Cat. No. 31-3042 Audio/Video Receiver STAV-3770 DOLBY SURROUND P R O L O G I C STAV-3770 AUDIO/VIDEO RECEIVER STANDBY MEMORY FM MONO CLASS POWER DSP MODE DOLBY VIRTUAL LOUDNESS DOLBY PRO LOGIC VOLUME DSP DIGITAL SIGNAL PROCESSOR STATION SELECT OSR TUNING DSP SELECT VCR TAPE 1 DVD/LD CD FM/AM PHONO TAPE 2 TONE DOWN UP MONITOR BALANCE LEFT RIGHT SPEAKER 4X100WATT EQUAL POWER OUTPUT MIN MAX PHONES 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.
IMPORTANT SAFETY INSTRUCTIONS This receiver is made and tested to meet exacting safety standards. It meets both UL and FCC requirements WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. 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.
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 Midway 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. 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.
Preparing Your Receiver Right Front Speakers Center Speaker AUDIO IN Left FRONT SPEAKERS SUB WOOFER R L CAUTION: SPEAKER IMPEDANCE 8 Amplified Subwoofer PRE OUT R L R L CENTER SPEAKER Right ~ 16 / SPEAKER SURROUND SPEAKERS 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.
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.
Preparing Your Receiver Connecting Program Sources You can connect up to five external program sources to your receiver.
Preparing Your Receiver VIDEO OUT TO MONITOR TV VIDEO OUT CONTROL SUB WOOFER OUT IN PLAY IN OUT REC VIDEO IN VIDEO IN PRE OUT IN IN PLAY OUT REC IN L L R R PHONO TAPE2 MONITOR CD DVD/ LD VCR/ TAPE1 R L R V L L R VIDEO OUT V AUDIO OUT V V V L R L R V L R v V SIGNAL GND VIDEO IN VIDEO AUDIO REC PLAY L L OUT R R IN REC INPUT PLAY OUTPUT VCR TV Monitor DVD/LD Player VCR Connecting Video Sources Note: If your VCR is monaural, use a Yadapter (available a
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 IN OUT 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. 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 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.
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.
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.
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 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.
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.
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.
Using Advanced Sound Options Delay Time Notes: 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 • For Dolby Pro Logic Surround, the delay is preset to 5 ms. can change this delay time from 15 to 30 milliseconds (ms) in 5 ms steps. Adjust the delay time for the best surround effect. • The delay time does not affect the DSP or Dolby Virtual mode.
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.
Using the Remote Control Bypasses the receiver’s audio control circuits. Press again to restore the previous settings. DIRECT + MASTER VOLUME – Adjusts the system’s volume. RECEIVER POWER Turns the receiver on and off. CD CD Player Operation Note: You must have connected the CD player to both of your receiver’s CONand audio jacks for these functions to work.
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-3770 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Watts per Channel (1 kHz, 0.
Specifications FM Tuner Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87.5 to 108 MHz Usable Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mono: 13.2 dBf, IHF (1.3 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 24.
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.
