INSTRUCTION MANUAL INFRARED HEADPHONE TRANSMISSION SYSTEMS Quality Cinema Products Ultra★Stereo Labs, Inc. • 181 Bonetti Drive San Luis Obispo, CA 93401 Telephone 805.549.0161 • FAX 805.549.0163 www.usl.com • e-mail usl@uslinc.
One Year Limited Warranty ◆◆◆◆◆ Ultra★Stereo Labs warrants that each product manufactured by it will be free from defects in material and workmanship under normal usage for a period of one year after its purchase new from an authorized dealer. Our obligation under this warranty is limited to repairing or replacing any product or component which we are satisfied does not conform with the foregoing warranty and which is returned to our factory, freight paid, or serviced by one of our authorized contractors.
INFRARED HEADPHONE TRANSMISSION SYSTEMS The Ultra★Phonic Infrared Headphone Transmission System is designed to provide intelligible, clear sound for your hearing-impaired customers. Meets CE Approval Standards TABLE OF CONTENTS UPC FEATURES ............................................................................................. 4 UPC-1/UPC-2 INSTALLATION ...................................................................... 5 UPC-1 with IRI-10 SPEAKER BIAMP BOARD .....................................
UPC FEATURES ® INFRARED HEADPHONE TRANSMISSION SYSTEM MODEL IRC-20 EMITTER/MODULATOR SYSTEM ® 5 INPUT LEVEL ADJUST 50 CLIP % POWER + – AC AC PANEL PANEL #2 #1 ULTRA★STEREO LABS, INC. • Tarzana, California IRM-20 MODULATOR 2 1 3 4 6 Fig. A – Rear view of the IRC-20 showing connections and indicators Fig. B – IRP-20 AC Power Pack 1. AUDIO INPUT TERMINALS The IRC-20 will accept an audio signal level from 100 mv to greater than 30 V rms. 2.
UPC-1/UPC-2 INSTALLATION UNPACK THE BOX AND VERIFY THAT ALL SHIPPING MATERIALS ARE PRESENT. There should be: FOR THE UPC-1 System Package ❏ One (1) System Manual ❏ One (1) IRC-20 Emitter/Modulator Unit ❏ One (1) IRP-20 AC Power Pack ❏ One (1) Mount Bracket ❏ Two (2) 10-32 X 5/8" machine screws for attaching the emitter to the mount bracket.
➤ CONNECT THE AUDIO INPUT LINE Connect the Center channel speaker terminals to the + and – (ground) audio input terminals on the IRC-20 as in Fig. C. If the center channel is bi-amped, you must construct a resistor network, as in Fig. D, that sums the high and low frequency signals, then feed the output of the network to the IRC-20 audio input. You also may connect the IRC-20 to the output of a monitor or a processor.
FOR THE UPC-2 (See Figure E) Connect one of the two IRP-20 AC Power Packs to the IRC-20 AC Panel #1 terminals, and the second IRP-20 to the AC Panel #2 terminals using standard 18-gauge or greater zip cord. (See Table 2 for lengths.) Make sure there are no loose wire strands that could touch any nearby metal and short the Power Pack. DO NOT SHORT THE POWER SUPPLY. Connect each Power Pack to a 115 V AC 50/60 Hz outlet.
➤ PRELIMINARY LEVEL SETTING If the system is to be used with a cinema sound system, simply run a standard optical track 50% modulation loop in the projector (e.g., Dolby® or Ultra★Stereo®). Then adjust the IRC-20 Input Level Adjust trimpot so that as the gain is increased, the green 50% LED just comes on. This is the center LED on the IRC-20.
60' APPROX. 25° Screen Ultra★Phonic UPC-1/2 Emitter / Modulator System Infrared Diode Output versus Time 14 0° LED OUTPUT 100% 90% 80% 84' 70% 60% 50 ° 50% t (years) 8 years* 16 years* 24 years* 32 years* * Expected LED output if operated 8 hours per day, 7 days per week, based on manufacturer's ratings. Fig. F – Front mounted emitter - top view ° 50 60' 80 Screen ° 50° A 80 ° 50 ° 84' Fig. G – Front mounted emitter - side view B 140° Fig.
UPC-1 with IRI-10 Speaker Biamp Board LEFT WOOFER + Use 4-40 x 3/8" Screws with 1/4" spacers underneath + LEFT HF HORN IRI-10 CENTER WOOFER ® + SPEAKER INPUTS INFRARED HEADPHONE TRANSMISSION SYSTEM MODEL IRC-20 EMITTER/MODULATOR SYSTEM – ® + CENTER HF HORN INPUT LEVEL ADJUST RED 50 CLIP % POWER + – RIGHT WOOFER + AC AC PANEL PANEL #2 #1 Ultra Phonic ★ ULTRA★STEREO LABS, INC.
FACTS ABOUT INFRARED TRANSMISSION SYSTEMS The UPC-1/UPC-2 Infrared Transmission Systems use light emitting diodes frequency modulated at 95 KHz, the international standard. All commercially available emitters and receivers will be compatible with this standard. The modulated waves radiate from the emitter panels primarily in straight lines. Depending on the lightness of the wall color, some of this energy may be reflected and bounce around the room. Infrared energy does not penetrate walls.
INFRARED HEADPHONE TRANSMISSION SYSTEMS Quality Cinema Products Ultra★Stereo Labs, Inc. • 181 Bonetti Drive San Luis Obispo, CA 93401 Telephone 805.549.0161 • FAX 805.549.0163 www.usl.com • e-mail usl@uslinc.
