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6

Preparing Your Receiver

Connecting 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. Use these markings as a guide 
to help you properly connect the speakers to your receiver.

Follow these steps to prepare the speaker wires.

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.

Setting the Impedance Selector Switch

Before proceeding to speaker connection, be sure to set the 

IMPEDANCE 

SELECTOR

 switch to the appropriate position. If you connect speakers 

with 6- to 8-ohm impedance, set the switch to 

6~LESS THAN 8 W 

position. If 

you are using 8- to 16-ohm impedance, set it to 

8~16

 

 position.

Follow these guidelines when you select
and connect speakers.

• Only connect speakers that are rated

at between 6 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.

• Optimus and other high-quality speak-

ers have color-coded speaker termi-
nals (red for positive polarity and
black for negative polarity). Use these
color-coded terminals as a guide to
help you properly connect the speak-
ers to the receiver.

• Use 16-gauge (or larger) speaker wire

for all speaker connections, and con-
sider possible speaker locations be-
fore you decide how much speaker
wire you need.

Speaker Wire

Wire Strands

Wire Strands

Conductor

Summary of Contents for 31-3045

Page 1: ...E MEMORY TUNING SELECT SELECT MUTING LOUDNESS DIRECT SPEAKERS TUNING L BALANCE R STATION TONE PHONES 5X100WATT EQUAL POWER OUTPUT POWER STAV 3780 AUDIO VIDEO RECEIVER DVD 5 1CH OSR DOLBY SURROUND P R O L O G I C DSP DIGITAL SIGNAL PROCESSOR STAV 3780 Cat No 31 3045 Owner s Manual Please read before using this equipment Audio Video Receiver ...

Page 2: ...e 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...

Page 3: ...fied 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 fe...

Page 4: ...MPX Mode 18 Adjusting Balance 18 Using Headphones 19 Muting the Receiver 19 Loudness Control 19 Bypassing the Sound Controls 19 Cassette Deck VCR Features 20 Using the VCR TAPE 1 and TAPE 2 MONITOR Buttons 20 Monitoring a Program Source 20 Dubbing a Cassette Tape 20 Playing and Recording Video Tapes 21 Using Advanced Sound Options 22 Sound Mode Adjustments Remote Control Only 23 Using the Remote C...

Page 5: ... 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 r...

Page 6: ...ion be sure to set the IMPEDANCE SELECTOR switch to the appropriate position If you connect speakers with 6 to 8 ohm impedance set the switch to 6 LESS THAN 8 W position If you are using 8 to 16 ohm impedance set it to 8 16 Ω Ω Ω Ω position Follow these guidelines when you select and connect speakers Only connect speakers that are rated at between 6 and 16 Ohms Be sure you properly connect all spe...

Page 7: ...he 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 neg ative terminal Repeat Steps 1 4 to connect the left speaker to the receiver s FRONT SPEAKERS left terminals FRONT SPEAKERS CENTER SPEAKER SURROUND SPEAKERS L R L R L R L R A B A B SPEAKER IMPEDANCE 6Ω OR 8Ω 16Ω SPEAKER CAUTION PRE OUT SUB WOOFER...

Page 8: ...r speaker connect CENTER PRE OUT to its line level input You can also con nect this jack to the audio input of your TV Connecting a Subwoofer Amplifier Your receiver includes a line level subwoofer output Connecting a sub woofer 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 exper...

Page 9: ... TAPE 2 MONITOR IN PLAY jacks Then 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 TV IN or LD SAT audio jacks IN IN VIDEO IN IN IN OUT IN OUT SIGNAL GND PHONO CD DVD TV DVD 5 1CH FRONT LD SAT VCR TAPE1 TAPE2 MONITOR PLAY REC PLAY REC PRE OUT SUB WOOFER SUB WOOFER DVD 5 1CH INPUT CE...

