Note to CATV system installer: This reminder is provided to call the CATV system installers attention to Article 820-40 of the NEC 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.
POWER SERVICE GROUNDING ELECTRODE SYSTEM (NEC ART 250. PART H)
NEC NATIONAL ELECTRICAL CODE
FCC INFORMATION (for US customers)
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. 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. 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.

I Speaker placement

Refer to the following diagram when you place the speakers.
Center speaker Main speaker (R) Rear speaker (R) Subwoofer Main speaker (L)

1.8 m (6 feet)

Rear center speaker Rear speaker (L)
Main speakers Place the main left and right speakers an equal distance from the ideal listening position. The distance between each speaker and each side of the video monitor should also be the same. Center speaker Align the front face of the center speaker with the front face of your video monitor. Place the speaker as close to the monitor as possible (such as directly over or under the monitor) and centrally between the main speakers. Rear speakers Place these speakers behind your listening position, facing slightly inwards, about 1.8 m (6 feet) above the floor. Rear center speaker Place the rear center speaker in the center between the rear left and right speakers at the same height from the floor as the rear speakers. Subwoofer The position of the subwoofer is not so critical, because low bass sounds are not highly directional. However, it is better to place the subwoofer near the main speakers. Turn it slightly toward the center of the room to reduce wall reflections.
If you do not use any of effect speakers (rear, center and/or rear center), change the settings of SOUND 1 SPEAKER SET items at the set menu to direct signals to other terminals you have connected speakers to.
CAUTION Use magnetically shielded speakers. If these speakers still create interference with the monitor, place the speakers away from the monitor.

I Connections

Be sure to connect the left channel (L), right channel (R), + (red) and (black) in accordance with the markers on this unit, the speakers, and the speaker cables. If the connections are faulty, no sound will be heard from the speakers, and if the polarity of the speaker connections is incorrect, the sound will be unnatural and lack bass.
CAUTION Use speakers with the specified impedance shown on the rear panel of this unit. Do not let the bare speaker wires touch each other or any metal part of this unit. This could damage this unit and/or the speakers.
A speaker cord is actually a pair of insulated cables running side by side. One cable is colored or shaped differently, perhaps with a stripe, groove or ridge.

* [Canada model only] When the switch is set to right, you cannot use A+B.
Main A speaker Right Left

Subwoofer system

Rear speaker Left Right
SPEAKERS IMPEDANCE SELECTOR SET BEFORE POWER ON
MAIN A OR B : 4MIN. /SPEAKER MAIN A OR B : 8MIN. /SPEAKER A+B : 8MIN. /SPEAKER A+B : 16MIN. /SPEAKER CENTER : 6MIN. /SPEAKER CENTER : 8MIN. /SPEAKER REAR CENTER : 6MIN. /SPEAKER REAR CENTER : 8MIN. /SPEAKER REAR : 6MIN. /SPEAKER REAR : 8MIN. /SPEAKER

Center speaker

Rear center speaker
Right Left Main B speaker
MAIN SPEAKERS terminals You can connect up to two speaker systems to these terminals. When using only one speaker system, connect it to either of the MAIN A or the MAIN B terminals. REAR SPEAKERS terminals A rear speaker system can be connected to these terminals. CENTER SPEAKER terminals A center speaker can be connected to these terminals. REAR CENTER SPEAKER terminals A rear center speaker can be connected to these terminals.
The diagram shows the speaker layout in the listening room.
SUBWOOFER jack When using a subwoofer with built-in amplifier, including the YAMAHA Active Servo Processing Subwoofer System, connect the input jack of the subwoofer system to this jack. This unit will direct low bass signals distributed from the main, center and/or rear channels to this jack in accordance with your SPEAKER SET selections. The LFE (lowfrequency effect) signals generated when Dolby Digital or DTS is decoded are also directed to this jack in accordance with your SPEAKER SET selections.
The cut-off frequency of the SUBWOOFER jack is 90 Hz. If you do not use a subwoofer, allocate the signals to the main left and right speakers by changing the setting of SOUND 1 SPEAKER SET item 1E BASS on the set menu to MAIN. Use the control on the subwoofer to adjust its volume level. You can also adjust the volume level by using this units remote control (see SETTING THE SPEAKER LEVELS on page 51).
Connecting the power supply cords

VOLTAGE SELECTOR

Turning on the power
When all connections are complete, turn on the power of this unit.

