AV-S7(E)(E/F)1-16

9/11/0

9:36 AM

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Home Cinema Sound System Systme Audio Home Cinma
OWNERS MANUAL MODE DEMPLOI

STANDBY/ON

PROGRAM

STANDBY INPUT 1 INPUT 2

VOLUME C

R A B C

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SAFETY INSTRUCTIONS

CAUTION
RISK OF ELECTRIC SHOCK DO NOT OPEN
Wall or Ceiling Mounting The unit should be mounted to a wall or ceiling only as recommended by the manufacturer. Ventilation The unit should be situated so that its location or position does not interfere with its proper ventilation. For example, the unit should not be situated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings. Heat The unit should be situated away from heat sources such as radiators, stoves, or other appliances that produce heat.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
Explanation of Graphical Symbols
The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert you to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert you to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
10 Power Sources The unit should be connected to a
power supply only of the type described in the operating instructions or as marked on the unit.
11 Power-Cord Protection Power-supply cords should be
routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the unit.
12 Cleaning The unit should be cleaned only as
recommended by the manufacturer.
WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.
13 Nonuse Periods The power cord of the unit should be
unplugged from the outlet when left unused for a long period of time.
Read Instructions All the safety and operating instructions should be read before the unit is operated. Retain Instructions The safety and operating instructions should be retained for future reference. Heed Warnings All warnings on the unit and in the operating instructions should be adhered to. Follow Instructions All operating and other instructions should be followed. Water and Moisture The unit should not be used near water for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool. Carts and Stands The unit should be used only with a cart or stand that is recommended by the manufacturer.
14 Object and Liquid Entry Care should be taken so that
objects do not fall into and liquids are not spilled into the inside of the unit.
15 Damage Requiring Service The unit should be serviced

by qualified service personnel when: A. The power-supply cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the unit; or C. The unit has been exposed to rain; or D. The unit does not appear to operate normally or exhibits a marked change in performance; or E. The unit has been dropped, or the cabinet damaged.
16 Servicing The user should not attempt to service the unit
beyond those means described in the operating instructions. All other servicing should be referred to qualified service personnel.
6A A unit and cart combination should be
moved with care. Quick stops, excessive force, and uneven surfaces may cause the unit and cart combination to overturn.
17 Power Lines An outdoor antenna should be located

away from power lines.

18 Grounding or Polarization Precautions should be taken
so that the grounding or polarization is not defeated.

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FCC INFORMATION (for US customers only)
1. IMPORTANT NOTICE : DO NOT MODIFY THIS UNIT! This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modifications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product. 2. IMPORTANT : When connecting this product to accessories and/or another product use only high quality shielded cables. Cable/s supplied with this product MUST be used. Follow all installation instructions. Failure to follow instructions could void your FCC authorization to use this product in the USA. 3. NOTE : This product has been tested and found to comply with the requirements listed in FCC Regulations, Part 15 for Class B digital devices. Compliance with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with other electronic devices. This equipment generates/uses radio frequencies and, if not installed and used according to the instructions found in the users manual, may cause interference harmful to the operation of other electronic devices. Compliance with FCC regulations does not guarantee that interference will not occur in all installations. If this product is found to be the source of interference, which can be determined by turning the unit OFF and ON, please try to eliminate the problem by using one of the following measures: Relocate either this product or the device that is being affected by the interference. Utilize power outlets that are on different branch (circuit breaker or fuse) circuits or install AC line filter/s. In the case of radio or TV interference, relocate/reorient the antenna. If the antenna lead-in is 300 ohm ribbon lead, change the lead-in to coaxial type cable. If these corrective measures do not produce satisfactory results, please contact the local retailer authorized to distribute this type of product. If you can not locate the appropriate retailer, please contact Yamaha Electronics Corp., U.S.A. 6660 Orangethorpe Ave, Buena Park, CA 90620. The above statements apply ONLY to those products distributed by Yamaha Corporation of America or its subsidiaries.