Page 10: ... input Connecting TVs Video Monitors You can connect either two TV s or video monitors to the receiver 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 video input jacks Connect a video cable from the receiver s VIDEO OUT TO MONI TOR TV 1 or 2 jack to the monitor s video input IN IN VIDEO IN IN IN OUT IN OUT SIG...

Page 11: ...r Receiver IN IN VIDEO IN IN IN OUT IN OUT SIGNAL GND PHONO CD DVD TV DVD 5 1CH FRONT LD SAT VCR TAPE1 TAPE2 MONITOR PLAY REC PLAY REC PRE OUT SUB WOOFER SUB WOOFER DVD 5 1CH INPUT CENTER CENTER PRE OUT SURROUND SURROUND VIDEO OUT TO MONITOR TV 1 2 L R L R CONTROL OUT R L L R L R L R AUDIO OUT SURROUND OUT CENTER OUT SUBWOOFER OUT VIDEO OUT R L V V L R DVD DVD Note Subwoofer output is obtained onl...

Page 12: ...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 an optional 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 a...

Page 13: ...onnect the center wire to the receiver s FM UNBAL 75Ω terminal Twist the shielding to secure any loose wire strands and connect it to the FM UNBAL 75Ω terminal 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 t...

Page 14: ...nent using the receiver s remote control daisy chain the CONTROL OUT and CONTROL IN connections as shown Installing the Remote Control s Batteries Your remote control requires two AA batteries not included for power For the best operation and longest life we recommend alkaline batter ies available at your local RadioShack store 1 Press and slide open the battery compartment cover 2 Place two fresh...

Page 15: ... heater iron monitor or TV to this AC outlet Doing so can cause a risk of over heating and fire and could damage the receiver AC OUTLET SWITCHED 100W MAX 0 8A MAX IMPEDANCE SELECTOR 8 16Ω SPEAKER DO NOT CONNECT TV SET OR MONITOR 6 LESS THAN 8Ω SPEAKER SEE INSTRUCTION MANUAL CAUTION CAUTION AC 120V 60Hz Warning To prevent electric shock do not use this polarized plug with an exten sion cord recepta...

Page 16: ...ise to increase the volume or counterclock wise to decrease it Or you can use MASTER VOLUME on the remote control 5 Adjust the bass treble or balance to suit your listening prefer ence 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 TONE until you get the desired sound For more detail on adjusting t...

Page 17: ... frequencies and release it To automatically search for the next lower or higher station hold down TUNING until the display starts to change then release it The receiver searches down or up the band to the next strong station Notes 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 ...

Page 18: ...ontrol Using MPX Mode To receive FM stations in stereo press MPX MODE 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 MPX MODE 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 l...

Page 19: ...ase 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 To temporarily mute the sound press MUTING MUTING appears Press MUTING again to restore the audio level Loudness Control To increase the high and low ranges of sounds for improved audio at a low listening level press LOUDNESS so LOUDNESS appears ...

Page 20: ... disappears from the display Do not press TAPE 2 MONITOR while you are recording on the deck connected to TAPE 2 MONITOR REC Doing so interrupts the recording for about 1 second Monitoring a Program Source The receiver sends the audio of the program source you select VCR TAPE 1 DVD TV LD SAT 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 ...

Page 21: ...an 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 3780 1 Insert the tape you want to copy into the VCR connected to DVD TV or LD SAT 2 Insert a blank tape or one you want to record over into the VCR connected to the VCR TAPE 1 jack 3 Press DVD TV or LD SAT 4 Begin recording and playback on the VCRs Important Mo...

Page 22: ...RMAL WIDE PHANTOM or 3CH LOGIC See Sound Mode Adjustments Remote Con trol Only on Page 23 for information about each of these options Virtual Dolby Surround Dolby Virtual SRS Virtual lets you enjoy programs encoded with Dolby Surround while using only two front speakers SRS creates a surround sound environ ment from a material recorded in stereo Select SRS 1 for the source that has broad frequency...