VOLTAGE SELECTOR AC OUTLETS

SWITCHED

BASS VIDEO AUX SPEAKERS A B STEREO PROGRAM A/B/C/D/E PRESET/TUNING

TRANSMIT

RE-NAME

POWER TV

I Connecting the AC power cord
Plug in this unit to a wall outlet.

I AC OUTLETS (SWITCHED)

U.S.A., Canada, China, Europe, Singapore and General models... 2 OUTLETS U.K. and Australia model.. 1 OUTLET Use these outlets to connect the power cords from your components to this unit. The power to the AC OUTLETS is controlled by this units STANDBY/ON (or SYSTEM POWER and STANDBY). These outlets will supply power to any source component connected to this unit whenever this unit is turned on. The maximum power (total power consumption of components) that can be connected to the AC OUTLETS varies depending on the area which it was purchasing. China and General models... 50 W Other models.. 100 W
Press STANDBY/ON (SYSTEM POWER on the remote control) to turn on the power of this unit.
The level of the main volume, and then the current DSP program name appear on the front panel display.
I VOLTAGE SELECTOR (China and General models only)
The VOLTAGE SELECTOR on the rear panel of this unit must be set for your local main voltage BEFORE plugging into the AC main supply. Voltages are 110/120/ 220/240 V AC, 50/60 Hz.

ON-SCREEN DISPLAY (OSD)

You can display operational information for this unit on a video monitor. It is much easier to see the available options and parameters on a monitor than by reading this information on the front panel display.

I Selecting the OSD mode

If a video source is playing, the OSD is superimposed over the video image. The OSD signal is not output to the OUT (REC) jack, and will not be recorded with any video signal. You can set the OSD to turn on (gray background) or off when there is no video signal using OPTION 1 DISPLAY SET on the set menu.

REC AUDIO DISC SKIP

LEVEL TITLE

TV INPUT

A/B/C/D/E

PRESET TEST

PRESET ON SCREEN

Using the basic menu

Use the remote control to make adjustments. Press SPEAKERS A or B on the front panel to select the main speakers you want to use. Make sure you disconnect headphones from this unit.
POWER TV REC AUDIO DISC SKIP VOL POWER AV AMP
Press u / d to change the display to the setting you want to alter. SETUP Changes the speaker and amplifier settings to suit the size of the room you are using. Refer to Setting the unit to match your speaker system for more information. SP LEVEL Adjusts the output levels of the speakers. Refer to Setting speaker output levels for more information.

4,7 3,5

Press j / i to enter the desired setting mode. Change the unit settings to suit your listening environment. When you have finished, the unit will automatically return to the basic menu. Press u / d to exit from the set menu. The front panel display changes in the following order:
Press AMP to set the remote control in AMP mode. Check that AMP is showing in the display on the remote control. Press SET MENU. BASIC MENU appears on the front panel display, as shown here.

BASIC MENU

If the front panel display changes to show anything other than BASIC MENU, press u until it displays BASIC MENU.

BASIC SOUND INPUT OPTION

Press j / i to enter into the BASIC menu. The front panel display changes as shown here:

1 SETUP

0104RX-V740_20-22_EN-U.p03.1.10, 6:31 PM

BASIC SOUND INPUT OPTION

Press j / i to alter the settings for each parameter. Use d to move to the next setting.

2 SP LEVEL

Press j / i to adjust the balance between each speaker and the left main speaker. Use d to move to the next setting.

1 ROOM

Choose from S/M/L.
Adjust the balance between the main left and right speakers.

2 SUBWOOFER

Choose either of YES/NONE.
Adjust the balance between the main left and center speakers.

3 SPEAKERS

Choose from 2/3/4/5/6 spk.
Adjust the balance between the main left and rear left speakers.

CANCEL 4 SET/CANCEL

Choose either of SET/CANCEL.
Adjust the balance between the rear left and rear center speakers.

SET YES

5 CHECK OK:

Choose either of YES/NO.

Adjust the balance between the rear left and rear right speakers.

6 SWFR

Adjust the balance between the main left speaker and the subwoofer.

I BGV (background video) function
The BGV function allows you to view images from a video source together with sounds from an audio source. For example, you can enjoy listening to classical music while watching beautiful scenery from a video source on the video monitor. Select a source from the video group, then select a source from the audio group using the input selector buttons on the remote control.

