ETC®, Emphasis®, Expression®, Insight™, Imagine™, Focus™, Express™, Unison®, Obsession® II, ETCNet2™,
EDMX™, Source Four
of Electronic Theatre Controls, Inc. in the United States and other countries.
All other trademarks, both marked and not marked, are the property of their respective owners.
i
®
, Revolution®, Sensor®, and WYSILink™ are either registered trademarks or trademarks
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Basic Assembly
Color frame holder
Beam focus knob
Color frame
Lens tube
Barrel assembly
Barrel rotation knob
Yoke locking knob
Lamp housing
assembly
Insulated handle
Reflector housing
Yoke
Retainer bolt
Shutters
Pattern holder slot
Drop-in iris slot
NOTE: Safety cable is included for
cUL applications
Figure 1
WARNING:
Please note the following safety warnings before use:
Do not mount the fixture on or near combustible surfaces.
Do not operate the fixture without a lens installed.
Always hang the fixture with the color frame retaining clip in the locked
position.
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Fixture information
Figure 2
Retaining clip in the
locked position
HPL lamp table
CAUTION:
Do not use lamps other than the HPL in Source Four fixtures. Use of lamps other
than HPL will void UL/cUL safety compliance and your warranty.
Lamp code Watts Volts Initial Lumen Color temp. Average rated life
HPL 780/77*7507722,9503,250°300 hours
HPL 550/77*5507716,1703,250°300 hours
HPL 550/77X*5507712,1603,050°2000 hours
HPL 750/11575011521,9003,250°K300 hours
HPL 750/115X75011516,4003,050°1500 hours
HPL 575/11557511516,5203,250°K300 hours
HPL 575/115X57511512,3603,050°K2000 hours
HPL 375/11537511510,5403,250°K300 hours
HPL 375/115X3751158,0003,050°K1000 hours
HPL 750/12075012021,9003,250°K300 hours
HPL 750/120X75013016,4003,050°K1500 hours
HPL 575/12057512016,5203,250°K300 hours
HPL 575/120X57512012,3603,050°K2000 hours
HPL 750/23075023019,7503,200°K300 hours
HPL 750/230X75023015,6003,050°K1500 hours
HPL 575/23057523014,9003,200°K400 hours
HPL 575/230X57523011,7803,050°K1500 hours
HPL 375/230X3752307,2503,000°K1000 hours
HPL 750/24075024019,7503,200°K300 hours
HPL 750/240X75024015,6003,050°K1500 hours
HPL 575/24057524014,9003,050°K400 hours
HPL 575/240X57524011,7803,050°K1500 hours
HPL 375/240X3752407,2503,000°K1000 hours
* To be used with ETC Dimmer Doubler™
Color frame holder
The color frame holder is equipped with a spring-loaded retaining clip that prevents color frames
and accessories from falling out. See Figure 2.
WARNING:
Make sure all color frame accessories are locked in position with the
retaining clip before hanging the Source Four fixture.
Step 1:Release the retaining clip by pushing it sideways while gently pulling backwards.
2Source Four User Manual
Page 7
Step 2:Insert the color frame.
Step 3:Lock the retaining clip by pushing sideways while gently pushing forward.
Note:
The performance of saturated colors may be less than desirable in any theatrical
lighting fixture, especially when equipped with a 750w lamp. For best results,
always use high-quality color media rated for high-temperature use.
ETC’s optional Conical Gel Extender, part # 7060A1048, will provide maximum
color media life. For 14° lens tubes, use part # PSF1029. Gel Extenders are not
recommended for 70° and 90° lens tubes due to the extremely wide-angle beam.
A variety of heat shield products is also available from many color media
manufacturers. Follow the manufacturer’s instructions for the use of these
products.
For maximum gel life with specific lens tubes, refer to the tables below.