Page 23: ... operations To use this feature using the remote control press DVD TV followed by SURROUND then press 5 1CH N N N No o o ot t t te e e e When you use 5 1CH sound mode you cannot use DOLBY VIRTUAL SRS PRO LOGIC 5 D THEATER and DIRECT modes If you press a button for any of these modes DVD 5 1CH flashes on the display as a reminder Sound Mode Adjustments Remote Control Only Center Mode Setting The ce...

Page 24: ...subwoofer sound level This control works in any sound mode N N N No o o ot t t te e e e Depending on the sound mode you selected some speaker level controls do not work For example when you select 3CH LOGIC REAR RIGHT LEVEL or REAR LEFT LEVEL does not work Delay Time In the Dolby Pro Logic Surround modes except 3CH Logic the receiver slightly delays the sound going to the rear speakers You can cha...

Page 25: ...e the basic functions of your other audio video device Follow these steps to program the remote control with the correct manufacturer s code number for the device N N N No o o ot t t te e e e Some brands have more than one code listed in the charts If a code does not work with your device try another The listed codes might not work with all models from the listed manufacturers 1 Find the code for ...

Page 26: ...09 420 421 422 423 424 408 407 Optimus 408 432 433 402 418 419 Panasonic 408 432 433 Pioneer 400 RCA 401 406 408 414 405 413 411 415 Sanyo 410 412 425 435 Sharp 402 418 419 Sony 416 417 404 408 Toshiba 405 409 426 Zenith 403 404 417 TAPE Brand Code Denon 810 Fisher 813 JVC 802 815 Kenwood 804 807 Onkyo 809 808 Optimus 800 Pioneer 800 Sony 801 806 TEAC 805 Technics 803 Yamaha 811 812 816 ...

Page 27: ...06 327 324 325 Technics 304 326 Yamaha 315 314 328 TV Brand Code GE 601 608 610 611 617 602 628 618 Goldstar 610 623 621 602 Grandiente 635 Hitachi 606 610 624 625 618 JVC 613 623 Magnavox 607 610 603 612 629 Mitsubishi 609 610 602 621 Panasonic 608 622 607 Philips 607 Pioneer 600 RadioShack 610 623 621 602 RCA 601 610 615 616 617 618 Sanyo 621 614 Sharp 602 619 627 Sony 604 Toshiba 605 602 626 62...

Page 28: ... 2 and 3 and try other codes for the manufacturer If it still does not function you must use the original remote control supplied with your device N N N No o o ot t t tes es es es The remote control keeps the code you programmed for short peri ods of time allowing you to replace the batteries without losing the codes However if the remote control fails to operate after you replace the batteries re...

Page 29: ...e three center modes or 3CH Logic when pressed after SURROUND in Dolby Pro Logic mode CENTER LEVEL Controls the sound level of the center speaker when pressed af ter SURROUND DELAY TIME Sets the rear channel delay for Dolby Pro Logic Surround pro grams when pressed after SURROUND EFFECT Adjusts the level of DSP mode SURROUND Sets the remote control into the surround setup mode PRO LOGIC Selects Do...

Page 30: ...th some CD players Cassette Deck Operation Note You must have connected the cassette deck to both your receiver s CONTROL OUT and audio jacks or programmed the code for your cassette deck into the remote control for these functions to work Before operation press TAPE or the one connected to your cassette deck to select cassette deck operation The remote control operates a single cassette deck and ...

Page 31: ...rward within a chapter track Press to pause play Press again to resume On some DVD play ers press to pause the playback so you can view a single frame freeze frame operation Stops playback Plays the disc DISC Turns the menu on off The number buttons and 10 work differently depending on the type of DVD players you are using The two basic systems are A Some models use the buttons as the normal numbe...

