Etc Source Four JR Zoom, Source Four JR User Manual

ETC User Manual

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

Source Four® jr / jr Zoom

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.

Corporate Headquarters  Middleton, Wisconsin, USA  Tel [phone]
Service (Americas)  [e-mail]
London, UK  Tel [phone]  Service: (UK) [e-mail]
Rome, IT  Tel [phone] Service: (UK) [e-mail]
Holzkirchen, DE  Tel [phone]  Service: (DE) [e-mail]
Hong Kong  Tel [phone]  Service: (Asia) [e-mail]
Web: etcconnect.com 
specifications subject to change. 
7062M1001  Rev D  Released 2016-11  Production dates: September 2004–present

© 2016 Electronic Theatre Controls, Inc. 

ETC intends this document to be provided in its entirety.

Product information and

ETC User Manual

Source Four jr / jr Zoom

Fixture information

HPL lamp table

CAUTION:

Lamp code Watts Volts Initial Lumen Color temp.

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™

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.

Average

rated life

Source Four jr / jr Zoom Page 2 of 12 ETC

ETC User Manual

Retaining

clip

Source Four jr / jr Zoom

Color frame holder

The color frame holder is
equipped with a spring-loaded
retaining clip that prevents
color frames and accessories
from falling out.

WARNING:

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.

Note:

Make sure all color frame accessories are locked in
position with the retaining clip before hanging the
Source Four.

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.

Source Four jr / jr Zoom Page 3 of 12 ETC

ETC User Manual

INCORRECT CORRECT

Source Four jr / jr Zoom

Replacing the HPL lamp

A lamp must be installed before you use the fixture.

Note:

WARNING:

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.

.

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 on 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.

Note:

Source Four jr / jr Zoom Page 4 of 12 ETC

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.

ETC User Manual

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

Source Four jr / jr Zoom

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.

Adjustments

Centering lamp and adjusting the field

CAUTION:

Improperly installed lamps cause premature lamp failure
and socket problems.

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.

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.

Source Four jr / jr Zoom Page 5 of 12 ETC

ETC User Manual

Flat field:

Best adjustment

Hot spot:

Lamp pulled out

too far

Field with hole:
Lamp pushed in

too far

Beam focus knobs

Source Four jr / jr Zoom

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).

Source Four jr / jr Zoom Page 6 of 12 ETC

ETC User Manual

M-Size

Pattern holder

Drop-in

iris slot

Iris

Pattern holder slot

Source Four jr / jr Zoom

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.

Source Four jr / jr Zoom Page 7 of 12 ETC

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.

ETC User Manual

E T C

C-clamp

Pipe bolt

Pan screw

Yoke bolt and
lockwasher

Yoke

Source Four jr / jr Zoom

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.

Source Four jr / jr Zoom Page 8 of 12 ETC

ETC User Manual

Low clearance positionGeneral use position

Yoke

locking knob

Yoke locking knob

Source Four jr / jr Zoom

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.

Source Four jr / jr Zoom Page 9 of 12 ETC

ETC User Manual

Lens tray

Light baffle and

retaining screw

Source Four jr / jr Zoom

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:

Source Four jr / jr Zoom Page 10 of 12 ETC

Reverse steps 1–6 to replace Zoom lens with a standard
lens.

ETC User Manual

Source Four jr / jr Zoom

Cleaning glass lens

WARNING:

Replace lenses if they contain visible damage (cracks or deep scratches) that
may impair their effectiveness.

1: Remove the lens assembly. See

Guide

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.
3: Reinstall the lens assembly.

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.

Source Four jr / jr Zoom Assembly

for lens removal instructions.

Source Four jr / jr Zoom Page 11 of 12 ETC

ETC User Manual

HPL lamp

Lamp retention clip

Knurled bolt

Lamp housing

Lamp retention

brackets

Source Four jr / jr Zoom

Cleaning the reflector

WARNING:

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.

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 below.

Unplug the fixture before attempting to clean the
reflector.

Do not use ammonia-based or other harsh commercial
cleaners. Clean 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.

2: Remove the lens. See

fixture disassembly/assembly instructions.

3: 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.
4: Reinstall the lamp housing and tighten the knurled bolt.
5: Reinstall the lens.

Source Four jr / jr Zoom Page 12 of 12 ETC

Source Four jr / jr Zoom Assembly Guide

for full