User manual RADIOSHACK STAV-3770

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Using the VCR/TAPE 1 and TAPE 2 MONITOR Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Monitoring a Program Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Dubbing a Cassette Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Playing and Recording Video Tapes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Using Advanced Sound Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Sound Mode Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Listening Position for the Dolby Virtual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Using the Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 The FCC Wants You to Know . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Index to Features by Control Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 4 Preparing Your Receiver Caution: Make all the necessary connections before you plug in or turn on the receiver. Positioning Speakers L b b a a R Halfway Point Midway Speake BetweenPoint Between Speakers a=b a=b Where you place your speakers (not supplied) can make a noticeable difference in your system's sound. The guidelines in this section will help you choose the best locations. After you use your receiver for a while, you might want to try different locations for your speakers. Bass response depends largely on speaker location. For strong bass, place the speakers in the corners of the room. If you want even stronger bass, place the speakers directly on the floor. If the bass is too strong, move the speakers slightly away from the corners of the room, or raise them 6 to 18 inches off the floor. You can buy speaker stands at your local RadioShack store. The distance between the speakers should be about the same as the distance between the normal listening point and the point halfway between the speakers. If you place the speakers too close together, you reduce the stereo separation. If you place them too far apart, you reduce the bass effect and create a hole in the middle of the sound. Most speakers have a tweeter dispersion angle of about 60 degrees. Ideally, your listening position should be just inside the overlap area of the tweeter dispersion. You can angle the speakers toward you for better stereo effect. To position your speakers for surround sound, place the front speakers at the front of your listening area, and place the (rear) surround speakers behind or to the sides of the listening point (see "Using Advanced Sound Options" on Page 21). Also, place the center speaker above, below, or behind the TV. Sound might not appear to coincide with the picture if you place it beside the TV. Normal Listening Point Person in Listening Area · Surround speakers generally sound best if you position them above ear level. · To avoid interference with the picture on a nearby TV, use magnetically shielded speaker systems. This is particularly important for the center speaker since it is usually located closest to the TV. TV Front Left Speaker Center Speaker Front Front Right Speaker Listening Area Rear Left Speaker Rear Rear Right Speaker 5 Preparing Your Receiver Connecting Speakers Follow these guidelines when you select and connect speakers. · Only connect speakers that are rated at between 8 and 16 Ohms. · Be sure you properly connect all speakers. · Do not connect two pairs of speakers to a single set of terminals at the same time. · Realistic, Optimus, and other highquality speakers have color-coded speaker terminals (red for positive polarity and black for negative polarity). Use these color-coded terminals as a guide to help you properly connect the speakers to the receiver. · Use 16-gauge (or larger) speaker wire for all speaker connections, and consider possible speaker locations before you decide how much speaker wire you need. Conductor Speaker Wire WireWire Strands Strands Conductor Conductor Preparing the Speaker Wires Speaker wire consists of two conductors (individual wires) encased in insulation and is usually color-coded or marked with a ridge along one side so you can identify each conductor. Use these markings as a guide to help you properly connect the speakers to your receiver. Follow these steps to prepare the speaker wires. Wire Strand Wire Strands 1. Cut the speaker wires to the necessary length. 2. Separate the wires about 4 inches on each end. 3. Using a wire stripper, carefully strip about 3/4 inch of insulation from the end of each conductor. 