Lens TubeSoft Focus Back
(Lamp “flat”)
14°worsegoodbestgood
70°bestgoodworsegood
90°bestgoodgoodworse
19°worsebetterbetternot applicable
26°worsebetterbetternot applicable
36°betterbetterworsenot applicable
50°worsebetterbetternot applicable
Sharp Focus
(Lamp “cosine”)
Soft Focus Forward
(Lamp “peak”)
Soft Focus Forward
(Lamp “cosine”)
ED Lens TubeSoft Focus Back
(Lamp “flat”
19°worsebetterbetternot applicable
26°betterbetterworsenot applicable
36°betterbetterworsenot applicable
50°betterbetterworsenot applicable
Sharp Focus
(Lamp “cosine”)
Soft Focus Forward
(Lamp “peak”)
Soft Focus Forward
(Lamp “cosine”)
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Replacing the HPL Lamp
HPL lamp
Lamp retention
brackets
Lamp housing
Figure 3
Knurled bolt
Lamp retaining
clips
INCORRECT
CORRECT
A lamp must be installed before you use the fixture.
Note:
WARNING:
Step 1:Disconnect power to the Source Four before installing the lamp.
Step 2:Loosen the knurled bolt on the back of the lamp housing and pull the housing out.
Step 3:Holding by the base, remove the HPL lamp from its box.
CAUTION:
Verify that the HPL lamp you intend to install is suitable for your facility’s voltage;
115-, 120-, 230-, and 240-volt HPL lamps are available. See HPL lamp table, page
2. Operating HPL lamps above their rated voltage reduces lamp life and can cause
premature lamp failure.
Let the lamp cool before replacing.
Use caution when installing or replacing any lamp.
When installing/replacing lamp, be sure to point the lamp away from your face and
away from others before inserting it firmly into the assembly.
This may prevent injuries if the lamp should break.
4Source Four User Manual
Note:
Step 4:Align the flat sides of the lamp base with the retention brackets on either side of the
socket as shown in Figure 3.
Step 5:Push down on the lamp base until the lamp seats firmly. When properly installed, the top
of the lamp’s base will be even with he top edges of the retention brackets.
CAUTION:
Step 6:Press lamp retaining clip across lamp base to secure.
Step 7:Reinstall the lamp housing by aligning the bolt hole and tightening the knurled bolt.
To avoid premature lamp failure, do not touch the lamp glass. If you do, clean it
carefully with isopropyl alcohol and a clean lint-free cloth. Allow to dry before
operation.
Improperly installed lamps cause premature lamp failure and socket problems.
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Adjustments
Outer Knob - lamp
center adjustment
Inner Knob peak/flat field
adjustment
Rear lamp
housing
Figure 4
Figure 5
Flat field-best adjustment
Hot spot - lamp pulled out
too far
Field with hole - lamp
pushed in too far
Beam focus knob
Figure 6
Centering lamp and adjusting the field
The two concentric knobs located on the lamp housing allow you to align the lamp and adjust its
field. See Figure 4. The outer knob centers the lamp within the reflector. The inner knob adjusts the
lamp’s field.
Step 1:Turn on the Source Four and aim it at a flat surface. Adjust the barrel to create a hard
edge.
Step 2:Unlock and loosen the outer knob by turning it counterclockwise.
Step 3:Gently move the outer knob from side to side and up and down until the lamp is centered
within the reflector.
Step 4:Once the lamp is centered, turn the outer knob clockwise to lock it in place.
Step 5:Finally, turn the inner knob either clockwise or counterclockwise to achieve an optimum
flat field. See Figure 5.
Focusing the beam
Step 1:Loosen the beam focus knob located under the barrel as shown in Figure 6.
Step 2:Slide the lens tube forward or backward to achieve the desired beam edge.
Step 3:Once the fixture is focused, tighten the beam focus knob.
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Shaping the beam
Figure 7
A-Size Pattern holder:
holds 3” diameter patterns
B-Size Pattern holder:
holds 2.5” and 2.75”
diameter patterns
Drop-in iris slot
Iris
Figure 8
The beam can be shaped using the shutters (see Figure 1), a pattern, an optional drop-in iris, or by
rotating the barrel.
