Coemar REFLECTION LEDko EXT User manual

EXT
with dual gobo rotator

2
Please note in the space provided above the relative service information of the model and the
retailer from whom you purchased your LEDko EXT: 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 xture 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 4.2
Edition December 2019
EXT
with dual gobo rotator

3
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 specications ......................................................................................................................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 Optic group, framing system and gobos ...................................................................................Pag. 11
4.5 How to remove the ‘Dual gobo rotator’ ......................................................................................Pag. 12
4.6 How to mount the four blade framing system .........................................................................Pag. 12
4.7 How to insert the glass/metal gobo ...........................................................................................Pag. 13
5. Powering up ..........................................................................................................................................Pag. 14
5.1 Operating voltage and frequency ............................................................................................... Pag. 14
5.2 Connection to mains power .........................................................................................................Pag. 14
6. Control signal connections ............................................................................................................Pag. 15
6.1 Control signal connection by XLR5 plugs ................................................................................. Pag. 15
7. Turning on the projector .................................................................................................................Pag. 16
7.1 DMX address of the unit ................................................................................................................ Pag. 16
8. DMX Chart .............................................................................................................................................Pag. 17
8.1 DMX Chart 5 or 1 channels .............................................................................................................Pag. 17
9. Display panel functions .................................................................................................................. Pag. 20
9.1 Quick guide to menu..................................................................................................................... Pag. 20
9.2 Rapid count .................................................................................................................................... Pag. 20
9.3 Quick dimmer menu ..................................................................................................................... Pag. 21
9.4 Main functions menu ................................................................................................................... Pag. 22
9.5 Measure (MEAS) ............................................................................................................................. Pag. 24
9.6 Electronic alignment of the LEDs .............................................................................................. Pag. 26
9.7 Special functions of the xture .................................................................................................. Pag. 27
9.8 Error messages ............................................................................................................................. Pag. 27

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10. Spare parts ........................................................................................................................................ Pag. 28
11. Maintenance ..................................................................................................................................... Pag. 28
11.1 Firmware update .......................................................................................................................... Pag. 28
11.2 Periodic cleaning ......................................................................................................................... Pag. 28
11.3 Periodic controls .......................................................................................................................... Pag. 28
11.4 Fuses ...............................................................................................................................................Pag. 28
12. F.A.Q. and answers ......................................................................................................................... Pag. 29

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Congratulations on having purchased a Coemar product. You have assured yourself of a xture
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 accurate 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 transportation. In case of damage to the xture, 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
1 Instruction manual
2. General information
2.1 Safety informations
Fire prevention:
1. Never locate the xture on any ammable surface.
2. Minimum distance from ammable 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 schematic diagram if there is any doubt.
5. Connect the projector to mains power protected by a thermal magnetic cir-
cuit breaker.
Prevention from electric shock:
1. Presence of high voltage inside of the xture. Insulate the projector from mains
supply before opening or performing any function which involves touching
the inside of the xture, 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 should be transported in either its original packaging or in an appropriate ight
case.

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Safety:
1. The projector must always be installed with bolts, clamps, or other xing de-
vices which are suitably rated to support the weight of the projector.
2. Always use a secondary safety xing device with chain or steel wire of a suit-
able rating to sustain the weight of the unit in case of failure of the principal
xing 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 xture in an enclosed area lacking sucient air ow; the
room temperature must not exceed 35°C.
5. The projector contains electronic and electrical components which must un-
der no circumstances be in contact with water, oil or any other liquid. Failure
to do so will compromise the proper functioning of the projector.
2.2 Warranty conditions
1. The xture is under warranty for 36 months from the purchase date against factory defec-
tions.
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 xture.
5. Serial number and model of the xture 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 requires the use of specialised per-
sonnel 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 projec-
tor. Never connect the xture 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 xture must never be located in an exposed position, or in areas of ex-
treme humidity.

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Power supply 85-264 V, auto-sensing, 50/60 Hz
Maximum current 0.96 A at 230 V, 1.92 A at 115 V
Power factor Cosφ= 0.95
Max power consumption 210 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
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
3. Product specications
3.1 Technical characteristics
3.2 Dimensions
=
687.8 mm
27.07 in
252.6 mm
9.94 in
405 mm
15.94 in
252.6 mm
9.94 in

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

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3.4 Back panel description
Plus button
Minus button
DMX Out
DMX In
Display
Menu button
Enter button
Power In

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4. Installation
4.1 Mechanical installation
LEDko EXT may be hung from an appropriate structure in any position or on tripod. If hanging
the xture 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 xing (bolts, clamps, etc…) are rated to
support the weight of the xture.
4.2 Safety chain
When hanging LEDko EXT it is recommended to use a safety chain, as required by current leg-
islation. 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 sup-
port 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 congure 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
xture and check if the desired focus and zoom lever are correct, then tighten the thumb-
screws;
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