4. Twist the end of each conductor to secure any loose wire strands. 6 Preparing Your Receiver Right Front Speakers Center Speaker Left AUDIO IN FRONT SPEAKERS SUB WOOFER R L CAUTION: SPEAKER IMPEDANCE 8 ~ 16 / SPEAKER Amplified Subwoofer PRE OUT R L CENTER SPEAKER SURROUND SPEAKERS R L Right Surround Speakers Left Connecting the Front Speakers Note: Be sure you connect the receiver's right and left positive (+) and negative (­) terminals to the speaker's corresponding right and left positive (+) and negative (­) terminals. Follow these steps to connect the right speaker to the receiver's right FRONT SPEAKERS terminals. 1. Press open the receiver's FRONT SPEAKERS R (+) red lever and insert the ridged or color-coded conductor's end into the small hole. Press the lever closed to secure the conductor. 2. Press open the receiver's FRONT SPEAKERS R (­) black lever and insert the other conductor's end into the small hole. Press the lever closed to secure the conductor. 3. Connect the ridged or color-coded conductor's loose end to the right speaker's positive (+) terminal. 4. Connect the remaining loose conductor to the right speaker's negative (­) terminal. Repeat Steps 1­4 to connect the left speaker to the receiver's FRONT SPEAKERS left terminals. 7 Preparing Your Receiver Connecting Surround-Sound Speakers You can connect a pair of speakers to the receiver for surround-sound programs. Follow the steps in "Connecting the Front Speakers" to connect the speakers to the SURROUND SPEAKERS terminals. Connecting the Center Speaker The center speaker gives additional ambience to surround sound. Follow the steps in "Connecting the Front Speakers" to connect the center speaker to the CENTER SPEAKER terminals. Connecting a Subwoofer Amplifier Your receiver includes a line-level subwoofer output. Connecting a subwoofer to your system dramatically extends bass response for incredible richness and depth. When you listen to surround-sound programs, a subwoofer enhances your home theater experience by realistically re-creating the rumble of an earthquake, the bone-jarring percussion of a cannon, and more. To use the subwoofer output, simply connect SUBWOOFER PRE OUT to an amplified subwoofer's line-level input or to an amplifier to which you have connected a subwoofer. RadioShack stores sell a variety of suitable subwoofers and amplifiers. 8 Preparing Your Receiver Connecting Program Sources You can connect up to five external program sources to your receiver. VIDEO OUT CONTROL TO MONITOR TV VIDEO OUT SUB WOOFER OUT VIDEO IN IN PLAY OUT REC VIDEO IN IN PLAY PRE OUT OUT REC IN L R IN IN L L R PHONO SIGNAL GND L R TAPE2 MONITOR R L CD DVD/ LD L VCR/ TAPE1 L R R R R REC REC INPUT L R L LINE PLAY L R PLAY OUTPUT OUT PUT L R CD Turntable Cassette Deck CD Player Connecting a Turntable Note: Use shielded audio cables with phono connectors for all audio connections. Connect a turntable with a magnetic cartridge only. Some older turntables use a ceramic-type cartridge that does not work with this system. Connect the turntable's left and right cables to the receiver's L (left) and R (right) PHONO IN jacks. Then connect the turntable's ground wire to the receiver's SIGNAL GND terminal. Connecting a CD Player To connect a CD player to the receiver, connect the CD player's left and right output jacks to the receiver's L and R CD IN jacks. Connecting Cassette Decks Note: If you place the cassette deck directly above, below, or to the left of the receiver, the receiver could interfere with the cassette deck's operation. If possible, position the cassette deck to the right or away from the receiver. You can connect cassette decks to the VCR/TAPE 1 and TAPE 2 MONITOR jacks. Connect the cassette deck's output jacks to the VCR/TAPE 1 IN PLAY or TAPE 2 MONITOR IN PLAY jacks, and connect the cassette deck's input jacks to the VCR/ TAPE 1 OUT REC or TAPE 2 MONITOR OUT REC jacks. You can connect a third cassette deck (for playback only) to the DVD/LD IN (audio) jacks. 