AVEEA71102A English Important Notice: Guarantee Information for customers in EEA* and Switzerland For detailed guarantee information about this Yamaha product, and Pan-EEA* and Switzerland warranty service, please either visit the website address below (Printable file is available at our website) or contact the Yamaha representative office for your country. * EEA: European Economic Area I ntegrated Am pl ifier http://europe.yamaha.
CAUTION: READ THIS BEFORE OPERATING YOUR UNIT. CAUTION: READ THIS BEFORE OPERATING YOUR UNIT. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 To assure the finest performance, please read this manual carefully. Keep it in a safe place for future reference. Install this sound system in a well ventilated, cool, dry, clean place - away from direct sunlight, heat sources, vibration, dust, moisture, and/or cold. For proper ventilation, allow the following minimum clearances. Top: 10 cm (4 in.
CAUTION: READ THIS BEFORE OPERATING YOUR UNIT. ■ For U.K. customers If the socket outlets in the home are not suitable for the plug supplied with this appliance, it should be cut off and an appropriate 3 pin plug fitted. For details, refer to the instructions described below. Note The plug severed from the mains lead must be destroyed, as a plug with bared flexible cord is hazardous if engaged in a live socket outlet. ■ Special Instructions for U.K.
INTRODUCTION CONTENTS INTRODUCTION ................................................................... 2 What the unit can do ......................................................................................2 Supplied accessories......................................................................................2 NAMES AND FUNCTIONS OF THE PARTS ..................................... 3 Front panel .....................................................................................................
NAMES AND FUNCTIONS OF THE PARTS NAMES AND FUNCTIONS OF THE PARTS Front panel (A-U670) 1 A (Power) button Turns this unit on, or sets it to standby mode. Notes In standby mode, the unit consumes a small amount of power. 2 Power indicator Lights up when the unit is turned on. 3 PHONES jack Connect your headphones. Notes When headphones are connected, no sound comes from the speakers or subwoofer. 4 BASS control Increases or decreases the low frequency response.
NAMES AND FUNCTIONS OF THE PARTS Rear panel (A-U670) 1 USB DAC (Type B) jack (A-U670 only) Used to connect a PC (☞page 5). 5 SPEAKERS terminals Used to connect speakers (☞page 5). 2 ANALOG IN jacks Used to connect a network CD player (☞page 5). 6 Power cable 3 SYSTEM jack Used to connect a network CD player (☞page 5). 4 SUBWOOFER jack Used to connect a subwoofer with built-in amplifier (☞page 5).
CONNECTIONS CONNECTIONS Make sure to connect L (left) to L, R (right) to R, “+” to “+” and “–” to “–.” If the connections are faulty, no sound may be heard from the speakers, and if the polarity of the speaker connections is incorrect, the sound may be unnatural and lack bass. Refer to the owner’s manual for each of your components. Make sure to use RCA type cables, the supplied system connection cable, or a commercially available USB cables (A-U670 only) to connect audio components.
CONNECTIONS ■ Connecting speaker cables 1 Remove approximately 10 mm (3/8”) of insulation from the end of each speaker cable. 2 Twist the bare wires of the cable firmly together. Connecting a subwoofer To use a subwoofer, connect the jack of the subwoofer to the SUBWOOFER jack of the unit as shown in the figure. 3 Unscrew the knob. 4 Insert one bare wire into the hole in the side of each terminal. 5 Tighten the knob to secure the wire.
PLAYBACK PLAYBACK Playing a source Auto power standby function • The auto power standby function will be activated as follows (default setting). - VOLUME The unit turn off automatically if no operation has been performed for more than 8 hours. Activating/deactivating the auto power standby function 1 While pressing and holding A (power) on the unit, plug in the power cable to the AC outlet. 2 Keep pressing A (power).
PLAYING BACK MUSIC STORED ON A PC (USB DAC FUNCTION) (A-U670 ONLY) PLAYING BACK MUSIC STORED ON A PC (USB DAC FUNCTION) (A-U670 ONLY) When a PC is connected to the USB DAC jack of the unit, the unit works as a USB DAC and can play back songs stored on the PC. Rear panel ■ Installing the dedicated driver Before connecting a PC to this unit, install the dedicated driver on the PC. The dedicated driver is available only for Windows. For Mac, the standard driver of Mac OS is available for setting.
PLAYING BACK MUSIC STORED ON A PC (USB DAC FUNCTION) (A-U670 ONLY) ■ Playing back music stored on a PC Check if the SYSTEM jacks of the network CD player and of the unit are connected to each other. If not connected, operation is unavailable with the network CD player and its remote control. 6 Operate the PC to start playback of music files.
ADJUSTING TO THE DESIRED SOUND (A-U670 ONLY) ADJUSTING TO THE DESIRED SOUND (A-U670 ONLY) INTERLOCKING WITH A NETWORK CD PLAYER Operation is available with the remote control of the network CD player (CD-NT670/CDNT670D). Check if the SYSTEM jacks of the unit and the network CD player are connected to each other. Operating the power with the remote control Pressing the A (power) button of the remote control causes the unit to turn on or enter the standby mode by interlocking with the network CD player.
TROUBLESHOOTING TROUBLESHOOTING Refer to the chart below if this unit does not function properly. If the problem you are experiencing is not listed below or if the instructions below do not help, turn off this unit, disconnect the power cable, and then contact the nearest authorized Yamaha dealer or service center. Problem This unit fails to turn on. This unit turns off suddenly and the power indicator turns off. No sound. The unit cannot be turned off.
TROUBLESHOOTING Problem Only the speaker on one side can be heard. There is a lack of bass and no ambience. Cause Solution See page Incorrect cable connections. Connect the cables properly. If the problem persists, the cables may be defective. 5 Incorrect setting for the BALANCE control. Set the BALANCE control to the appropriate position. 3 (When a subwoofer is connected.) The subwoofer is not properly connected. Connect the cables properly.
SPECIFICATIONS SPECIFICATIONS AUDIO SECTION GENERAL ■ ANALOG IN • Power supply .......................................... AC 220 to 240 V, 50/60 Hz • Input jack ............................................................................RCA jack ■ USB DAC (A-U670 only) • Power consumption [A-670] ...................................................................................... 28 W [A-U670] ................................................................................... 30 W • Input jack ...
AVEEA71102A English Important Notice: Guarantee Information for customers in EEA* and Switzerland For detailed guarantee information about this Yamaha product, and Pan-EEA* and Switzerland warranty service, please either visit the website address below (Printable file is available at our website) or contact the Yamaha representative office for your country. * EEA: European Economic Area I ntegrated Am pl ifier http://europe.yamaha.