Please note the following safety warnings before use:
Do not use this fixture with a damaged power lead. If the power lead
(cordset) is damaged, it must be replaced.
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 accessory door in the locked position.
Basic Assembly1
Lamp Information
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 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 750/120X75013016,4003,0500°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™
2Source Four Fresnel User Manual
Installing and Replacing the Lamp
Lamp door latch
Lamp door
A lamp must be installed before you use the fixture.
Figure-2 Lamp door on bottom of the fixture.
Note:
WARNING:
Step 1:Disconnect power to the fixture before installing or replacing the lamp.
Step 2:On the bottom of the fixture, turn the latch on the lamp door one-quarter turn and then
open the door.
Step 3:Remove the lamp holder assembly by turning the knurled knob counterclockwise to
release the lamp socket assembly.
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.
Unplug the fixture and allow it to cool down before attempting to change the
lamp.
Lamp Information3
Step 4:Twist the lamp socket assembly counterclockwise one quarter turn and remove from the
Lamp holder
assembly
Turn to
remove
INCORRECT
CORRECT
fixture.
CAUTION:
The socket assembly remains connected to the fixture by means of its electrical
leads. Do pull or place undue stress on the wired assembly.
Figure-3 Remove lamp with quarter turn counterclockwise.
Step 5:If replacing a lamp, carefully remove the old lamp from the lamp socket assembly.
Step 6:Holding the new HPL lamp by the base, remove it from its box.
CAUTION:
Use caution when installing or replacing any lamp.
When installing and 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.
.
Note:
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.
Step 7:Align the flat sides of the lamp base with the retention brackets on either side of the
socket in the lamp holder assembly as shown in Figure-3.
4Source Four Fresnel User Manual
Step 8: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 the top edges of the retention brackets.
CAUTION:
Step 9:Reinstall the lamp holder assembly into its socket in the fixture so that the arrow points
towards the “unlock” icon on the socket.
Step 10: Turn the lamp holder assembly clockwise one-quarter turn so that the arrow points to the
“lock” icon.
Step 11: Turn the knurled knob clockwise to secure the lamp holder assembly.
Step 12: Close the lamp housing door and turn the latch to secure the door.
Improperly installed lamps and lamp holder assemblies cause premature lamp
failure and socket problems.
Lamp Information5
Field Angle Adjustment
Locking lever
Field angle
adjustment knob
Focus knob in
flood
position
Focus knob in
spot
position
65° field angle
20° field angle
You can adjust the field angle of the fixture from 20 to 65° with the field angle adjustment knob.
Step 1:Lift the locking lever to unlock the field angle adjustment knob.
Figure-4 Field angle adjustment knob and locking lever.
CAUTION:
Step 2:Do one of the following.
The focus knob does not rotate 360°. Do not attempt to exceed limit.
•To reduce the field angle, turn the focus dial counterclockwise.
•To enlarge the field angle, turn the focus dial clockwise.
Step 3:To lock the focus dial, press the locking lever into place.
6Source Four Fresnel User Manual
Figure-5 Field Adjustment from flood to spot.
Accessory Holder
Accessory holder
locking door
Accessory
holder door
Accessory
Safety cables to
mounting position
Acceptable
Unacceptable
The accessory holder is equipped with two slots and a locking door that prevents color frames and
accessories from falling out.
Figure-6 Accessory holder door in the open position.
.
WARNING:
Make sure all color frames and accessories are locked in position with the
accessory door before hanging the fixture.
Accessories such as barn doors and color scrollers must be secured by
safety cable to the mounting position, such as batten, truss, or other secure
structure.
Fixture should never be oriented so that the weight of the accessories, such
as color scrollers or barn doors, rests against the accessory holder door.
Accessory Holder7
Figure-7 Fixture with accessories.
Step 1:Release the accessory holder door by pressing in on the latches located on each side of
Latch
Latch
Lift front to open
Accessory
slots
the door.
Figure-8 Accessory holder door releases.
Step 2:Insert the color frame or accessory.
Step 3:Press down on the two accessory door latches to lock the door in place.
Note:
Note:
Use only color frames or accessories with a 7.5 inch mounting flange.
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.
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.
8Source Four Fresnel User Manual
Yoke Balance Point Adjustment
Yoke locking
knob
Locking nut
Handle
The yoke mounting position can be adjusted on the fixture to accommodate varying weights of
different accessories. For example, move the yoke balance point forward (toward the lens) to
balance the additional weight of a color scroller and barndoor assembly in the accessory slot.
Step 1:Loosen the nuts on both sides of the yoke assembly, being sure to steady the fixture with
the handle on the rear of the unit.
Figure-9 Yoke balance and angle adjustment.
Step 2:Loosen the yoke locking knob so that the fixture moves freely.
Step 3:Slide the fixture back and forth until it is properly balanced.
Step 4:Tighten the yoke locking knob.
Step 5:Tighten the two nuts.
Fixture Angle Adjustment
The fixture can be tilted up and down to position the light where it is needed. Refer to Figure-9.
Step 1:On the side of the yoke, loosen the yoke locking knob, being sure to steady the fixture
with the handle on the rear of the unit.
Step 2:With the fixture turned on, use the handle tilt it to the desired angle.
Step 3:Tighten the yoke locking knob.
Yoke Balance Point Adjustment9
Replacing the Lens
Replace the lens if it becomes cracked or badly scratched.
CAUTION:
WARNING:
Never operate the fixture without a lens in place.
Unplug the fixture and allow it to cool down before attempting to change a
lens.
Removing the lens
Step 1:Place the fixture on a flat, stable work surface. Do Not remove or install the lens with
fixture hanging.
Step 2:Tilt the front of the fixture down at least 45°.
Step 3:Use a flat-blade screwdriver to slide the two plastic lens retaining clips on each side of
the lens outward to release the lens.
Figure-10 Lens retaining clip.
Step 4:Allow the top of the lens to drop forward from under the clips while using your hand to
prevent the lens from falling.
10Source Four Fresnel User Manual
Figure-11 Removing the lens.
Step 5:Carefully remove the lens.
Installing the lens
Note:
Step 1:Position the fixture with the front of the unit (lens side) facing you, and tilted slightly
Step 2:Hold the lens by the edge and position it so the stepped side faces the front of the fixture.
Note:
Step 3:From the top of the fixture, slide the lens into the lens retaining slot and then rotate the
top of the lens into place.
Step 4:Slide the plastic lens retaining clips on each side of the lens inward to secure the lens.
Refer to Figure-10.
Do not leave finger prints on the lens. Handle the lens with a soft, clean cloth.
upward.
The lens will not fit properly and will not function correctly if it is installed with the
stepped side facing the rear of the fixture.
Cleaning the Glass Lens and Reflector
WARNING:
Do not use ammonia-based or other harsh commercial cleaners. Clean lens
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.
Replace the lens if it contains visible damage such as cracks or deep scratches that may impair
their effectiveness.
The reflector is located behind the lamp. The lamp must be removed before cleaning the reflector.
Remove dust with a blast of oil-free air or wipe with a clean, lint-free cloth. Isopropyl alcohol, distilled
water or a 50% mixture of each can be used to clean the lens and reflector.
Replacing the Lens11
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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