9 Preparing Your Receiver VIDEO OUT CONTROL TO MONITOR TV VIDEO OUT SUB WOOFER OUT VIDEO IN IN PLAY OUT REC VIDEO IN IN PLAY PRE OUT OUT REC IN IN IN L L R PHONO SIGNAL GND TAPE2 MONITOR CD DVD/ LD VCR/ TAPE1 R v V V V AUDIO OUT VIDEO IN VIDEO OUT VIDEO AUDIO REC PLAY L R REC INPUT L R PLAY OUTPUT OUT IN VCR TV Monitor DVD/LD Player VCR Connecting Video Sources Note: If your VCR is monaural, use a Yadapter (available at your local RadioShack store) to connect the VCR's audio output to both the L and R audio inputs on the receiver. If you connect two video sources, such as VCRs, laser disc (LD) players, or digital video disc (DVD) players to your receiver, you can use the receiver to select each video source. You can also use the receiver to easily record from these video sources to the source connected to VCR/TAPE 1. Connect phono cables from each video source's audio outputs to the receiver's VCR/TAPE 1 IN PLAY or DVD/LD IN jacks. Then connect phono cables from the receiver's VCR/TAPE 1 OUT REC jacks to the source's audio input jacks. Connect video cables from each video source's video outputs to the receiver's VCR/TAPE 1 or DVD/LD VIDEO IN jacks. Then connect video cables from the receiver's VCR/TAPE 1 VIDEO OUT jack to the source's video input. Connecting a Video Monitor The monitor (or TV with baseband video input) you connect to the VIDEO OUT terminal can monitor any program you connect to the receiver's VCR/TAPE 1 IN PLAY or DVD/LD IN jacks. Connect a video cable from the receiver's VIDEO OUT TO MONITOR TV jack to the monitor's video input. 10 V R L L L R R R L V L R V L R V Preparing Your Receiver Connecting the Antennas In many areas, the supplied indoor AM loop and FM antennas provide satisfactory reception. AM Antennas Assemble the supplied AM antenna's base by swinging the base in the direction of the arrow and inserting the antenna's bottom tabs into the base's slot. If the receiver is in a rack or on a shelf and there is no room for the AM loop antenna, use two screws (not supplied) to mount the base on the wall or another location as shown. Attach the antenna wires to the AM LOOP ANTENNA and (upper two terminals). (ground) terminals Place the antenna on a flat surface and rotate it for the best AM reception. Notes: · Keep the AM loop antenna connected even when you use another indoor antenna or an outdoor AM antenna. LOOP ANTENNA AM Loop Antenna AM ANTENN · Ensure that the antenna does not touch the receiver or any other metal object. · Do not place the antenna near a CD player, a personal computer, or a TV set. · If the wire between your AM loop antenna and receiver is too short, you can add extra wire, available at your local RadioShack store. You can also use a RadioShack shortwave antenna kit (Cat. No. 278-758), which makes an excellent outdoor AM antenna. Connect the outdoor AM antenna wire to the receiver's AM terminal, as shown. FM UNBAL 75 Outdoor AM Antenna LOOP ANTENNA AM Loop Antenna AM ANTENN FM UNBAL 75 FM Antennas Note: For the best results, use 75-ohm coaxial cable to connect an outdoor antenna to the receiver. Connect the supplied FM antenna to the FM UNBAL 75 terminal as shown, then extend it. For better FM reception, you can also use a rabbit-ear TV antenna (for indoor use only). To connect the TV antenna to the receiver, you need a VHF/UHF/FM splitter (not included). RadioShack stores carry a full line of quality antennas and antenna connection accessories. LOOP ANTENNA AM ANTENN FM UNBAL 75 11 Preparing Your Receiver Warning: To prevent injury, read and follow all cautions and warnings that accompany the outdoor antenna. For the best radio reception, use an outdoor antenna. Follow these steps to connect an outdoor FM antenna to the receiver using 75 coaxial cable. Note: If your antenna has 300 twin-lead cable, consult your local RadioShack store for the correct adapter. 1. Disconnect the supplied FM antenna from the receiver's FM UNBAL 75 terminal. 2. With a stripping tool, remove about 1 1/2 inches of the outdoor antenna cable's outer insulation to expose the cable's shielding. 3. Fold back the shielding from the inner insulation. 4. Remove about 1 inch of the inner insulation from around the center wire. Inner Insulation Outer Insulation Center Wire Shielding Caution: The cable's shielding should only touch the terminal. 5. Pull the shielding to one side. Connect the center wire to the receiver's FM UNBAL 75 terminal. Twist the shielding to secure any loose wire strands, and connect it to the FM UNBAL 75 terminal. Outdoor FM Antenna LOOP ANTENNA AM ANTENN Shielding FM UNBAL 75 Center Wire Note: Grounding is not necessary for reception, but we recommend it for better FM reception and to avoid damage from lightning when you use an outdoor FM antenna. Use a separate piece of thick polyvinyl insulated wire to connect the terminal to the building's power service grounding electrode system. Warning: Never connect a wire to a gas pipe for grounding since sparks might ignite the gas. 12 Preparing Your Receiver Using One Remote Control for More than One Unit Note: When you plug the cable into a component's CONTROL IN jack, that component's remote sensor does not function. If you also have an Optimus professional series CD player, VCR, or cassette deck with the OSR mark ( ), you can connect its CONTROL IN jack to the receiver so you can control all of your equipment with a single remote control. You can also use the other component's remote control by pointing it at the receiver's front panel. 