Cat. No. 31-3041 Audio/Video Receiver STAV-3670 VOLUME STAV-3670 AUDIO/VIDEO RECEIVER PHONO TUNER LD/DVD CD STAND BY POWER VCR SFC MODE TAPE 1 SUPER BASS DOLBY PRO LOGIC TAPE 2 MONITOR MIN DOLBY SURROUND PRO PHONES MEMORY LOGIC SPEAKERS A B 4-CHANNEL EQUAL POWER OUTPUT FM MONO CLASS STATION FM/AM TUNING BASS MAX TREBLE BALANCE OSR L Owner’s Manual R Please read before using this equipment.
Introducing the Optimus STAV-3670 Your Optimus STAV-3670 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.
IMPORTANT SAFETY INSTRUCTIONS This receiver is made and tested to meet exacting safety standards. It meets both UL and FCC requirements 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.
Contents Preparing Your Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Positioning Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Connecting Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparing Your Receiver Caution: Make all the necessary connections before you plug in or turn on the receiver. Positioning Speakers aa L b R Halfway Point Halfway Point Between Speake Between Speakers b a=b a=b Normal in Listening Point Person Listening Area 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.
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 (A or B) at the same time. When you use two pairs of speakers, connect one set to Speakers A and one set to Speakers B.
Preparing Your Receiver Right Right Front B Speakers B Front Speakers Right Right Left Left Front A Speakers A Front Speakers Left Left Center Speaker Center Speaker R L A A B B AUDIO IN R L FRONT SPEAKERS L R PRE OUT SUB WOOFER Amplified Subwoofer Subwoofer Amplifiers Right L R CENTER SPEAKER REAR SPEAKERS Surround Speakers Left Connecting the A and B Speakers Note: Be sure you connect the receiver’s right and left positive (+) and negative (–) terminals to the speaker’s correspo
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 A and B Speakers” to connect the speakers to the REAR SPEAKERS terminals. Connecting the Center Speaker The center speaker gives additional ambience to surround sound. Follow the steps in “Connecting the A and B Speakers” to connect the center speaker to the CENTER SPEAKER terminals.
Preparing Your Receiver Connecting Program Sources You can connect up to five external program sources to your receiver. OUT Note: Use shielded audio cables with phono connectors for all audio connections.
Preparing Your Receiver OUT IN IN TO MONITOR TV VIDEO IN REC VIDEO OUT PLAY OUT IN IN IN v L L R R OUT TAPE2 MONITOR SIGNAL GND PHONO VCR/ TAPE 1 LD/ DVD CD CONTROL V R V AUDIO OUT VIDEO OUT V L R L R V L v L R L R R L V V VIDEO AUDIO REC PLAY L L R R OUT IN REC INPUT VIDEO IN PLAY OUTPUT VCR VCR LD/DVD Player TV Monitor Connecting Video Sources Note: If your VCR is monaural, use a Yadapter (available at your local RadioShack store) to connect the
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.
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 75Ω coaxial cable. Note: If your antenna has 300Ω twin-lead cable, consult your local RadioShack store for the correct adapter. 1. Disconnect the supplied FM antenna from the receiver’s FM UNBAL 75Ω terminal. 2.
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. CONTROL CONTROL OUT IN IN OUT Receiver Remote Control Other Component with OSR Mark 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.
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.
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. Note: 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.
Basic Operation Tuning the Radio Note: For weak signals, we recommend manual tuning. Your receiver offers three types of electronic tuning — manual, automatic, and memory. Manual and Automatic Tuning Follow these steps to manually or automatically tune to the stations. 1. Press TUNER. Then press FM/AM to select the desired band. The receiver tunes to and displays the frequency last selected in that band. 2. Press TUNING or once to manually select the next higher or lower frequency.
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. BALANCE Control The BALANCE control lets you adjust the sound balance between the left and right speakers.
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.
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 LD/DVD 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 LD/DVD. Press the button (VCR/TAPE 1 or LD/DVD) that corresponds to the jack the VCR is connected to.
Using Advanced Sound Options Your receiver has four special sound options: Dolby Pro Logic Surround, Dolby 3CH Logic, Studio-Effect Surround, and Simulated Surround. These special options enhance a program source. Notes: • To get the full benefit from programs encoded with Dolby Surround Sound, you need a stereo VCR. • Dolby Surround does not operate correctly if the signal passes through a graphic equalizer.
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. Slide AUDIO•SURROUND on the remote control to SURROUND.
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.
CD Player Operation Before operation: • Set AUDIO•SURROUND to AUDIO. • Press CD POWER to select the CD player operation. • You must connect the CD player to both your receiver’s CONTROL OUT and audio jacks for these functions to work. CD POWER Turns the CD player on and off (only for CD players having the CONTROL IN/OUT feature). | ASMS | Returns to the beginning of the current track or advances to the next track. Stops playback. Press to pause play. Press again to resume. Plays the CD.
Troubleshooting If the receiver is not working as it should, the following suggestions might help. If you follow the suggestions in this chart and the receiver still does not work properly, contact your local RadioShack store for assistance. Problem Power does not turn on. Cause Suggestion • Power cord is disconnected. • Plug in the power cord. • Protection circuit is activated. • Unplug the power cord, then plug it in again. The receiver does not respond to button presses.
Care and Maintenance Your Optimus STAV-3670 Audio/Video Receiver is an example of superior design and craftsmanship. The following suggestions will help you care for the receiver so you can enjoy it for years. Keep the receiver dry. If it gets wet, wipe it dry immediately. Liquids can contain minerals that can corrode the electronic circuits. Handle the receiver gently and carefully. Dropping it can damage its circuit boards and can cause the receiver to work improperly.
The FCC Wants You to Know Your receiver might cause radio or TV interference even when it is operating properly. To determine whether your receiver is causing the interference, turn off your receiver. If the interference goes away, your receiver is causing it.
Specifications Amplifier Front Channel Average Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Watts per Channel into 8 Ohms From 40 to 20,000 Hz, With No More than 0.9% Total Harmonic Distortion Measured Pursuant to the Federal Trade Commission’s Trade Regulation Rule on Amplifier Output Power Claims Front Channel Surround Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Watts per Channel (1 kHz, 0.
Specifications FM Tuner Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87.5 to 108 MHz Usable Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mono: 11.2 dBf, IHF (1.0 µV/75 Ohms) 50 dB Quieting Sensitivity Mono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index to Features by Control Name This table lists the control and indicator names found on the front of your receiver, along with the page number where the control or indicator is discussed. To find a description for the buttons on the remote control, see “Using the Remote Control” on Page 22.
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Limited Two-Year Warranty This product is warranted by RadioShack against manufacturing defects in material and workmanship under normal use for two (2) years from the date of purchase from RadioShack companyowned stores and authorized RadioShack franchisees and dealers.