I To mute the sound

Press MUTE on the remote control. To resume audio output, press MUTE again.
If you increase or decrease the high-frequency or the lowfrequency sound to an extreme level, the tonal quality from the center and rear speakers may not match that of the main left and right speakers. If you have connected a recording component to the VCR 1 OUT, VCR 2/DVR OUT, or MD/CD-R OUT jacks, and you notice distortion or low volume during playback from other components, try turning the recording component on.
You can change the amount by which the unit reduces the volume in OPTION 3 AUDIO MUTE in the set menu. You can also cancel mute by pressing VOL +/, etc. During muting, the MUTE indicator flashes on the front panel display.

I Night listening mode

This mode reproduces dialogue clearly while reducing the volume of loud sound effects for easier listening at low volumes or at night. Press NIGHT on the remote control. Press NIGHT once more to return to normal reproduction.
Select a DSP program if desired. Use PROGRAM l / h (DSP program buttons on the remote control) to select a DSP program. See pages for details about DSP programs. When using the remote control, press AMP to set the remote control in AMP mode before selecting a DSP program.
HALL JAZZ CLUB ROCK CONCERT ENTERTAINMENT
Setting the unit in standby mode cancels night listening mode.
You can use night listening mode with any of the sound field programs. The NIGHT indicator on the front panel display lights when the unit is in night listening mode. Night listening mode may vary in effectiveness depending on the input source and surround sound settings you use.

PROGRAM

I When you have finished using this unit

I Virtual CINEMA DSP

With Virtual CINEMA DSP, you can enjoy all DSP programs without rear speakers. It creates virtual speakers to reproduce a natural sound field. You can listen to virtual CINEMA DSP by setting 1C REAR LR in the set menu to NON. Sound field processing changes to VIRTUAL CINEMA DSP automatically.
If you turn off the sound effects, no sound is output from the center speaker, rear speakers, or rear center speaker. If you turn off the sound effects while the unit is reproducing sound from a Dolby Digital or DTS signal, the dynamic range of the signal is automatically compressed and the unit will output mix the sounds of the center and rear speaker channels and output them from the main speakers. The volume may be greatly reduced when you turn off the sound effects or if you set SOUND 4 D. RANGE (dynamic range on the set menu to MIN. In this case turn on the sound effect.
This unit is not set in the virtual CINEMA DSP mode even if 1C REAR LR is set to NON in the following cases: when the 6ch Stereo, DOLBY DIGITAL, Pro Logic, Pro Logic II, or DTS program is selected; when the sound effect is turned off; when 6CH INPUT is selected as the input source; when a digital signal with a sampling frequency greater than 48 kHz is input to this unit; when using the test tone; or when connecting the headphones.
During stereo reproduction, you can display information such as the type, format and sampling frequency of the signal input from the components connected to this unit.

(While playing a source)

I SILENT CINEMA DSP
You can enjoy a powerful sound field similar to what you could expect from actual speakers through headphones, with SILENT CINEMA DSP. You can listen to SILENT CINEMA DSP by connecting your headphones to the PHONES jack while the digital sound field processor is on. The SILENT indicator lights up on the front panel display. (When sound effects are off, the unit reproduces the source in normal stereo.)
Press AMP to set the remote control in AMP mode. Press d to display the information about the input signal.
This feature is not available when 6CH INPUT is selected or the unit is receiving a digital signal with a sampling frequency greater than 48 kHz. The sound from the LFE channel will be mixed and output from the headphones.
I Normal stereo reproduction
Press STEREO/EFFECT to turn off the sound effect for normal stereo reproduction. Press STEREO/EFFECT again to turn the sound effect back on.
(Format): The display shows the signal format. When the unit cannot detect a digital signal it automatically switches to analog input. in: The display shows the number of input signal source channels, as follows: For multi-channel soundtrack such as front 3 channels, rear 2 channels and LFE, the display shows 3/2/ LFE. For bilingual broadcasts where the signal is split into 2 channels, the display shows 1+1. For signals with more than 3 channels the display shows MLT. fs: The display shows the sampling frequency. When the unit is unable to detect the sampling frequency Unknown shows in the front panel display. rate: The display shows the bit rate. When the unit is unable to detect the bit rate Unknown shows in the front panel display. flg: The display shows the flag - data encoded in a DTS or Dolby Digital signal that causes this unit to automatically switch to the appropriate decoder for playback.