1. Connect each component to the receiver as shown in "Connecting Program Sources" on Page 9. Note: You must connect the audio cables between the receiver and the other audio accessory to use your receiver's remote control to control th e accessory. 2. Connect the cable supplied with the CD player, VCR, or cassette deck to the receiver's CONTROL OUT jack and the other component's CONTROL IN jack. 3. When you want to control more than one other component using the receiver's remote control, daisy-chain the CONTROL OUT and CONTROL IN connections as shown. CONTROL CONTROL OUT IN OUT Receiver Other Component with OSR Mark To the CONTROL IN Jack of Another Component Having the OSR Mark Remote Control Installing the Remote Control's Batteries The remote control uses two AA batteries (not included). For the longest battery life, we recommend alkaline batteries (such as RadioShack Cat. No. 23-557). Cautions: · Use only fresh batteries of the required size and recommended type. · Always remove old or weak batteries. Batteries can leak chemicals that can damage electronic circuits. Note: If the remote's range is reduced, replace the batteries. 1. Press and slide open the battery compartment cover. 2. Place two fresh AA batteries in the compartment as indicated by the polarity symbols (+ and ­) marked in the compartment. 3. Replace the battery compartment cover. 13 Preparing Your Receiver Using the AC Power Outlet Caution: Do not connect appliances with high power consumption, such as a heater, iron, monitor, or TV, to this AC outlet. Doing so can cause a risk of overheating and fire, and could damage the receiver. Your receiver has an AC power outlet that you can use to power an electronic device, such as a turntable, cassette deck, VCR, and so on. This switched outlet turns on and off with the receiver and provides a maximum of 100 Watts. FRONT SPEAKERS B FER R L CAUTION: SPEAKER IMPEDANCE 8 ~ 16 / SPEAKER AC OUTLET AC 120V 60Hz R L CAUTION: DO NOT CONNECT TV SET OR MONITOR. SWITCHED CENTER SPEAKER SURROUND SPEAKERS 100W MAX 0.8A MAX R L Connecting to AC Power Warning: To prevent electric shock, do not use this polarized plug with an extension cord, receptacle, or other outlet unless you can fully insert the blades to prevent blade exposure. Before you plug in the receiver's power cord, double check all other connections. To power the receiver, plug the supplied power cord into a standard AC outlet. The power cord's plug is polarized and fits only one way. FRONT SPEAKERS R L CAUTION: SPEAKER IMPEDANCE 8 ~ 16 / SPEAKER AC OUTLET AC 120V 60Hz R L CAUTION: DO NOT CONNECT TV SET OR MONITOR. SWITCHED CENTER SPEAKER SURROUND SPEAKERS 100W MAX 0.8A MAX R L 14 Basic Operation Warning: To prevent possible hearing loss, turn VOLUME to MIN before you turn on the receiver or change the program sources. After you turn on the receiver or change the program source, adjust VOLUME to a comfortable listening level. The controls on the remote control work the same as the buttons on the receiver's front panel, though some are labeled differently. Follow these steps to use the receiver. 1. Press POWER to turn on the receiver's power. It takes about 5 seconds to begin hearing sound. 2. Press SPEAKER on the left front of the receiver (if necessary) so SP appears on the upper left portion of the display. 3. Select a program source. To tune to a radio station, see "Tuning the Radio" on Page 16. A Note: If you select a source while TAPE 2 MONITOR is engaged, TAPE 2 flashes five times on the display, reminding you to disengage the TAPE 2 MONITOR function. To listen to signals from the component connected to TAPE 2 MONITOR, press TAPE 2 MONITOR so TAPE 2 appears on the display. To listen to a source other than one connected to TAPE 2 MONITOR, be sure TAPE 2 does not show on the display. If necessary, press TAPE 2 MONITOR so TAPE 2 disappears. Then press VCR/TAPE 1, DVD/LD (digital video disc/ laser disc), CD, AM/FM (tuner), or PHONO, or repeatedly press FUNC on the remote control, to display the desired program source. 