Pattern Projection
The pattern holder slot is on the top side of the barrel and in front of the shutters. It accommodates
A-size, B-size and glass pattern holders (see Figure 7).
3.12" Diameter
2.75" Diameter
3.70"
3.70"
Note:
Note:
Use an optional donut in the accessory holder to enhance pattern projection. Donut diameter range
should be 2.5” to 2.75”.
Drop-In Iris Slot
The drop-in iris slot is located on the top of the barrel and in front of the pattern holder slot. It
accommodates either a drop-in iris or a motorized pattern device. When the slot is not in use, a
small sheet metal cover secured with two Phillips screws prevents light leakage (see Figure 8).
Step 1:Use a Phillips screwdriver to loosen the screws on the drop-in iris slot cover. Do not
Step 2:Slide the cover completely forward to expose the slot.
Step 3:Insert the iris or motorized pattern device. For an iris, install the flat side toward the
Because the Source Four aperture is 3 inches wide, ETC recommends using Asize patterns for maximum pattern effectiveness.
Enhanced Definition Lens Tubes (EDLT) provide for a crisper pattern projection.
remove screws.
shutters and make sure the iris handle extends from the slot.
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Step 4:Slide the slot cover back toward the shutters until it meets the iris handle. Leave enough
Figure 9
Barrel rotation knob
C-clamp
Pipe bolt
Pan screw
Yoke bolt and
lockwasher
Figure 10
space to move the iris handle.
Step 5:Secure the drop-in iris slot cover by tightening the screws.
Rotating the barrel assembly
Step 1:Loosen the barrel rotation knob directly behind the shutters on the underside of the
reflector housing (see Figure 9). Do not remove the barrel rotation knob.
Step 2:Rotate the barrel to the desired position (up to 25° in either direction from the centered
position).
Step 3:Once the barrel is positioned, tighten the barrel’s rotation knob to lock it in place.
Adjusting the C-clamp
The C-clamp attaches the fixture to the mounting pipe and allows you to adjust the position of the
fixture once it is mounted (see Figure 10).
Step 1:Tightly fasten the C-clamp to the yoke with the provided yoke bolt and lock washer.
Step 2:Place the C-clamp on mounting pipe, then tighten the pipe bolt to secure it.
Step 3:Loosen the C-clamp pan screw and rotate the yoke to the desired position.
Step 4:Tighten the pan screw to lock the fixture.
CAUTION:
Tighten C-clamp pipe bolt to 15-20 ft./lbs. (approximately finger tight plus up to
one-quarter turn). Do not exceed 25 ft./lbs. Do not use excessive force.
Tighten the yoke pivot bolt to 5-10 ft./lbs. (approximately finger tight plus up to
one-eighth turn). Do not exceed 15 ft./lbs. Do not use excessive force.
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Adjusting the yoke position
Figure 11
Low clearance position
General use position
Yoke locking knob
Figure 12
The Source Four provides multi-positioning capabilities within its yoke for overall fixture height and
angle.
Setting the fixture height within the yoke
The Source Four has a two-position yoke for modifying the overall height in which the fixture is
mounted (see Figure 11). To change the height position, perform the following steps.
Step 1:Remove the yoke locking knobs, washers, and hex bolts from either side of the fixture.
Step 2:Raise or lower the fixture to the desired position within the yoke.
Step 3:Reinstall the yoke’s hex bolts, washers, and locking knobs.
Step 4:Tighten the yoke knobs to secure in position.
Setting the angle within the yoke
Step 1:Loosen the yoke locking knobs (see Figure 12). Do not remove them.
Step 2:Tilt the fixture to the desired position.
Step 3:Tighten the yoke locking knobs to secure in position.
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Cleaning Lens and Reflector
WARNING:
Replace lenses if they contain visible damage (cracks or deep scratches) that may impair their
effectiveness.
Do not use ammonia-based or other harsh commercial cleaners. Clean lens
and reflector only as directed.
Commercially available glass cleaning agents should be avoided as they
may contain ammonia, other harsh chemical detergents or abrasive agents.
