Cat. No. 31-3042 Audio/Video Receiver STAV-3770 STAV-3770 AUDIO/VIDEO RECEIVER DOLBY SURROUND PRO LOGIC STANDBY DSP MODE DOLBY VIRTUAL VOLUME MEMORY FM MONO POWER CLASS DSP DIGITAL SIGNAL PROCESSOR STATION SELECT OSR LOUDNESS DOLBY PRO LOGIC TUNING DSP VCR TAPE 1 SELECT TAPE 2 DVD/LD CD FM/AM PHONO MONITOR TONE BALANCE DOWN LEFT UP RIGHT SPEAKER 4X100WATT EQUAL POWER OUTPUT PHONES MIN MAX Owner's Manual Please read before using this equipment. Introducing the Optimus STAV-3770 Your Optimus STAV-3770 Audio/Video Receiver is the perfect control center for your audio/video system. It combines 100 watts-per-channel of clean power with modern styling. And, it provides connections for one tape deck, one audio/ video source, one more tape deck or audio/video playback source, a turntable, a CD player, and a video monitor. Your receiver also has special sound options. Dolby Pro Logic` Surround Sound delivers movie theater sound for audio/video programs (especially those encoded with Dolby Surround Sound signals). Dolby 3CH Logic provides a wider sound field than ordinary playback. DSP Effects creates a listening environment that simulates a concert hall, jazz club, theater, or a dance hall. Dolby Virtual provides a three-dimensional sound field using only the front left and right speakers. Additional features include: Digital-Synthesized Tuner Precisely tunes to AM and FM stations. 30 Memory Locations Let you store and recall the frequencies for up to 30 AM/FM stations. Automatic Tuning Searches for the next available AM/FM station. Tape Monitoring Lets you listen to the actual recording as you record, if your tape deck has a tape-monitoring feature. Built-In Protection Circuits Automatically turn off the receiver to help avoid power surges or short circuit damage. Remote Control Lets you use a single remote control for the receiver and other compatible components connected to the receiver. Note: The remote control requires two AA batteries (not supplied). We recommend you record the receiver's serial number here. The number is on the receiver's back panel. Serial Number:_____________________________________________ Note to the Cable TV System Installer: This reminder is provided to call the CATV system installer's attention to Article 820-40 of the National Electrical Code that provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building as close to the point of cable entry as practical. Manufactured under license from Dolby Laboratories Licensing Corporation. Dolby, Pro Logic, and the double-D symbol ( ) are trademarks of Dolby Laboratories Licensing Corporation. © 1998 Tandy Corporation. All Rights Reserved. RadioShack and Optimus are registered trademarks used by Tandy Corporation. 2 IMPORTANT SAFETY INSTRUCTIONS This receiver is made and tested to meet exacting safety standards. It meets both UL and FCC requirements Careful attention is devoted to quality standards in the manufacture of your receiver, and safety is a major factor in its design. However, safety is also your responsibility. This section lists important information that will help you properly use and enjoy your receiver and accessories. Read all the included safety and operating instructions before using your receiver. Follow them closely, and retain them for future reference. Heed Warnings -- Follow all warnings on the product and in the operating instructions. Cleaning -- Unplug this product from the wall outlet before cleaning. Use only a damp cloth for cleaning. Do not use liquid or aerosol cleaners. Attachments -- Do not use attachments/accessories not recommended by the product manufacturer, as they might create a hazard. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. CAUTION RISK OF ELECTRIC SHOCK. DO NOT OPEN. Water and Moisture -- Do not use this product near water (for example, near a bathtub, washbowl, kitchen sink, or laundry tub; in a wet basement; or near a swimming pool). ! CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER OR BACK. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. This symbol is intended to alert you to the presence of uninsulated dangerous voltage within the system's enclosure that might be of sufficient magnitude to constitute a risk of electric shock. Do not open the system's case. This symbol is intended to inform you that important operating and maintenance instructions are included in the literature accompanying this system. Accessories -- Do not place this product on an unstable cart, stand, tripod, bracket, or table. The product may fall, causing serious injury to a child or adult, and serious damage to the product. Use only with a cart, stand, tripod, bracket, or table recommended by the manufacturer or sold with the product. Follow the manufacturer's instructions for mounting, and use a recommended mounting accessory. Carts -- Move the product on a cart carefully. Quick stops, excessive force, and uneven surfaces may cause the product/cart to overturn. Ventilation -- Slots and openings in the cabinet provide ventilation, ensure reliable operation, and protect from overheating. Do not block or cover these openings, and do not place the product on a bed, sofa, rug, or other similar surface. Do not place the product in a built-in bookcase or rack unless it provides proper ventilation as specified by the manufacturer. Power Sources -- Operate this product using only the power source indicated on its marking label. If you are not sure of your home's power type, consult your product dealer or local power company. Polarization -- This product is equipped with a polarized AC line plug (a plug having one blade wider than the other). This plug will fit in the power outlet only one way. This is a safety feature. If you cannot insert the plug fully into the outlet, try reversing the plug. If the plug still doesn't fit, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the polarized plug. If you need an extension, use a polarized cord. Power-Cord Protection -- Route power-supply cords so they are not likely to be walked on or pinched by items placed on or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the product. Lightning -- For added protection for this product during a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet and disconnect the antenna or cable system. This will prevent damage to the product due to lightning and power-line surges. Overloading -- Do not overload wall outlets, extension cords, or integral convenience receptacles, as this can result in a risk of fire or electric shock. Objects and Liquids -- Never push objects of any kind into this product through openings, as they may touch dangerous voltage points or short out parts that could result in a fire or electric shock. Never spill liquid of any kind on the product. Servicing -- Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel. Damage Requiring Service -- Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following conditions: · When the power-supply cord or plug is damaged. · If liquid has been spilled or objects have fallen into the product. · If the product has been exposed to rain or water. · If the product does not operate normally by following the operating instructions. Adjust only those controls that are covered by the operating instructions, as an improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the product to normal operation. · If the product has been dropped or damaged in any way. · When the product exhibits a distinct change in performance. Replacement Parts -- When replacement parts are required, be sure the service technician uses replacement parts specified by the manufacturer or having the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards. Safety Check -- Upon completion of service or repairs to this product, ask the service technician to perform safety checks to determine that the product is in proper operating condition. Wall or Ceiling Mount -- The product should be mounted to a wall or ceiling only as recommended by the manufacturer. Heat -- The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products (including amplifiers) that produce heat. ! CAUTION Power Lines--Locate an outdoor antenna away from power lines. Nonuse Periods--Unplug the receiver's power cord when you will not use it for extended periods. Outdoor Antenna Grounding--If an outside antenna or cable system is connected to the receiver, ground the antenna or cable system so as to provide some protection against voltage surges and built-up static charges. Article 810 of the National Electrical Code, ANSI/NFPA 80, provides information about proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antennadischarge unit, connection to grounding electrodes, and requirements for the grounding electrode. See the example below. Antenna Lead-In Wire Ground Clamp Antenna Discharge Unit (NEC Section 810-20) Grounding Conductors (NEC Section 810-21) Grounding Clamps Power Service Grounding Electrode System (NEC Article 250, Part H) Electric Service Equipment NEC -- National Electrical Code 3 Contents Preparing Your Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Positioning Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Connecting Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Connecting Program Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Connecting the Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Using One Remote Control for More than One Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Installing the Remote Control's Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Using the AC Power Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Connecting to AC Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Tuning the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Using FM MONO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Adjusting Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Using Headphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Muting the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Loudness Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Bypassing the Sound Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Cassette Deck/VCR Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...