ETC Source Four jr User manual

ETC User Manual
Source Four®jr / jr Zoom
Corporate Headquarters  Middleton, Wisconsin, USA  Tel [phone]
Service (Americas)  [email protected]
London, UK  Tel [phone]  Service: (UK) [email protected]
Rome, IT  Tel [phone]  Service: (UK) [email protected]
Holzkirchen, DE  Tel [phone]  Service: (DE) [email protected]
Hong Kong  Tel [phone]  Service: (Asia) [email protected]
Web: etcconnect.com  © 2016 Electronic Theatre Controls, Inc.  Product information and
specifications subject to change.  ETC intends this document to be provided in its entirety.
7062M1001  Rev D  Released 2016-11  Production dates: September 2004–present
Basic Assembly
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 colour frame
retaining clip in the locked position.
Lamp
housing
C-clamp mounting
Barrel
Drop-in
iris slot
cover
Pattern
holder
slot
Gel frame
holder
Zoom rear focus knob
Beam focus knob
(Zoom front focus)
Yoke
Yoke locking knob
Color
frame
retaining
gel clip

ETC User Manual
Source Four jr / jr Zoom
Source Four jr / jr Zoom Page 2 of 12 ETC
Fixture information
HPL lamp table
CAUTION:
The Source Four jr is rated for 575W maximum lamp. Do
not use lamps other than the HPL in Source Four fixtures.
Use of lamps other than HPL or greater than 575W will
void your warranty.
Lamp code Watts Volts Initial Lumen Color temp. Average
rated life
HPL 550/77* 550 77 16,170 3,250° 300 hours
HPL 550/77X* 550 77 12,160 3,050° 2000 hours
HPL 575/115 575 115 16,520 3,250°K 300 hours
HPL 575/115X 575 115 12,360 3,050°K 2000 hours
HPL 375/115 375 115 10,540 3,250°K 300 hours
HPL 375/115X 375 115 8,000 3,050°K 1000 hours
HPL 575/120 575 120 16,520 3,250°K 300 hours
HPL 575/120X 575 120 12,360 3,050°K 2000 hours
HPL 575/230 575 230 14,900 3,200°K 400 hours
HPL 575/230X 575 230 11,780 3,050°K 1500 hours
HPL 375/230X 375 230 7,250 3,000°K 1000 hours
HPL 575/240 575 240 14,900 3,050°K 400 hours
HPL 575/240X 575 240 11,780 3,050°K 1500 hours
HPL 375/240X 375 240 7,250 3,000°K 1000 hours
* To be used with ETC Dimmer Doubler™

ETC User Manual
Source Four jr / jr Zoom
Source Four jr / jr Zoom Page 3 of 12 ETC
Color frame holder
The color frame holder is
equipped with a spring-loaded
retaining clip that prevents
color frames and accessories
from falling out.
1: Release the retaining clip by pushing it sideways while gently pulling
backwards.
2: Insert the color frame.
3: Lock the retaining clip by pushing sideways while gently pushing
forward.
WARNING:
Make sure all color frame accessories are locked in
position with the retaining clip before hanging the
Source Four.
Note:
The performance of saturated colors may be less than
desirable in any theatrical lighting fixture. For best
results, always use high-quality color media rated for
high-temperature use.
ETC’s optional Conical Gel Extender (part number
7060A1048) will provide maximum color media life. 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.
Retaining
clip

ETC User Manual
Source Four jr / jr Zoom
Source Four jr / jr Zoom Page 4 of 12 ETC
Replacing the HPL lamp
A lamp must be installed before you use the fixture.
1: Disconnect power to the fixture before installing the lamp.
2: Loosen the knurled bolt on the back of the lamp housing and pull the
housing out.
3: Holding by the base, remove the HPL lamp from its box.
.
Note:
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 on page 2.
Operating HPL lamps above their rated voltage reduces
lamp life and can cause premature lamp failure.
WARNING:
Let the lamp cool before replacing.
CAUTION:
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.
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.
INCORRECT CORRECT

ETC User Manual
Source Four jr / jr Zoom
Source Four jr / jr Zoom Page 5 of 12 ETC
4: Align the flat sides of the lamp base with the retention brackets on
either side of the socket as shown below.
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 the top
edges of the retention brackets.
6: Press lamp retaining clip across lamp base to secure.
7: Reinstall the lamp housing by aligning the bolt hole and tightening the
knurled bolt.
Adjustments
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
at right. The outer knob centers the
lamp within the reflector. The inner
knob adjusts the lamp’s field.
1: Turn on the fixture and aim it at
a flat surface. Adjust the barrel
to create a hard edge.
2: Unlock and loosen the outer
knob by turning it
counterclockwise.
3: Gently move the outer knob
from side to side and up and
down until the lamp is centered
within the reflector.
CAUTION:
Improperly installed lamps cause premature lamp failure
and socket problems.
HPL lamp
Lamp retention clip
Knurled bolt
Lamp housing
Lamp retention
brackets
Outer Knob: Lamp
center adjustment
Inner Knob:
Peak/flat field
adjustment
Rear lamp
housing