4. Adjust VOLUME clockwise to increase the volume or counterclockwise to decrease it. Or, you can use MASTER VOLUME ­/+ on the remote control. 5. Adjust the bass, treble, or balance to suit your listening preference. Repeatedly press TONE/BALANCE on the front of the receiver until the item you want to adjust appears on the display -- TREB., BASS, or BALANCE. Then press DOWN/LEFT or UP/RIGHT until you get the desired sound. For more detail on adjusting the sound balance, see "Adjusting Balance" on Page 17. 6. When you finish using the receiver, press POWER to turn it off. Note: To find out what a particular button or control is used for, see Page 24 (for the remote control) or Page 31 (for the front panel) to find the page where the button or control is described. 15 Basic Operation Tuning the Radio Your receiver has four types of electronic tuning -- manual, automatic, direct access, and memory. Manual and Automatic Tuning Note: For weak signals, we recommend manual tuning. Follow these steps to manually or automatically tune to stations. Hint: If none of the tuning buttons on the remote control operate, press TUNER first. 1. Press FM/AM (BAND on the remote control) to select the tuner. Then press FM/AM (BAND) again to select the desired band. The receiver tunes to and displays the frequency last selected in that band. If A, B, or C and a single digit number appear to the left of the station frequency, press SELECT (BAND on the remote control) so the band name (AM or FM) appears. 2. To manually select the next lower or higher frequency, press TUNING ( FREQ on the remote control) once to manually select the next lower or higher frequency. Or, hold down the button to rapidly change frequencies, and release it. To automatically search for the next lower or higher station, hold down ( FREQ on the remote control) until the display starts to change, then release it. The receiver searches down or up the band to the next strong station. Notes: · · TUNING TUNED appears when you receive a strong signal. If you press TUNING at the top of the frequency range or TUNING at the bottom of the frequency range, the display returns to the other end of the range. Direct Access Tuning (Remote Control Only) Follow these steps to directly enter a frequency. 1. Press FM/AM (BAND on the remote control) to select the tuner. Then press FM/AM (BAND) again to select the desired band. The receiver tunes to and displays the frequency last selected in that band. 2. Press DIRECT ACCESS. _ _ with the first _ _ flashing. __ __ _ _ appears on the display 3. Enter the desired frequency using the number buttons. Notes: · If you enter an invalid frequency (for example, entering 828), the receiver tunes to the closest valid frequency (830 kHz). · If you do not press a key within 5 seconds, the receiver exits direct access tuning. Start over at Step2. 16 Basic Operation Memory Tuning Note: A class is a group of up to 10 station frequencies. Memory tuning lets you store up to 30 AM or FM frequencies in three different classes (10 frequencies in each class), then quickly tune to a class and station. Follow these steps to store a station in a memory location using the front panel controls. (You cannot store a station in a memory using the remote control) 1. Press FM/AM to select the tuner, then press FM/AM again to select the desired band. Notes: · If you store a frequency in a memory that already contains a frequency, you replace the previous frequency. · If your receiver is disconnected from AC power for several days, it loses all the stored frequencies. 2. Tune to the frequency you want to store. If desired, press FM MONO for FM stereo or monaural sound (see "Using FM MONO"). This setting is also stored in memory. 3. Press MEMORY. The class (A, B, or C) and _ _ (for the channel number) flash on the display for about 5 seconds. 