Dolby Pro Logic Surround

This unit employs a Dolby Pro Logic Surround decoder similar to professional Dolby Stereo decoders used in many movie theaters. By using the Dolby Pro Logic Surround decoder, you can experience the dramatic realism and impact of Dolby Surround movie theater sound in your own home. Dolby Pro Logic employs a four-channel five-speaker system. The Pro Logic Surround system divides the input signal into four levels: the left and right main channels, the center channel (used for dialog), and the rear surround sound channels (used for sound effects, background noise, and other ambient noises). The center channel allows listeners seated in even less-than-ideal positions to hear the dialog originating from the action on the screen while experiencing good stereo imaging. Dolby Surround is encoded on the sound track of prerecorded video tapes, laser discs, and some TV/cable broadcasts. When you play a source encoded with Dolby Surround on this unit, the Dolby Pro Logic Surround decoder decodes the signal and distributes the surround-sound effects. This Dolby Pro Logic Surround Decoder employs a digital signal processing system. This system improves the stability of sound at each channel and minimizes crosstalk between channels, so that positioning of sounds around the room is more accurate compared with conventional analog signal processing systems. In addition, this unit features a built-in automatic input balance control. This always assures you the best performance without manual adjustment. Manufactured under license from Dolby Laboratories Licensing Corporation. Dolby, Pro Logic, and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.
Dolby Pro Logic Surround + DSP
Dolby Surround sound system shows its full ability in a large movie theater, because movie sounds are originally designed to be reproduced in a large movie theater using many speakers. It is difficult to create a sound environment similar to that of a movie theater in your listening room, because the room size, materials of inside walls, the number of speakers, and other factors of your listening room are much different from those of a movie theater. Yamaha DSP technology made it possible to present you with nearly the same sound experience as that of a large movie theater in your listening room by compensating for lack of presence and dynamics in your listening room with its original digital sound fields combined with Dolby Surround sound field. The combination of Dolby Pro Logic Surround and DSP is used on the sound field program PRO LOGIC ENHANCED.

CINEMA DSP

The YAMAHA CINEMA DSP logo indicates these programs are created by the combination of Dolby Pro Logic and YAMAHA DSP technology.

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SETTING UP THE SPEAKERS
Before you make connections, place all units in this system in their proper positions. Above all, the positioning of the speakers is important because it controls the whole sound quality of this system. Position the speakers on the basis of your listening position by following the instructions in this section.

Front L

Center

Front R

Speaker configuration
This system employs a 6-speaker configuration: 2 front speakers, 2 rear speakers, a center speaker and a subwoofer. The front speakers are used for the main source sound plus the effect sounds. The rear speakers are used for the effect and surround sounds, and the center speaker is for the center sounds (such as dialog.). The subwoofer is for reinforcing low frequencies of the main source sound and the center sound.

Subwoofer

Rear L

Rear R

Placing speakers

Front speakers:

Front R Center Subwoofer Front L TV set
On both sides of the TV and at almost the same height as the TV. Rear speakers: Behind your listening position, facing slightly inward. Nearly six feet (approx. 1.8 m) up from the floor. Center speaker: Precisely between the front speakers. Subwoofer: The position of the subwoofer is not so critical because low bass tones are not highly directional.
Note Although FRONT, REAR, and CENTER speakers are magnetically shielded, there may be some influence on the TV picture depending on the type of TV or the placement of the speakers. In such a case, place the speakers far enough from the TV so that there is no influence on the TV picture.

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SETTING UP THE SPEAKERS English Center Speaker Installation
When installing the center speaker on the TV, be sure to secure the center speaker to the TV using the velcro strips provided so that it does not fall.