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4.5 How to remove the ‘Dual gobo rotator’
When you will receive LEDko EXT, the dual gobo rotator will already be installed in the projector
”F”; then follow the instructions below to remove it:
Once the optical tube holder has been removed, disconnect the plug that connect the motors
to the LEDko EXT body, unscrew the screws “G”, pull the dual gobo rotator up by one/two cen-
timeters, incline it “H” until it can be removed from the opticl group
4.6 How to mount the four blade framing system
Once the dual gobo rotator has been removed, the four blade framing system can be inserted.
Incline the four blade framing system “I”, insert it into the optic group, place it in the appropriate
slot and screw the previously unscrewed screws “J”.
F
G
H
I
J

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4.7 How to insert the glass gobos
To insert one or two (glass or metal) gobo, follow the 4.5 paragraph to remove the dual gobo ro-
tator; then screw o the metal rings “K” that will keep the gobo steady with the provided key “L”,
follow the same steps if you want to mount a second gobo on the back. Once removed one or
both the rings, place your gobo “M” at will. Done this, proceed with the re-closing the dual gobo
rotator. Then place the rings in the appropriate slot and re-tighten until the gobo is well xed.
At this point reinsert the dual gobo rotator keeping it slightly inclined “N” so that it can enter in
the optical group and x it in the slot. Finally reconnect the plug that goes from the motors of
the dual gobo rotator to the body of the LEDko EXT. At this point following the DMX chart you
should be able to move your gobo at your convenience.
K
L
M
N

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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 is equipped with an internal cable without power plug.
The max absorption of LEDko EXT is reported in the following table:
- 230 V 0.96 A constant during normal exercise.
- 115 V 1.92 A 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 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 regula-
tory norms is strongly recommended.
LEDko EXT 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 recommended range for the use of LEDko EXT.
All cabling and connections should be carried out by a suitably qualied 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 standards 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 labelled DMX512 IN
e OUT (see diagram).
Connectors equipped on LEDko EXT 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 connec-
tors.
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 8 or 4 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 xture will
start responding from the rst DMX channel; LEDko EXT also uses 8 DMX channels, which
means that it will respond to the commands from channel 1 to channel 8 of your DMX 512 con-
troller. Accordingly a second unit should be addressed as A009, a third one as A018 and so on.
The operation must be carried out on every LEDko EXT 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 conrm 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 ash even after you have pressed ENTER button to conrm the
address.

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8. DMX chart
8.1 DMX Chart 8 channels
channel function type of
control eect decimal percentage
1master
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%
3dimmer ne proportional ne 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%
5special
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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6gobo rotation
speed proportional adjust proportionally the speed of both gobos 0 - 255 0% - 100%
7 speed gobo 1
step gobo in stop 0 0%
proportional control the gobo 1 speed counterclockwise
(from fast to slow) 1 - 125 0% - 49%
step gobo in stop 126 - 129 49% -51%
proportional control the gobo 1 speed clockwise
(from slow to fast) 130 - 254 51% - 100%
step gobo in stop 255 100%
8 speed gobo 2
step gobo in stop 0 0%
proportional control the gobo 2 speed counterclockwise
(from fast to slow) 1 - 125 0% - 49%
step gobo in stop 126 - 129 49% -51%
proportional control the gobo 2 speed clockwise
(from slow to fast) 130 - 254 51% - 100%
step gobo in stop 255 100%

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8.2 DMX Chart 4 channels
channel function type of
control eect decimal percentage
1master
dimmer proportional adjust luminous output intensity from 0 to 100% 0 - 255 0% - 100%
2gobo rotation
speed proportional adjust proportionally the speed of both gobos 0 - 255 0% - 100%
3 speed gobo 1
step gobo in stop 0 0%
proportional control the gobo 1 speed counterclockwise
(from fast to slow) 1 - 125 0% - 49%
step gobo in stop 126 - 129 49% -51%
proportional control the gobo 1 speed clockwise
(from slow to fast) 130 - 254 51% - 100%
step gobo in stop 255 100%
4 speed gobo 2
step gobo in stop 0 0%
proportional control the gobo 2 speed counterclockwise
(from fast to slow) 1 - 125 0% - 49%
step gobo in stop 126 - 129 49% -51%
proportional control the gobo 2 speed clockwise (from slow
to fast) 130 - 254 51% - 100%
step gobo in stop 255 100%

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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, 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 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 rst + and then – and then holding them down simultaneously will cause the num-
bers to jump to the highest value.
3. Pressing rst – and then + and then holding them down simultaneously will cause the num-
ber to jump to the lowest value.