Any stored station data existing under a preset number is cleared when you store a new station under that preset number. If the number of the received stations does not reach E8, automatic preset tuning has automatically stopped after searching all stations. Only FM stations with sufficient signal strength are stored automatically by automatic preset tuning. If the station you want to store is weak in signal strength, tune in to it manually in the monaural mode, and store it by following the procedure described in Manually presetting stations.
Automatic preset tuning options You can select the preset number from which this unit will store FM stations and/or begin tuning toward lower frequencies. After pressing MEMORY in step 3: 1. Press A/B/C/D/E and PRESET/TUNING l / h to select the preset number under which the first station will be stored. Automatic preset tuning will stop when stations have all been stored up to E8. 2. Press PRESET/TUNING (EDIT) to turn off the colon (:) and then press PRESET/TUNING l to begin tuning toward lower frequencies. Memory back-up The memory back-up circuit prevents the stored data from being lost even if this unit is set in standby mode, the power cord is disconnected from the AC outlet, or the power supply is temporarily cut due to power failure. However, if the power is cut for more than one week, the preset stations may be cleared. If so, store the stations again.
Press FM/AM to select the FM band.
Press TUNING MODE (AUTO/MANL MONO) until the AUTO indicator lights up on the front panel display.
Press and hold MEMORY (MANL/AUTO FM) for at least 3 seconds. The preset number and the MEMORY and AUTO indicators flash. After about 5 seconds, automatic preset tuning starts, beginning at the frequency currently displayed and moving toward the higher frequencies.

MEMORY MAN`L/AUTO FM

AUTO MEMORY

A1:FM 89.9 MHz

When automatic preset tuning is completed, the front panel display shows the frequency of the last preset station.
I Manually presetting stations
You can store up to 40 stations (8 stations x 5 groups) manually.
Press PRESET/TUNING l / h to select a preset station number (1 to 8) while the MEMORY indicator is flashing. Press h to select a higher preset station number. Press l to select a lower preset station number.

TUNED MEMORY

C3:AM 1440 kHz

Preset number

If you playback a video source that uses scrambled or encoded signals to prevent it from being dubbed, the picture itself may be disturbed due to those signals.
I Special considerations when recording DTS material
The DTS signal is a digital bitstream. Attempting to digitally record the DTS bitstream will result in noise being recorded. Therefore, if you want to use this unit to record sources that have DTS signals recorded on them, the following considerations and adjustments need to be made. For LDs, DVDs and CDs encoded with DTS, follow the operating instructions of your player to set it to output an analog signal, if it is compatible with the DTS format.
Turn on the power of this unit and all connected components. Select the source component you want to record from.
Start playback (or select a broadcast station) on the source component. Start recording on the recording component.
You can set the following parameters on the set menu to obtain a better sound from the unit. Change the settings to reflect the needs of your listening environment.
Adjusting the items on the set menu
Use the remote control to make adjustments.
POWER TV REC AUDIO DISC SKIP POWER AV AMP

Set menu list

The set menus are divided by use and function into the 4 categories listed here.

3,5,8 4,6,7

I BASIC
The BASIC area contains the basic parameters that you must set before using this unit. It consists of the following menus. See pages for a detailed explanation. 1 SETUP 2 SP LEVEL (Speaker level)

I SOUND

The SOUND area contains parameters for altering sound output. It consists of the following menus that you can use to alter the quality and tone of the sound output by the system. 1 SPEAKER SET 2 SP DISTANCE (Speaker distance) 3 LFE LEVEL (Low frequency effect level) 4 D. RANGE (Dynamic range) 5 CENTER GEQ (Center graphic equalizer) 6 HP TONE CTRL (Headphone tone control)
You can change set menu parameters while the unit is reproducing sound. You can use NEXT and SET MENU +/ on the front panel to change these settings, if the unit is not set to TUNER mode. Press NEXT to select the category or field you wish to change, and SET MENU +/ to change the parameters.
You cannot change some set menu parameters while the unit is in night listening mode.