4. Press CLASS until the class you want (A, B, or C) appears, then press STATION or until the channel number you want appears. In about five seconds, the class and channel number light steadily, indicating the receiver stored the frequency. To tune to a stored station, press CLASS so the desired class number appears, then repeatedly press STATION or to select the channel. Or, you can directly enter the channel number using that number's key on the remote control. Using FM MONO To receive FM stations in stereo, press FM MONO so MONO disappears from the display. STEREO appears when you receive an FM broadcast in stereo. You can improve the reception of weak FM stations by pressing FM MONO until MONO appears. This reduces noise while you listen to a weak FM station, but you get monaural instead of stereo sound. Adjusting Balance The TONE/BALANCE control lets you adjust the sound balance between the left and right speakers. If you properly position the speakers and your listening area is centered between them, the center control setting is usually best (see "Positioning Speakers" on Page 5). For an unusual speaker placement, adjust the speaker balance as follows: 1. Press FM/AM to select the tuner, then press FM/AM again to select the FM band. 2. Press FM MONO so MONO appears. The sound is monaural instead of stereo, so each speaker delivers the same output. 3. Repeatedly press TONE/BALANCE on the front of the receiver until BALANCE appears. Then press DOWN/LEFT or UP/RIGHT until you hear the sound coming equally from each speaker when you are in the listening area. 4. Press FM MONO so MONO disappears from the display. 17 Basic Operation Using Headphones To listen with headphones (not supplied), insert the headphones' 1/4-inch plug into the receiver's front panel PHONES jack. To silence the speakers and listen with headphones without disturbing others, press SPEAKER so only SP appears on the display. Listening Safely To protect your hearing, note the following when using headphones. · Set the volume to its lowest setting before you begin listening. After you begin listening, adjust the volume to a comfortable level. · Do not listen at extremely high volume levels. Extended highvolume listening can lead to permanent hearing loss. · Once you set the volume, do not increase it. Over time, your ears adapt to the volume level, so a volume level that does not cause discomfort might still damage your hearing. Muting the Receiver Loudness Control To temporarily mute the sound, press MUTING on the remote control. --MUTING -- appears. Press MUTING again to restore the audio level. To increase the high and low ranges of sounds for improved audio at a low listening level, press LOUDNESS (or LOUD on the remote control) so LOUDNESS appears. Press LOUDNESS (or LOUD) again to turn off this feature. To bypass your receiver's sound controls (BASS, TREBLE, BALANCE, or any special sound options) so you can hear the audio at its original tonal quality (for example), press DIRECT on the remote control so DIRECT appears. Press DIRECT again to turn off this feature. Note: When you turn off the bypass feature, you will have to reselect any desired special sound options (see "Using Advanced Sound Options" on Page 21). Bypassing the Sound Controls (Remote Control Only) 18 Cassette Deck/VCR Features You can connect two cassette decks to the receiver. Selecting either VCR/TAPE 1 or TAPE 2 MONITOR lets you hear the playback from the cassette deck you connected to the receiver's corresponding (VCR/TAPE 1or TAPE 2 MONITOR) jacks. Using the VCR/TAPE 1 and TAPE 2 MONITOR Buttons Press VCR/TAPE 1. VCR appears on the display. You hear the playback from the cassette deck or VCR you connected to the receiver's VCR/TAPE 1 IN jacks. Press TAPE 2 MONITOR. TAPE 2 appears on the display along with the last program source you selected. You can hear playback or monitor a recording from the cassette deck you connected to the receiver's TAPE 2 MONITOR jacks. The TAPE 2 MONITOR REC jacks continue to output sound from the previously selected source after you press TAPE 2 MONITOR. To return to the previous source, press TAPE 2 MONITOR again so TAPE 2 disappears. Notes: · If you press TAPE 2 MONITOR when that cassette deck is neither playing nor recording, the receiver mutes the current audio source. To hear the audio source, press TAPE 2 MONITOR so TAPE 2 disappears from the display. · Do not press TAPE 2 MONITOR while you are recording on the deck connected to TAPE 2 MONITOR REC. If you do, the recording is interrupted for about 1 second. Monitoring a Program Source The receiver sends the audio of the program source you select-- VCR/TAPE 1, DVD/LD, CD, FM/AM (tuner), or PHONO -- to the VCR/TAPE 1 OUT/REC (audio) and TAPE 2 MONITOR OUT/REC jacks. If you select VCR/TAPE 1 or DVD/LD, the video program is also sent to the VIDEO OUT TO MONITOR TV jack. The VOLUME control does not affect the level of the signal going to the tape decks. Dubbing a Cassette Tape You can copy (dub) a cassette tape from one cassette deck to another through the STAV-3770. You can use either deck as the playback or recording deck. However, if you want to monitor the cassette deck during dubbing, use the deck connected to the VCR/TAPE 1 jacks as the source, and the deck you connected to the TAPE 2 REC jacks as the recording deck. Then press TAPE 2 MONITOR so TAPE 2 and the last program source you selected appear on the display. See "Using the VCR/ TAPE 1 and TAPE 2 MONITOR Buttons." The VOLUME control does not affect the level of the signal going to the tape decks. 