AB NX-B55 BLUETOOTH SPEAKER SYSTEM OWNER’S MANUAL Features Plays a variety of contents with high-quality sound. Playing wirelessly via Bluetooth and connecting the audio cable to AUDIO INPUT connector allows you to connect a variety of external devices, such as mobile phones, computers, portable players, etc. AUTO STANDBY When no sound is input for a period of time, the speakers go to standby mode automatically. Since you do not have to turn on/off the power every time, you can save energy.
Caution: Read this before operating your unit. To assure the finest performance, please read this manual carefully. Keep it in a safe place for future reference. 1 Install this unit 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.
SPECIAL INSTRUCTIONS FOR U.K. MODEL IMPORTANT THE WIRES IN THE MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE: Blue: NEUTRAL Brown: LIVE As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows: The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
Controls and functions 1 Headphones connector (3.5 mm stereo mini jack) Use for a headphones connection. When headphones are connected, sound is not output through the speakers. Notes To protect your hearing, make sure that the volume is low before headphones are used. • Do not use headphones with a loud volume for a long time. Otherwise, your hearing may be damaged. • Make sure that the volume of the audio devices is at minimum before headphones are connected. A sudden loud sound may damage your hearing.
Controls and functions Viewing the p (power) button from the side… Off On 3 p (power)/indicator (LED) When you press p (power), this unit will turn on and the indicator will light up. Note Even when this unit is turned off or is in standby mode, it consumes a small amount of electricity. 4 AUTO STANDBY switch • ON: Activates the auto-standby mode (ON in default setting, ☞ page 3). • OFF: Deactivates the auto-standby mode (☞ page 3). • INIT.: Initializes the Bluetooth pairing data (☞ page 7).
AUTO STANDBY This unit has a function that automatically activates standby mode (power save mode) when no audio signal is input from a connected device, or when the connected device is playing at a low volume for a certain period (about 30 minutes). In standby mode, the indicator light turns off. Activates the auto-standby mode Off 2 Deactivating the auto-standby mode If this unit enters standby mode while you are using it, perform either of the steps below, or . Adjust the volume.
Connections Connect an external device using the supplied cable. R speaker (Right) Rear panel L speaker (Left) R speaker (Right) Rear panel R speaker (Right) Rear panel 3.5 mm stereo mini plug cable (supplied) Connect to the output connector of the connected device. Connect the supplied 3.5 mm stereo mini plug cable between AUDIO INPUT and the external device (TV, computer, etc.), as illustrated. For details, see the external device’s operating instructions. Connect via Bluetooth.
Bluetooth connection for playing music This unit enables you to enjoy music playback wirelessly with a Bluetooth device (such as mobile phones, computers, portable players, etc.) by pairing (registering) with the device and establishing a Bluetooth connection with this unit. Notes Install in a stable place. Do not place on top of steel or other metal. Do not cover with a cloth, etc.
Bluetooth connection for playing music Playback via Bluetooth connection On PLAY a Press p (power) to turn on this unit. b Operate the paired other device to establish the Bluetooth connection. The status indicator lights up in blue when Bluetooth connection is completed. c Start playback of the other device. d Adjust the volume level using the VOL (volume) control of this unit. Some devices can be connected automatically while pairing. In that case, you can omit step a and b.
Bluetooth connection for playing music Switching to another Bluetooth device Clearing all the pairing data Only one other device can be connected to this unit at the same time. If you want to switch the currently connected device to another one, perform the following steps. a Perform either of the steps below, Off or . On (within 5 seconds) Press p (power) to turn off this unit once. Then, press p (power) to turn on this unit within 5 seconds.
Troubleshooting Refer to the table below if the unit does not operate properly. If the problem you are experiencing is not listed below, or if the instruction does not help, turn off the unit, disconnect the power cable, and contact the nearest authorized Yamaha dealer or service center. ■ General Symptoms Causes This unit is not turned on. The AC adaptor is disconnected from the wall outlet or 12V (DC 12V). The p (power) is not turned on. This unit and the other device are not connected correctly.
Troubleshooting Symptoms The sound is muted automatically. Causes Auto-standby is functioning. Auto-standby is not functioning. The AUTO STANDBY switch is set to OFF. Catching external noise. Auto-power on does not work. The volume of the other device is low. The played audio is too short. There is sound from the TV, even though this unit and TV are connected by an audio cable. The TV is not suitably set.
Troubleshooting Symptoms No sound is produced or the sound is interrupted during playback. Causes The iPhone/iPad/iPod touch stores any recently paired device in memory to allow connection with the same device again later. If NX-B55 is initialized, the iPhone/iPad/iPod touch will recognize it as a different device. The other device is not connected to this unit by Bluetooth. The distance between this unit and the Bluetooth device is too long. There is a device (microwave oven, wireless LAN, etc.
Specifications Status indicator (LED) Indicator (LED) off Power Bluetooth Auto Connection Power off/ Standby - on Green (lights up) Green (flashes for several seconds, then lights up) Blue (lights up) Blue Green Green ... *2 (changes rapidly) Power on not connected off*1 connected - - - *1: If you perform the steps in “Switching to another Bluetooth device” (☞ page 7), the indicator flashes in green for several seconds, and then Auto Connection will be disabled for about 5 minutes.
Specifications Bluetooth • Bluetooth is a technology for wireless communication between devices within an area of about 10 meters (33 ft) employing the 2.4 GHz frequency band, a band which can be used without a license. • Bluetooth is a registered trademark of the Bluetooth SIG and is used by Yamaha in accordance with a license agreement. Handling Bluetooth communications • The 2.4 GHz band used by Bluetooth compatible devices is a radio band shared by many types of equipment.
© 2013 Yamaha Corporation Printed in China ZJ05580