STAND BY INPUT 1 INPUT 2

Rough surface Smooth surface
Notes Do not place the center speaker on top of a TV whose area is smaller than the bottom area of the center speaker, as the center speaker may drop and cause personal injury. Although this center speaker is a magnetically shielded type, there may be some influence on the TV picture depending on the type of TV or the placement of the center speaker. In such a case, place the center speaker apart from the TV so that there is no influence on the TV picture. Be sure to remove all dust, debris, oil, and other substances adhering to the section where the velcro strip is affixed. If this section is dirty, the velcro strip will not affix properly, and the center speaker may move or fall. When peeling off the backing paper of the velcro strips, be careful not to touch the adhesive surface. Doing so harms the adhesion strength. If there is a gap between the center speaker and TV, turn and extend the adjuster on the bottom rear section of the center speaker so that the center speaker is stable.

Bottom of the center speaker
Affix to the bottom of the center speaker (2 locations)
Adjuster Adjust as necessary

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s Mounting the front speakers
Place the front speakers on a rack or on a shelf, so that they are stabilized. To obtain more stability and usefulness, we recommend that you mount the speakers on the provided mounting brackets (type A).
Mounting bracket (type A)
To mount speakers on the mounting brackets (type A)
Attach the bracket to the bottom of the speaker using the provided screw (type A). Turn and/or slide the speaker on the bracket to the desired position, and then tighten the screw.

Screw (type A)

Mounting bracket (type B)
s Mounting the rear speakers
Mount the rear speakers on a shelf, rack or put them directly on the floor, or hang them on the wall.
To mount the rear speakers on a wall using the provided mounting brackets (type B)
Note It is recommended that you connect the speaker cords to the speakers terminals before attaching the bracket to the speaker.

Screw (type B)

Attach the bracket to the bottom of the speaker using the provided screw (type B). Turn and/or slide the speaker on the bracket to the desired position, and then tighten the screw.

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SETTING UP THE SPEAKERS English
Tapping screw (Available at a hardware store)
Fasten the screws into a firm wall or wall support as shown in the figure, and hang the holes of the mounting bracket on the protruding screws. * Make sure that the screws are held firmly in the holes.
Note If desired, you can hang the speaker on the protruding screws on the wall without using the bracket.
Min. 12 mm Wall/ wall support
WARNING: Each speaker weighs 0.7 kg (1 lbs. 9 oz.). Do not mount them on thin plywood or a soft wall surface material, as the screws may come out of the flimsy surface, causing the speakers to fall down and be damaged, or cause personal injury. Do not fasten the speakers to the wall with nails, adhesives, or other unstable hardware. Longterm use and vibrations may cause them to fall down. To avoid accidents resulting from tripping over loose speaker cords, fix them to the wall. Select a proper position on the wall to mount the speaker and the bracket so that no one will hit his head or face on the protruding part of the bracket and be injured.
s Mounting the speaker on a commercially available speaker stand
Mounting bracket (type C) The provided mounting bracket (type C) has one pair of screw holes (spaced 60 mm apart) available to mount the speaker on a speaker stand. * These screw holes use only M4 screws.

Attach the bracket to the bottom of the speaker using the provided screw (type A) so that the convex part of the bracket fits in the grooved part on the bottom of the speaker as shown on the left. Mount the speaker on the speaker stand using the screw holes on the bracket.
Note Mounting brackets (type C) are provided for each speaker (4).

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CONNECTIONS
When you have finished placing or installing all units in this system, begin making connections by following the instructions in this section. This system requires three connections: system connection, speaker connection and AC supply connection. However, the order of these connections is not important.
Never plug the AC supply lead of this system into the outlet until all connections are completed.
s Making a system connection between the center speaker (NX-AVS7) and the power amplifier/subwoofer (SW-AVS7) 1
Connect the SYSTEM CONNECTOR terminals on both units with each other using the provided system connector cable. * When connecting the system connector cable to both terminals, note the directions of each SYSTEM CONNECTOR terminals face. Connect the AUDIO OUTPUT terminals on the TV to the INPUT1 terminals on the SW-AVS7 using the provided connection cord. * Be sure to connect the red plug of the connection cord to the R (right) terminal and the white plug to the L (left) terminal.
Connect the INPUT 2 terminals to the AUDIO output terminals of a CD, MD, laser disc player or DVD player. Caution Be careful not to damage the system connector cable by placing something heavy on the cable, putting metal fittings on the cable, or tugging the cable. Damaging the cable may cause the system to break down.
Connection to a TV with an AUDIO OUT terminal
System connector cable (provided) Center speaker (NX-AVS7)