19 Cassette Deck/VCR Features Playing and Recording Video Tapes You can connect two video sources to the receiver. If you connect a VCR to the VCR/TAPE 1 and DVD/LD audio and video jacks, you can copy video cassette tapes from one VCR to another and monitor the dubbing process. Playing a Video Tape To play a video tape, load the tape into the VCR connected to either VCR/TAPE 1 or DVD/LD. Press the button (VCR/TAPE 1 or DVD/LD) that corresponds to the jack the VCR is connected to. VCR or DVD/LD appears on the display. Follow the VCR's instructions to begin playback. If you connected a monitor to the receiver's TO MONITOR TV jack, you can view the program on that monitor. Copying a Video Tape Follow these steps to copy a video tape from one VCR to another through the STAV-3770. 1. Load the tape you want to copy into the VCR connected to DVD/LD. 2. Load a blank tape (or one you want to record over) into the VCR connected to the VCR/TAPE 1 jacks. 3. Press DVD/LD. 4. Begin recording and playback on the VCRs. Important: Most material performed in public, such as concerts, plays, and movies, or distributed on prerecorded video tapes is copyrighted. The unauthorized recording or duplication of copyrighted material is a violation of the copyright laws of most countries and such duplication may result in fines, imprisonment, or both. Note, however, that in the United States, it is not a violation of U.S. copyright laws for a consumer to record a broadcast television program for private (in-home) viewing. 20 Using Advanced Sound Options Your receiver has four special sound options: Dolby Pro Logic Surround, Dolby 3CH Logic, DSP Effect, and Dolby Virtual. These special options enhance the sound from a connected program source. Notes: · To get the full benefit from programs encoded with Dolby Surround Sound, you need a stereo VCR or DVD/LD player. · Dolby Surround does not operate correctly if the signal passes through a graphic equalizer. If you connected an equalizer to the TAPE 2 MONITOR jacks, do not select TAPE 2 MONITOR when you listen to Dolby Surround signals. To turn on Dolby Pro Logic Surround or Dolby 3CH Logic, press PRO LOGIC on the remote control until PRO LOGIC, THEATER 1, or THEATER 2 appears on the display, then press SURROUND followed by CENTER MODE to select NORMAL, WIDE, PHANTOM, or 3chLOGIC. See "Sound Mode Adjustments (Remote Control Only)" on Page 22 for information about each of these options. For Dolby Virtual, press DOLBY VIRTUAL (VIRTUAL on the remote control) to turn this feature on or off. To turn on a DSP effect, press DSP MODE until the desired option (see below) appears on the display. Dolby Pro Logic Surround Dolby Pro Logic Surround puts you in the middle of the action. The center- and rear-channel speakers add incredible realism by directing the sound to the appropriate speakers, making you feel like you are really there. Pro Logic is the standard. Dolby 3CH Logic Dolby 3CH Logic produces a more spacious sound field than is possible with ordinary stereo playback by sending the rear channel's sound to the front left and right speakers. Select 3chLOGIC when you play a Dolby Surround Sound program and do not have rear speakers. Dolby Virtual Dolby Virtual lets you enjoy programs encoded with Dolby Surround while using only two front speakers. DSP Effect You can choose one of five DSP effects -- HALL, JAZZ, DANCE, THEATER 1, or THEATER 2. Hall simulates a large concert hall, best suited for classical music. Jazz provides the acoustic effects generally heard in jazz clubs. Dance gives the effect of a discotheque. Both theater modes provide the effect of a movie theater. THEATER 1 sounds like a large movie theater. THEATER 2 seems like a smaller theater. Try each setting to find the best effect for your programs. 