I INPUT

The INPUT area contains parameters concerned with signal input. It consists of the following menus that you can use to change the assignment of input jacks, and rename components. 1 I/O ASSIGN 2 INPUT MODE 3 INPUT RENAME

Using the unit in Zone 2 mode affects the signal that the unit outputs from the VCR 2/DVR OUT jacks. Do not use these jacks if you wish to use Zone 2 functionality.
Example of a system configuration and connections

Main room

Second room
Amplifier CD player (or other component)
CD INPUT REMOTE CONTROL OUT

This unit

Infrared signal receiver Remote control

Infrared emitter

REMOTE CONTROL OUT

REMOTE CONTROL IN

I To enable Zone 2 mode
Set OPTION 5 REC OUT to ZONE 2 on the set menu. The ZONE 2 indicator on the front panel display appears when Zone 2 power is on, even if the main unit is in standby mode.
I Special considerations for playing DTS encoded materials
When playing DTS encoded materials, the analog output jacks of the source component may output excessive noise that could damage your speakers. Due to this characteristic of DTS encoded discs, the following considerations and adjustments need to be made. For LDs or DVDs encoded with DTS Only 2-channel analog audio signals will be sent to the second room. Set your players left and right outputs to the analog soundtrack. For CDs encoded with DTS DO NOT USE the Zone 2 feature for CDs encoded with DTS to avoid unexpected noise.
ZONE 2 (FOR U.S.A., CANADA AND AUSTRALIA MODELS)

Remote Control in Zone 2

You can use the supplied remote control in a second room (Zone 2), as the Zone 2 remote control. You can select the input source and control components located in the main room directly from the second room regardless of the listening conditions in the main room.
You can control the component by using the component control area buttons.

REC AUDIO DISC SKIP VOL

LEVEL TITLE TV VOL
I To enable Zone 2 mode on the remote control
Press CODE SET using a ballpoint pen or similar object. SETUP and the selected component name appear alternately in the display window. Press j / i to select L:AMP.
Press SELECT k / n to exit from the Zone 2 mode.
The MUTE button on the remote control works for the second room. However Zone 2 volume cannot be adjusted with the remote control. Use the control on the amplifier in the second room. CODE SET, CLEAR and RENAME will not function when the remote control is set to ZONE 2 mode.
Press u / d to select ZONE2.
I When you have finished using the unit
To set both the main unit and the Zone 2 in standby mode
Press CODE SET to complete the Zone 2 setup. Immediately after you have configured the remote control for Zone 2, the remote will be to MAIN mode. When the remote is in MAIN mode, you can turn the main unit on, or set it in standby mode independently of the Zone 2 by pressing SYSTEM POWER or STANDBY (MAIN appears on the display window for 2 seconds.)

I Elements of a sound field
In any environment, in addition to the direct sound coming straight to our ears from the players instrument, there are two distinct types of sound reflections that combine to make up the sound field: Early reflections Reflected sounds reach our ears extremely rapidly (50 ms 100 ms after the direct sound), after reflecting from one surface only for example, from the ceiling or a wall. These reflections fall into specific patterns for any particular environment, and provide vital information to our ears. Early reflections actually add clarity to the direct sound. Reverberations These are caused by reflections from more than one surface walls, ceiling, the back of the room so numerous that they merge together to form a continuous sonic afterglow. They are non-directional, and lessen the clarity of the direct sound. Direct sound, early reflections and subsequent reverberation taken together help us to determine the subjective size and shape of the room, and it is this information that the digital sound field processor reproduces in order to create sound fields. If you could create the appropriate early reflections and subsequent reverberations in your listening room, you would be able to create your own listening environment. The acoustics in your room could be changed to those of a concert hall, a dance floor, or virtually any size room at all. This ability to create sound fields at will is exactly what YAMAHA has done with the digital sound field processor.
0110RX-V740_54-59_EN-U.p03.1.10, 6:36 PM
Changing parameter settings
You can enjoy high quality sound with the factory-set parameters. Although you do not have to change the initial settings, you can change some of the parameters to better suit the input source or your listening room. Use the remote control to make adjustments.
Press u / d to select the parameter.
It is advisable to use on-screen display when changing the settings.
Press j / i to change the parameter value.