SYSTEM CONNECTOR

System connector Power amplifier/subwoofer (SW-AVS7)

VIDEO INPUT

AUDIO AUDIO INPUT OUTPUT

THROUGH

Set the volume control of the TV to the minimum setting. VCR
Audio connection cord (provided)
VIDEO AUDIO OUTPUT OUTPUT

CD or MD player

AUDIO OUTPUT
*1 : Video connection cable (optional) *2,3 : Audio connection cable (optional)

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CONNECTIONS English Connection to a TV without an AUDIO OUT terminal

Connect the SYSTEM CONNECTOR (Refer to page 12). Connect the AUDIO OUTPUT terminals on the VCR to the INPUT1 terminals on the SW-AVS7.
Connect the THROUGH terminals of INPUT 1 to the AUDIO INPUT terminals on the TV using connector cable (optional). * A signal is applied to INPUT 1 at the THROUGH terminals only when the AV-S7 is off. Connect the INPUT 2 terminals (Refer to page 12).

System connector

Power amplifier/subwoofer (SW-AVS7)

VIDEO INPUT AUDIO INPUT

*1 VCR
If the AV-S7 system is set to STANDBY or the turned off, the signal applied to INPUT 1 is sent to the THROUGH terminal of INPUT 1. Use the volume control of the TV when playing back sound from the TV or VCR without using the AV-S7.

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s Connecting the speakers to the power amplifier/subwoofer (SW-AVS7)
Right front speaker Left front speaker Right rear speaker Left rear speaker
s Connecting the AC supply lead
After completing all connections, plug the AC supply lead into a convenient outlet. VOLTAGE SELECTOR For General and China models only The voltage selector on the bottom of the power amplifier/subwoofer (SW-AVS7) must be set for your local main voltage BEFORE plugging it into the AC main supply. Voltages are 110/120/220/240V AC, 50/60 Hz.
Unplug the AC supply lead from the outlet if this system is not to be used for a long period of time.
MAIN POWER switch For U.K. and Europe models only Setting this to ON switches the AV-S7 system to STANDBY mode. To start the system, press the STANDBY/ON button on the center speaker or the POWER button on the remote control transmitter.

To outlet

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CONNECTIONS English

Connect the provided speakers to the SPEAKERS terminals on the rear of the SW-AVS7. All of the speakers are identical. The speakers connected to the FRONT R and L terminals should be used as the right and left front speakers. The speakers connected to the REAR R and L terminals should be used as the right and left rear speakers.

How to Connect:

Connect the provided speaker cords between the SPEAKERS terminals on the power amplifier/subwoofer (SW-AVS7) and the speaker terminals on each speaker as shown below. If the connections are incorrect, no sound will be heard from the speakers. Make sure that the polarity of the speaker wires is correct with reference to the + and markings. If these wires are reversed, the sound will be unnatural and lack bass. To avoid mistakes, connect the wire with a line to the + terminals on both the power amplifier/subwoofer (SWAVS7) and speaker, and connect the wire with no line to the terminals on both of them. Caution Do not let the bare speaker wires touch each other as this could damage the SW-AVS7 and/or the speakers.