ETC User Manual
Source Four jr / jr Zoom
Source Four jr / jr Zoom Page 6 of 12 ETC
4: Once the lamp is centered, turn the outer knob clockwise to lock it in
place.
5: Finally, turn the inner knob either clockwise or counterclockwise to
achieve an optimum flat field. See figure below.
Focusing the beam
On a fixed field angle Source Four jr with a 26°, 36° or 50° lens, adjust the
lens single beam focus knob to focus the edge of the beam. On a Source Four
jr Zoom, adjust the position of both lens beam focus knobs to set the beam’s
spread and to focus the edge of the beam. The Zoom lens provides a range
from 25° to 50°.
1: Loosen the beam focus
knob(s) on the underside of
the barrel as shown at right.
2: Slide the lens(es) forward or
backward to achieve the
desired beam edge.
3: Once the fixture is focused,
tighten the beam focus
knob(s).
Flat field:
Best adjustment
Hot spot:
Lamp pulled out
too far
Field with hole:
Lamp pushed in
too far
Beam focus knobs

ETC User Manual
Source Four jr / jr Zoom
Source Four jr / jr Zoom Page 7 of 12 ETC
Shaping the beam
The beam can be shaped using the shutters, a
pattern, or an optional drop-in iris.
Pattern Projection
The pattern holder slot is on the top side of the barrel
and in front of the shutters. It accommodates an
M-size pattern holder (see figure at right). The
pattern holder handle can be bent away from the
shutter handle to keep it from interfering with the
action of the shutter handle.
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 below).
1: Use a Phillips screwdriver to loosen the screws on the drop-in iris slot
cover. Do not remove screws.
2: Slide the cover completely forward to expose the slot.
3: Insert the iris with the flat side toward the shutters and make sure the
iris handle extends from the slot.
4: Slide the slot cover back toward the shutters until it meets the iris
handle. Leave enough space to move the iris handle.
5: Secure the drop-in iris slot cover by tightening the screws.
M-Size
Pattern holder
Drop-in
iris slot
Iris
Pattern holder slot

ETC User Manual
Source Four jr / jr Zoom
Source Four jr / jr Zoom Page 8 of 12 ETC
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 at
right).
1: Tightly fasten the
C-clamp to the yoke
with the provided
yoke bolt and lock
washer.
2: Place the C-clamp on
mounting pipe, and then tighten the pipe bolt to secure it.
3: Loosen the C-clamp pan screw and rotate the yoke to the desired
position.
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.
ET C
C-clamp
Pipe bolt
Pan screw
Yoke bolt and
lockwasher
Yoke

ETC User Manual
Source Four jr / jr Zoom
Source Four jr / jr Zoom Page 9 of 12 ETC
Adjusting the yoke position
The Source Four jr / jr Zoom provides multi-positioning capabilities within its
yoke for overall fixture height and angle.
Setting the fixture height within the yoke
The fixture is equipped with a two-position yoke for modifying the overall
height in which the fixture is mounted (see figure below). To change the
height position, perform the following steps.
1: Remove the yoke locking knobs, washers, and hex bolts from either
side of the fixture.
2: Raise or lower the fixture to the desired position within the yoke.
3: Reinstall the yoke’s hex bolts, washers, and locking knobs.
4: Tighten the yoke knobs to secure in position.
Setting the angle within
the yoke
1: Loosen the yoke locking
knobs (see figure at
right). Do not remove
them.
2: Tilt the fixture to the
desired position.
3: Tighten the yoke locking
knobs to secure in
position.
Low clearance positionGeneral use position
Yoke
locking knob
Yoke locking knob

ETC User Manual
Source Four jr / jr Zoom
Source Four jr / jr Zoom Page 10 of 12 ETC
Lens and Reflector
Switching lens assemblies
Follow these procedures to replace
a fixed field lens with Zoom lens.
1: Loosen the screw at the
front of the baffle. See
figure at right.
2: Pull the light baffle out of
the barrel.
3: Remove the beam focus
knob from the bottom of
the barrel and slide the lens assembly from the barrel.
4: Slide the Zoom lens rear assembly into the barrel and install its beam
focus knob.
5: Slide the Zoom lens front assembly into the barrel and install its beam
focus knob.
6: Reinstall the light baffle and secure it with the retaining screw.
Note:
Reverse steps 1–6 to replace Zoom lens with a standard
lens.
Lens tray
Light baffle and
retaining screw