Basic Assembly C-clamp mounting Yoke Pattern holder slot Lamp housing Drop-in iris slot cover Color frame Barrel retaining gel clip Gel frame Yoke locking knob Zoom rear focus knob Beam focus knob (Zoom front focus) Figure 1 W A R N I N G : Please note the following safety warnings before use: Do not mount the fixture on or near combustible surfaces.
H P L l a m p t a b l e C A U T I O N : 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.
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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. Gel Extenders are not recommended for 70° and 90° lens tubes due to the extremely wide-angle beam.
Improperly installed lamps cause premature lamp failure and socket problems. 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 Source Four jr / jr Zoom User Manual...
Beam focus knobs 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.
Slide the slot cover back toward the shutters until it meets the iris handle. Leave enough space to move the iris handle. Step 5: Secure the drop-in iris slot cover by tightening the screws. Source Four jr / jr Zoom User Manual...
A d j u s t i n g t h e y o k e p o s i t i o n The Source Four jr / jr Zoom provide multi-positioning capabilities within its yoke for overall fixture height and angle.
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Loosen the yoke locking knobs (see Figure 11). Do not remove them. Step 2: Tilt the fixture to the desired position. Step 3: Tighten the yoke locking knobs to secure in position. Source Four jr / jr Zoom User Manual...
Lens and Reflector S w i t c h i n g l e n s a s s e m b l i e s Follow these procedures to replace a fixed field lens with Zoom lens. Lens tray Light baffle and retaining screw Figure 12...
Replace lenses if they contain visible damage (cracks or deep scratches) that may impair their effectiveness. Step 1: Remove the lens assembly. See Source Four jr / jr Zoom Assembly Guide for lens removal instructions. 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.
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