Notes Do not connect speakers to the SW-AVS7 other than the provided ones. Use the provided speaker cords for the connections. Normally, use the short cords to connect to the front speakers, and use the long ones to connect to the rear speakers. The four cords are marked FRONT L, FRONT R, REAR L and REAR R for your reference.
On the SW-AVS7: Red: positive (+) Black: negative ()
Lift up the tab. Insert the bare wire.
[Remove approx. 5mm (1/4) insulation from the speaker wires.] Press down the tab and secure the wire.
On the FRONT and REAR speakers (NX-AV1): Red: positive (+) Black: negative ()
Press the tab. Insert the bare wire.
[Remove approx. 5mm (1/4) insulation from the speaker wires.] Release the tab and secure the wire.

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CONTROLS AND THEIR FUNCTIONS
CENTER SPEAKER (WITH CONTROL UNIT)

VOLUME C R

D: Sports E: Mono Movie Check the PROGRAM indicator 7 when making the selection.

1 INPUT selector button

This button switches between INPUT 1 and INPUT 2 each time it is pressed. Check the INPUT 1/2 indicator 5 to see which is in use.
2 STANDBY/ON (Switch) button
This button switches between power-on and standby each time it is pressed. When standby mode is activated, the STANDBY indicator 4 lights up. When the power-on is activated, the STANDBY indicator 4 is off. You can tell that the power is on since the INPUT 1/2 indicator 5 and other indicators are lit up. Standby mode In this state, this unit consumes a very small quantity of power to receive infrared signals from the remote control transmitter.

4 STANDBY indicator

This indicator lights up when in standby mode.

5 INPUT 1/2 indicators

These indicators light up to show whether INPUT 1 or 2 is selected.

6 VOLUME indicators

These indicators light up according to the setting of the VOLUME buttons 9 on the remote control transmitter.

7 PROGRAM indicators

These indicators light up to show the selected DSP program.
3 PROGRAM selector button
This button is used for selecting the DSP program. The selections cycle through ABCDEOFFA when pressed. A: Dolby Pro Logic Enhanced B: Dolby Pro Logic C: Concert
The sensor is a window for receiving the signal from the remote control transmitter.

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CONTROLS AND THEIR FUNCTIONS English
REMOTE CONTROL TRANSMITTER
A PROLOGIC B SPORTS D CONCERT C MONO MOVIE E

AMP POWER

1 POWER button
This button turns on the power to this system and switches this system to standby mode alternately.

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ADJUSTMENTS BEFORE LISTENING OPERATIONS English
SPEAKER BALANCE ADJUSTMENT
This procedure lets you adjust the sound balance between the front, center, and rear speakers using the built-in test tone generator. When this adjustment is performed, the sound output level heard at the listening position will be the same from each speaker. This is important for the best performance of the built-in Dolby Pro Logic surround decoder. The adjustment of each speaker output level should be done at your listening position with the remote control transmitter. Otherwise, the result may not be satisfactory.
1 Press the STANDBY/ON button (or the POWER 1
button on the remote control transmitter) to turn the power on.

2 Press the VOLUME

to minimum.
button to reduce the volume
3 Press the TEST button. Make sure that B of the
PROGRAM indicators light up. volume.
4 Press the VOLUME + button to increase the
You will hear a test tone from the left front speaker, the center speaker, the right front speaker, and then the rear speakers, for about two seconds each. The test tone from the left rear speaker and the right rear speaker will be heard at the same time.
5 Press the CENTER level (+/) buttons to adjust the 4 2
volume of the center speaker to the same level as the front speakers. Be sure to always press the CENTER level buttons while a test tone is being emitted from the center speaker.
6 Press the REAR level (+/) buttons to adjust the
volume of the rear speakers to the same level as the front speakers. Be sure to always press the REAR level buttons while a test tone is being emitted from the rear speakers. button to stop the test signal.
7 When all the speakers are adjusted, press the TEST
The test tone is emitted. The indicators shown in the figure blink.
Note Once each speaker is adjusted, the system volume can be adjusted to the desired level using the VOLUME (+/) buttons on the remote control transmitter.

