User manual JBL ONSTM ADAPTATOR INSTRUCTIONS

[. . . ] Slots and openings on the case are provided for ventilation; to ensure reliable operation and prevent it from overheating, these openings must not be blocked or covered. To prevent shock or fire hazard, do not expose the unit to rain or moisture, or operate it where it will be exposed to water. Do not attempt to operate the unit if it has been dropped, damaged, exposed to liquids, or if it exhibits a distinct change in performance indicating the need for service. Removing covers will expose you to hazardous voltages. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This triangle, which appears on your component, alerts you to the presence of uninsulated, dangerous voltage inside the enclosure. . . voltage that may be sufficient to constitute a risk of shock. This triangle, which appears on your component, alerts you to important operating and maintenance instructions in this accompanying literature. Acknowledgements The SDP Series is manufactured under license from Dolby Laboratories Licensing Corporation. [. . . ] Additionally licensed under one or more of the following patents: U. S. numbers 3, 632, 886, 3, 746, 792 and 3, 959, 590; Canadian numbers 1, 004, 603 and 1, 037, 877. "Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. 2 1. BASIC OPERATION INTRODUCTION INTRODUCTION TO THE SDP-RFD AC-3®/RF DEMODULATOR 1 Congratulations on your purchase of the Synthesis SDP-RFD AC-3®/RF Demodulator. The SDP-RFD AC-3®/RF Demodulator is designed to interface between a laser disc player (with an AC-3®/RF Demodulator output), and any Dolby® Digital decoder which accepts a standard AC-3® signal (like our SDP-2). Because "AC-3® ready" laser disc players use a separate Radio Frequency (RF) modulated output to carry the Dolby® Digital information, special considerations must be made. While this type of transmission works perfectly well, our engineers were rightfully reluctant to inject line-level RF directly into the meticulously designed SDP-2. The SDP-RFD Demodulator keeps potential RF interference away from the sensitive preamp/processor stage while providing highly useful improvements in AC-3® signal quality. By placing the requisite demodulation circuitry in its own enclosure with dedicated power supplies and grounding, the potential to degrade digital-to-analog conversion and analog audio signals within the preamp/ processor is eliminated. The SDP-RFD Demodulator incorporates fully automated "intelligent" switching between S/PDIF and AC3®/RF inputs, meaning that any laser disc will be decoded to its maximum inherent quality. To set up the SDP-RFD: · Connect a 75 coaxial cable between the SDP-RFD rear panel RF (AC-3®) input and the laser disc player's RF/AC-3® output. Connect a 75 coaxial (or optical) cable between the SDP-RFD S/PDIF input and the laser disc player's digital output. Connect a 75 coaxial cable between the SDP-RFD S/PDIF output and the SDP-2 COAX 1 digital input. Recommended: Connect a 5-pin DIN cord (not supplied) between the SDP-RFD PWR CTL input and the SDP-2 PWR CTL output. If this connection is not made, the SDP-RFD will turn on whenever its AC adapter is supplied power. Optional: Connect any additional components which allow remote turn on (such as Synthesis' S Series of power amplifiers) to the SDP-RFD rear panel PWR CTL (LOOP THRU) connector. Once the SDP-RFD is properly connected, set the front panel INPUT SELECT switch for the appropriate type of NON-AC-3®/RF digital output you are using on your laser disc player. (Most laser disc players have only one. ) Set the RF TIMING switch according to the chart provided on page 2. Once you have completed the connections and setting of the front panel switches, all functions are performed automatically. [. . . ] (Most laser disc players have only one. ) Set the RF TIMING switch according to the chart provided on page 2. Once you have completed the connections and setting of the front panel switches, all functions are performed automatically. LEDs on the front panel are provided to identify the operational state. Maintenance The SDP-RFD requires no maintenance. However, it is good electrical practice to clean all connectors once a year. [. . . ]