These cleaners may damage the glass surface and the Anti-Reflective
coatings. Do not immerse or soak the glass in any cleaning solution.
Cleaning 14°, 19°, 26°, 36°, 50°, 70°, 90° and all EDLT glass lenses
Step 1:Remove the beam focus knob and retainer bolt from the barrel (see Figure 1). Remove
the lens tube from the barrel.
Note:
Step 2:Remove dust with a blast of oil-free air or wipe with a clean, lint-free cloth. Isopropyl
alcohol, distilled water or a 50%-50% mixture of each can be used to clean the glass
surface.
Step 3:Slide the lens tube back into the barrel with the color frame retaining clip on top. Reinstall
the beam focus knob and retainer bolt.
To clean the inside of lenses, it is necessary to remove the lenses from the lens
tube for cleaning. Instruction for removing the lens can be found in the Source
Four Assembly Guide available for download at our website:
www.etcconnect.com.
Cleaning 5° and 10° polymer lenses
To quickly clean the lenses, remove dust with a blast of oil-free air. If this is not sufficient, follow
these steps.
CAUTION:
Step 1:Remove the beam focus knob at the bottom of the barrel (see Figure 1). Remove the lens
tube from the barrel.
Step 2:Use a Phillips screwdriver to remove the brackets that hold the lens in place. Remove the
lens from the tube.
Step 3:Dip the lens in a clean isopropyl alcohol/water mixture (9 parts water to 1 part isopropyl
alcohol).
Step 4:Use a soft moistened nylon bristle brush to wash the lens’ smooth side in a linear (non-
circular) motion.
Step 5:Use the same brush to lightly wash the lens’ ridged side by following its ridges.
Step 6:Dip the lens in a clean isopropyl alcohol/water mixture (9 parts water to 1 part isopropyl
alcohol).
Step 7:Dry the smooth and ridged surfaces with an air gun. Make sure the air flow moves liquid
away from you.
Step 8:Inspect the lens for dirt. Repeat steps 3-7 if necessary.
Handle polymer lenses by their edges only. Never rub anything dry on a polymer
lens.
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Step 9:Set the lens back in the lens tube with the ridged side facing the front of the tube. Reinstall
the lens brackets.
Step 10: Slide the lens tube back into the barrel with gel frame retainer on top. Reinstall beam
focus knob.
Cleaning the reflector
WARNING:
To quickly clean the reflector, remove the lens tube and clean the dust from the reflector with a blast
of oil-free air. You may also wipe the reflector with a clean lint-free cloth. If either method is not
sufficient, follow these steps.
Step 1:To protect the lamp housing during cleaning, remove the lamp housing by loosening the
knurled bolt and pulling the housing straight out. See Figure 3.
Step 2:Remove the barrel rotation knob located at the bottom of the barrel (see Figure 1). Use
a Phillips screwdriver to remove the retainer bolt located on top of the reflector housing.
Step 3:Rotate the barrel 45° in either direction. Carefully remove the barrel from the reflector
housing.
Step 4:Remove dust with a blast of oil-free air or wipe with a clean, lint-free cloth. Isopropyl
alcohol, distilled water or a 50%-50% mixture of each can be used to clean the glass
surface.
Step 5:Insert the barrel into the reflector housing with the iris/pattern slot on top. Align the
triangles on both parts.
Step 6:While gently pressing in, rotate the barrel 45° clockwise until it sets into position, then
rotate the barrel counterclockwise 45°. The barrel should be firmly attached and the
triangles should be aligned.
Step 7:Reinstall the barrel rotation knob and tighten the retainer bolt.
Step 8:Reinstall the lamp housing and tighten the knurled bolt.
Unplug the fixture before attempting to clean the reflector.
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Corporate Headquarters
London, UK
Rome, IT
Unit 26-28, Victoria Industrial Estate, Victoria Road, London W3 6UU, UK Tel +44 (0)20 8896 1000 Fax +44 (0)20 8896 2000