Left front

Right front

Rear (L, R)

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USING THE AV-S7

This system incorporates a sophisticated, multiprogram digital sound field processor. The processor allows you to electronically expand and change the shape of the audio sound field from both audio and video sources, creating a theater-like experience in your listening room. You can create an excellent audio sound field by selecting a suitable sound field program (this will, of course, depend on what you will be listening to) and adding desired adjustments. In addition, this unit incorporates a Dolby Pro Logic Surround decoder for multi-channel sound reproduction of sources encoded with Dolby Surround. The operation of the Dolby Pro Logic Surround decoder can be controlled by selecting the DSP program, PRO LOGIC or PRO LOGIC ENHANCED.
Brief Overview of Digital Sound Field Programs
The following list gives you a brief description of the sound fields produced by each DSP program. Keep in mind that most of these are precise digital recreations of actual acoustic environments. The data for these sound fields was recorded at actual locations using sophisticated sound field measurement equipment. Note The channel level balance between the left and right rear effect speakers may vary depending on the sound field you are listening to. This is because most of these sound field recreations are actual acoustic environments.
FEATURE This program is used for playing of sources encoded with Dolby Surround. Enhancing the Normal Dolby Pro Logic, the DSP technology simulates the multi-surround speaker systems of a 35 mm movie theater. This effect creates a wide surround sound field, and expands the sound stage with an improved presence image. This program is used for musical based movies, as well as drama and comedy based movies. This program is also used for playing of sources encoded with Dolby Surround. The application of a sophisticated digital signal processing system reduces crosstalk and directs or steers the sound source more smoothly and precisely, as compared to conventional types. This program is effective for music videos and gives excellent depth and clarity for vocals. For opera, the orchestra and stage are ideally recreated, making you feel as if you were in an actual concert hall. This program is ideal for enjoying sports programs which take place in arenas, indoor stadiums, or other venues. This program is designed specifically to enhance mono source programs. Compared to a strictly mono setting, the sound image created in this mode is wider and slightly forward of the speaker pair, lending an immediacy to the overall sound. It is particularly effective when used with old mono movies, news broadcasts and dialog.

PRO LOGIC ENHANCED

PRO LOGIC

CONCERT

SPORTS

MONO MOVIE

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USING THE AV-S7 English

Listening to a source with sound effects by digital sound field processing (including Dolby Pro Logic Surround decoding) 1 Press the POWER button.
When the system is turned on, the STANDBY indicator turns off, and INPUT indicator 1 or 2 lights up.
2 Press the VOLUME button to lower the volume. 3 Use the INPUT selector button to select the listening
source. INPUT 1: INPUT 2: For playing a TV or VCR For playing audio signals from a CD player or MD player connected to INPUT 2
4 Play the source. 5 Press the VOLUME + button to adjust the volume

to the desired level.

6 Use the PROGRAM selector button to select the
DSP program (A, B, C, D, or E) matching the play source. * The PROGRAM selector button on the center speaker cycles through ABCDEOFFA when pressed. * Check the program settings at the PROGRAM indicator.
7 The volume for all speakers can be adjusted
simultaneously with the VOLUME button.
Press the PROGRAM selector button on the center speaker to select the programs shown below.
PRO LOGIC ENHANCED PRO LOGIC CONCERT SPORTS MONO MOVIE OFF
Notes Program selection can be made for individual input sources. Once you select a program, it is linked with the input source selected at that time. So, when you select the input source next time, the same program is automatically called. q If you prefer to cancel the DSP, press the DSP OFF button. The sound will be the normal 2-channel stereo without the surround sound effect. q When CONCERT, SPORTS or MONO MOVIE is selected, no sound is heard from the center speaker. q When a monaural sound source is played with DOLBY PRO LOGIC or DOLBY PRO LOGIC ENHANCED, sound is heard from the center speaker and subwoofer. q If the AV-S7 system is set to STANDBY or turned off, the signal applied to INPUT 1 is sent to the THROUGH terminals of INPUT 1.

