportional adjust luminous output intensity from 0 to 100% 0 - 255 0% - 100%
2 - spare channel step no eect 0 - 255 0% - 100%
3 - dimmer fine proportional fine dimmer control 16 bit 0 - 255 0% - 100%
4 - strobe
step no eect 0 - 9 0% - 4%
proportional variable speed strobing eect, from slow to fast 10 -57 4% - 22%
step stop strobe 58 - 59 23% - 23%
proportional
sequenced pulse eect,
slow closing, fast opening
(variable speed pulsing, from slow to fast)
60 - 108 24% - 42%
step stop strobe 109 -110 43% - 43%
proportional
sequenced pulse eect,
fast closing, slow opening
(variable speed pulsing, from slow to fast)
111 - 159 44% - 62%
step stop strobe 160 - 161 63% - 63%
proportional random strobe eect with variable speed
from slow to fast 162 -207 64% - 81%
step stop strobe 208 - 209 82% - 82%
proportional random strobe eect with variable speed
from slow to fast 210 - 255 82% - 100%
5 - special functions
step
no eect 0 - 9 0% - 4%
600 Hz 10 - 84 4% - 33%
fan at low-noise speed 85 - 96 33% - 38%
fan at auto-silent speed 97 -108 38% - 42%
proportional fan speed control 109 - 120 43% - 47%
step
fan at maximum speed 121 - 133 47% -52%
enables the automatic display blackout 134 - 185 53% - 73%
disables the automatic display blackout 186 - 199 73% - 78%
LED control frequency tuning 1.000 Hz 200 - 205 78% - 80%
LED control frequency tuning 3.000 Hz 206 - 211 81% - 83%
LED control frequency tuning 6.000 Hz 212 - 217 83% - 85%
LED control frequency tuning 8.000 Hz 218 - 223 85% - 87%
LED control frequency tuning 10.000 Hz 224 - 229 88% - 90%
LED control frequency tuning 12.000 Hz 230 - 235 90% - 92%
LED control frequency tuning 14.000 Hz 236 - 241 93% - 95%
LED control frequency tuning 16.000 Hz 242 -247 95% - 97%
LED control frequency tuning 19.000 Hz 248 - 255 97% - 100%

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9. Display panel functions
9.1 Quick guide to menu
To access the functions menus just press the MENU button. Then press + or – buttons to scroll the pages and
press the ENTER button to access to any other function.
By suitably using all the functions of LEDko EXT Basic, which can be activated through its display panel, it is
possible to change some of the parameters and to add some functions. Changing the preset settings made by
Coemar can vary the functions of the projector so that it will respond dierently to the controller; therefore
carefully read about the functions described here before carrying out any possible selection.
9.2 Rapid count
Through the display panel of LEDko EXT Basic it is possible to quickly change the various numbers displayed for
the dierent functions in the following 3 manners:
1. Pressing the + or – buttons will cause the count to be quicker.
2. Pressing first + and then – and then holding them down simultaneously will cause the numbers to jump to
the highest value.
3. Pressing first – and then + and then holding them down simultaneously will cause the number to jump to
the lowest value.

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9.3 Quick dimmer menu
0
20
10
90
100
By pressing the enter button, the user will enter the quick dimmer menu: thanks to this menu it will be possible to
increase and decrease the light intensity in steps of 10 (in a range from 0 to 100).

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9.4 Main functions menu (FUNC)
On
OFF
ESP
[Exponential]
LOG
[Logarithmic]
LIn
[Linear]
diMM
[Dimmer]
Strb
[Strobe]
Tungsten:
Mimics the slow dimming curve of tungsten
lamps.
Dimmer:
It allows the selection of dierent dimmer
curves: exponential (default), logarithmic and
linear;
Test:
Allows to manually set the DMX channels con-
trolled by a DMX console:
• Dimmer: sets the luminous intensity;
• Strobe: manually sets the strobe DMX
channel;
• Store: stores the modifications that will
be set at the next times the fixture will be
turned on.
Fan Speed:
• Auto: under this setting the fan speed var-
ies based on the overall temperature of the
fixture to guarantee the maximum output
possible;
• Low noise: this setting will keep the speed of
the fan at the minimum level while the light
output will decrease in case of overheat.
tUnG
[Tungsten]
dIMM
[Dimmer]
tESt
[Test]
StOr
[Store]
FAn
[Fan Speed]
AUtO
[Auto]
LO
[Low noise]

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dISP
[Display]
611 - 19000
DMX channels:
Shows the DMX mode and number of channels
selectable;
Display functions:
Changes the display settings:
• Reverse: rotates the display of 180°;
• Password selection: allows to
choose a personal password, to do this use
the buttons on the back panel (menu=1,
enter=2, plus=3, minus=4). To unlock the
projector, press the keys in the order previ-
ously decided;
• Auto: Sets or disables the automatic display
turn o function, which would occour after
10 seconds of inactivity;
• Password: allows to choose whether to set
the password or not;
Note: The AUTO and HOLD function become
active only when the DMX address selection
is displayed (A001). The eect of AUTO and
HOLD trigger after 10 seconds of keyboard in-
activity. To turn on the display it is enough to
push a button, to unlock the keyboard it is nec-
essary to hold any button down for a few sec-
onds.
LED Frequency:
Allows to choose the operating frequency of
the LEDs in order to avoid flickering issues with
video recording devices. The excursion varies
from 611 Hz (default) to 19000 Hz.
Default Settings:
It restores all the settings to default value ex-
cept for led settings, hour and DMX address.
Measures:
Allows to read all the parameters: LED and
board temperatures, fan level, DMX ratio,
DMX, alarms, channels value and software ver-
sion.
dMX
[DMX channels]
FrE
[LED Frequency]
5 CH
[5 Channels]
1 CH
[1 Channel]
rurS
[Reverse]
PSEL
[Password selection]
AUtO
[On - O]
dF.SE.
[Default Settings]
MEAS.
[Measures]
PASS
[Password]