21 Using Advanced Sound Options Sound Mode Adjustments (Remote Control Only) Note: If you do not use a center speaker, the monaural signals are only reproduced if you select PHANTOM. Center Mode Setting The center mode setting affects the center channel's bass signals. It operates only when you select the Dolby Pro Logic Surround or Dolby 3CH Logic mode. On the remote control, press SURROUND then CENTER MODE. Each time you press CENTER MODE, the setting changes: NORMAL, WIDE, PHANTOM, or 3chLOGIC. NORMAL -- For a small center speaker. The front left and right speakers play the center-channel bass sounds. WIDE -- For a medium or large center speaker. The center speaker plays the center-channel bass sounds. PHANTOM -- For no center speaker. All center-channel sound comes from the front left and right speakers. 3chLOGIC -- For no rear speakers. The rear channel's sound is sent to the front left and right speakers. Test Tone The test tone lets you balance the signal levels between all your speakers. To adjust the levels, see "Center Level" and "Rear Level." To turn on the test tone, select one of the surround sound modes (PRO LOGIC, THEATER 1, THEATER 2, or 3chLOGIC) then press SURROUND. Then press TEST TONE. The receiver sounds a 2-second tone from the front left, center, front right, and surround (rear) speakers, in sequence. Lch, Cch, Rch, and Sch appear as the test tone sounds. The center test tone sounds and Cch appears only when you select Normal, Wide, or 3CH Logic. If you select 3CH Logic, the receiver sounds the 2-second tone from the left, center, and right speakers, in sequence. Press TEST TONE again to turn off this feature. Center Level Note: Use the VOLUME control to adjust the overall sound level. Press ­ CENTER LEVEL + to adjust the center speaker sound level. Rear Level Press ­ REAR LEVEL + to adjust the rear speakers' sound level. 22 Using Advanced Sound Options Delay Time Notes: · For Dolby Pro Logic Surround, the delay is preset to 5 ms. · The delay time does not affect the DSP or Dolby Virtual mode. In the Dolby Pro Logic Surround modes (PRO LOGIC, THEATER 1, and THEATER 2), the receiver slightly delays the sound going to the rear speakers. You can change this delay time from 15 to 30 milliseconds (ms) in 5 ms steps. Adjust the delay time for the best surround effect. Press SURROUND, then hold down DELAY TIME to change the delay time. The receiver displays the selected time. Effect Level With DSP and Dolby Virtual, you can change the delay time to alter the sound effect. You can set different levels for each mode independently (from 10 to 90 for DSP, and from 30 to 90 for Dolby Virtual). Press SURROUND, then hold down DISC EFFECT ­ or + to change the effect level. Dolby Virtual effects change considerably when the listening position changes. It sounds best when you move farther away from the speakers (about 1.2 times farther than the distance between the left and right speakers). Also, the effect can vary depending on the source program. 23 Using the Remote Control The remote control works up to a distance of about 23 feet, and within a 30degree angle on either side of the receiver. Point the control at the receiver's front panel and press the desired button(s). Many buttons on the remote control work the same as buttons on the receiver's front panel. Use these buttons exactly as you would use the corresponding buttons on the receiver. CONTROL MODE Buttons TROL OUT The three CONTROL MODE buttons select the device you connected to the CONjack of the STAV-3770, CD player, VCR, or cassette deck. Receiver/Amplifier Operation Before operation, press TUNER to select receiver/amplifier operation. STATION TUNER BAND FREQ FM MONO CD POWER STATION Tunes to the next higher or lower memory location. Selects the AM or FM tuner band. Tunes to radio stations. Selects the FM reception mode. Selects the memory class. Allows direct input of the station frequency. Select the corresponding memory station. During Direct Access, enter the station's frequency. Sounds test tones from each speaker when pressed after SURROUND. CLASS DIRECT ACCESS TAPE BAND FREQ TUNER FM MONO CLASS DIRECT ACCESS Number Buttons Receiver/ Amplifier Buttons TEST TONE 1 TEST TONE 2 REAR LEVEL 3 4 CENTER MODE 5 CENTER LEVEL 6 CONTROL MODE SURROUND 7 DELAY TIME 8 DISC EFFECT 9 0 PRO LOGICDSP MODE MUTING ­ REAR LEVEL + CENTER MODE Controls the sound level of the rear speakers when pressed after SURROUND. VIRTUAL LOUD RECEIVER POWER FUNC DIRECT