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Adjusting the center speaker volume
If desired, you can adjust the volume level of the center speaker even if the volume is already set in SPEAKER BALANCE ADJUSTMENT on page 19. By continuously pressing the CENTER (+ or ) button, the volume value changes continuously. Notes q This adjustment can be made only when the digital sound field program DOLBY PRO LOGIC or DOLBY PRO LOGIC ENHANCED is selected. q Once the volume level is adjusted, the volume value will be the same in all the digital sound field programs mentioned above.

No sound from a speaker. No sound from speakers.

GENERAL

Connect properly. Unplug the AC supply lead from the wall outlet, and then plug it in again. Connect it properly. Raise the volume level of the rear speakers. Select the appropriate program. Raise the volume level of the center speaker. Select the appropriate program. Connect the cords correctly. If the problem persists, the cords may be defective. Make a proper input source selection. Replace batteries. Use within 6 m and 60 of the sensor. Change the position of the center speaker.
No sound from the rear speakers.
No sound from the center speaker.
The volume level of the center speaker is set to minimum. Incorrect DSP program selection. No DSP program is selected.
No sound from an external unit connected with this system.

REMOTE CONTROL

Incorrect cord connections. Input source selection is not correct.
The remote control transmitter does not work.
Batteries are dead. Remote control transmitter is too far away or is being used at an incorrect angle. Direct sunlight or lighting (an inverter type flourescent lamp) is striking the remote control sensor of the center speaker.

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SPECIFICATIONS
As a part of its policy of continued product improvement, YAMAHA reserves the right to make design and specification changes without prior notice. The performance specification figures indicated are the nominal values for production units.

s Amplifier Section

Minimum RMS Output Power per Channel Front L, R 6 ohms, 1 kHz, 10% THD.. 30W+30W 6 ohms, 1 kHz, 0.9% THD. 25W+25W Center 6 ohms, 1 kHz, 10% THD.. 30W 6 ohms, 1 kHz, 0.9% THD. 25W Rear L, R 6 ohms, 1 kHz, 10% THD.. 30W+30W 6 ohms, 1 kHz, 0.9% THD. 25W+25W Subwoofer 4 ohms, 100 Hz, 10% THD.. 50W 4 ohms, 100 Hz, 0.9% THD.. 40W DIN Standard Output Power per Channel [Europe model only] 6 ohms, 1 kHz, 1% THD.. 25W IEC Power [Europe model only] 6 ohms, 1 kHz, 0.1% THD.. 20W Input Sensitivity/Impedance INPUT 1.. 100 mV/20 k-ohms Total Harmonic Distortion (1 kHz) INPUT 1 (12.5W/6 ohms).. 0.08% Signal-to-Noise Ratio (IHF-A Network) INPUT 1.. 85 dB
Impedance Front, Rear... 6 ohms Center.. 6 ohms Subwoofer.. 4 ohms

s General

Power Supply [U.S.A. and Canada models]. AC 120V, 60 Hz [U.K. and Europe models]..AC 230V, 50 Hz [Australia model].. AC 240V, 50 Hz [General and China models]..AC 110/120/220/240V, 60/50 Hz Power consumption... 155W Dimensions (W x H x D) SW-AVS7.. 250 (W) x 425 (H) x 418 (D) mm (9-13/16 x 16-3/4 x 16-7/16) NX-AVS7. 280 (W) x 117 (H) x 125 (D) mm (11 x 4-10/16 x 4-14/16) NX-AV1. 94 (W) x 117 (H) x 108 (D) mm (3-11/16 x 4-10/16 x 4-1/4) Weight SW-AVS7.. 14.5 kg (31 lbs. 15 oz.) NX-AVS7.. 1.3 kg (2 lbs. 14 oz.) NX-AV1.. 0.7 kg (1 lbs. 9 oz.)