1 y 2 3

When you set the parameter to a value other than the factoryset value, an asterisk mark (*) appears by the parameter name on the video monitor. To reset to the factory-set value, press j / i repeatedly until the asterisk mark disappears.
Repeat steps 3 to 5 above as necessary to change other program parameters.
Press AMP to set the remote control in AMP mode. Turn on the video monitor and press ON SCREEN repeatedly to select the full display mode.
For some of the programs, the available parameters may be displayed on more than one OSD page. To scroll through pages, press u / d. You cannot change parameter values when OPTION 2 MEM. GUARD on the set menu is set to ON.

Select a DSP program you want to adjust.
Memory back-up The memory back-up circuit prevents the stored data from being lost even if this unit is set in standby mode, the power cord is disconnected from the AC outlet, or the power supply is temporarily cut due to power failure. However, if the power is cut for more than one week, the parameter value you edited will return to the factory setting. If this happens, edit the parameter value again.

Program No.

Program name

P03 ROCK CONCERT

Cursor
DSP LEVEL0dB INIT.DLY15ms ROOM SIZE1.0 LIVENESS5 REV.TIME1.6s REV.DELAY120ms

Parameters

Parameter values
The parameter setting display
Digital Sound Field Parameter Descriptions
You can adjust the values of certain digital sound field parameters so the sound fields are recreated accurately in your listening room. Not all of the following parameters are found in every program.

I DSP LEVEL

Function: Description:
This parameter adjusts the level of all the DSP effect sounds within a narrow range. Depending on the acoustics of your listening room, you may want to increase or decrease the DSP effect level relative to the direct sound. Control Range: 6 dB +3 dB
I INIT. DLY (Initial delay) [P. INT. DLY for the presence sound field]
Function: This parameter changes the apparent distance from the source sound by adjusting the delay between the direct sound and the first reflection heard by the listener. Description: The smaller the value, the closer the sound source seems to the listener. The larger the value, the farther the apparent distance seems. For a small room, this parameter would be set to a small value, and for a large room, it would be set to a large value. Control Range: 1 to 99 msec
Sound source Early reflections

INIT.DLY

Sound source

Reflection face

I ROOM SIZE [P. ROOM SIZE for the presence sound field]
Function: This parameter adjusts the apparent size of the surround sound field. The larger the value, the larger the surround sound field becomes. Description: As the sound is repeatedly reflected around a room, the larger the hall is, the longer the time between the original reflected sound and the subsequent reflections. By controlling the time between the reflected sounds, you can change the apparent size of the virtual venue. Changing this parameter from one to two doubles the apparent length of the room. Control Range: 0.1 to 2.0
Sound source Early reflections Time

Set GRAY BACK to AUTO to always show the OSD.
Connect the cables properly. If the problem persists, the cables may be defective. Select an appropriate input source with INPUT or 6CH INPUT (or the input selector buttons). Secure the connections. Select the main speakers with SPEAKERS A and/or B. Turn up the volume. Press MUTE or any operation buttons on the unit to cancel mute and adjust the volume. Play a source whose signals this unit can reproduce.
The speaker connections are not secure. The main speakers have not been selected properly. The volume is turned down. The sound is muted.
Digital signals which this unit cannot reproduce are being received from a source component e.g; a CD-ROM. The picture does not appear. The output and input for the picture are connected to different types of video jacks.
Connect components using the same type of video jacks (S VIDEO, VIDEO (composite), or COMPONENT VIDEO) for both the input and output.
0111RX-V740_60-66_EN-U.p03.1.10, 6:37 PM

Problem

Remedy

Refer to page

The sound suddenly goes off.
The protection circuit has been activated because of a short circuit, etc.
Check the IMPEDANCE SELECTOR switch is set to the appropriate position and then turn the unit back on. Check the speaker wires are not touching each other and then turn the unit back on.
The sleep timer has turned the unit off. The sound is muted.
Turn on the power, and play the source again. Press MUTE or any operation buttons on the unit to cancel a mute and adjust the volume. Connect the cables properly. If the problem persists, the cables may be defective.
Only the speaker on one side can be heard. No sound from the effect speakers.
Incorrect cable connections.
The sound effect is switched off. A Dolby Surround, Dolby Digital or DTS decoding DSP program is being used with material not encoded with Dolby Surround, Dolby Digital or DTS. A digital signal with a sampling frequency greater than 48 kHz is input to this unit.
Press STEREO/EFFECT to turn it on. Select another DSP program.

26 31

No sound from the center speaker.