Page 32: ...n Note You must have programmed the code for your VCR into the remote control for these functions to work Before operation press VCR or the one connected to your VCR to select VCR operation POWER Turns on off the VCR CHANNEL Press to change the VCR s tuner channel Press to switch the VCR antenna output VCR s tuner output or direct signal from antenna to use TV s tuner Quickly locates and plays the...

Page 33: ... POWER Turns the power on off Moves cursor left Moves cursor up Moves cursor right Moves cursor down Decreases volume Increases volume Selects the TV s input mode antenna or line input ENTER enters the selected cursor position Number Buttons Selects channel directly DISC Turns the menu on off Satellite Receiver Operation Note You must have programmed the code for your SAT receiver to the remote co...

Page 34: ... the selected video source Incorrect connections Check and correct the connections High noise level Station not correctly tuned Adjust tuning Antenna not connected Connect the antenna FM antenna still coiled or is not pointing in the correct direction Stretch both ends of the antenna taut and reposition the antenna AM loop antenna not pointing in the correct direction Adjust the AM loop antenna No...

Page 35: ... shorten the life of electronic devices damage batteries and distort or melt plastic parts Keep the receiver away from dust and dirt which can cause premature wear of parts Wipe the receiver with a damp cloth occasionally to keep it looking new Do not use harsh chemicals cleaning solvents or strong detergents to clean the receiver Use only fresh batteries of the recommended size and type in the re...

Page 36: ... receiver If the interference goes away your re ceiver is causing it Try to eliminate the interference by Moving your radio or TV away from the receiver Connecting your receiver to an outlet that is on a different electri cal circuit from the radio or TV Contacting your local RadioShack store for help If you cannot eliminate the interference the FCC requires that you stop using your receiver ...

Page 37: ... Overload Level 0 1 THD 1 kHz 100 mV Frequency Response Phono 20 Hz to 20 000 Hz 0 3 dB CD DVD TV LD SAT VCR TAPE 1 TAPE 2 Monitor 5 Hz to 100 000 Hz 0 3 dB Output Level Impedance VCR TAPE 1 REC TAPE 2 Monitor REC 200 mV 2 2 kOhms Tone Controls Bass 8 dB 150 Hz Treble 8 dB 10 kHz Loudness 7 dB 6 dB 100 Hz 10 kHz Signal to Noise Ratio IHF Short Circuited A Network Phono 72 dB CD DVD TV LD SAT VCR T...

Page 38: ...quency Response 30 Hz to 15 kHz 1 dB Antenna Input 75 Ohms Unbalanced AM Tuner Frequency Range 530 to 1700 kHz Sensitivity IHF Loop Antenna 350 µV m Selectivity 25 dB Signal to Noise Ratio 50 dB General Power Requirements 120 Volts AC 60 Hz Power Consumption 280 Watts 410 VA UL AC Outlet Ratings Switched Total 100 Watts 0 8 Amps Maximum Dimensions HWD 61 4 169 16 143 4 Inches 158 420 374 mm Weight...

Page 39: ...n for the buttons on the remote control see Using the Remote Control on Page 25 Control Page 5 D THEATER 23 TONE BALANCE 16 18 CD 16 CLASS 18 DIRECT 19 DOLBY PRO LOGIC 22 DSP MODE 22 DVD TV 16 FM AM 17 LD SAT 15 LOUDNESS 19 MEMORY 18 MPX MODE 18 MUTING 19 PHONES 19 PHONO 16 POWER 16 SELECT 16 17 SPEAKERS 16 19 STATION 18 TAPE 2 MONITOR 16 20 TUNING 17 TUNING SELECT 17 VCR TAPE 1 16 20 VIRTUAL SRS ...

Page 40: ...t of a product defect during the warranty period take the product and the RadioShack sales receipt as proof of purchase date to any RadioShack store RadioShack will at its option un less otherwise provided by law a correct the defect by product repair without charge for parts and labor b replace the product with one of the same or similar design or c refund the purchase price All replaced parts an...

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