
TROUBLESHOOTING
If the problem you are experiencing is not listed below, set this unit to off, disconnect the power, and contact the nearest authorized Yamaha dealer or service center.
General
  | Problem | Cause | Remedy | 
  | No sound. | The connection between this unit and the  | Connect securely.  | 
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  | portable audio player or computer is not  | 
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  | collect or securely.  | 
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  | The volume is set to the minimum.  | Increase the volume.  | 
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When using the USB bus power | 
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Problem  | Cause  | Remedy  | 
The volume level cannot be  | The setting of audio device on your  | Set the audio device to  | 
increased even if this unit’s  | computer is wrong.  | Windows: “USB Audio DAC”  | 
VOLUME dial is rotated in the  | 
  | Macintosh: “USB DAC”.  | 
direction of the + symbol.  | 
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No sound from this unit.  | Failure to install the USB driver.  | Install the USB driver again.  | 
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The volume level cannot be  | The volume of your computer or the media  | Increase the volume.  | 
increased. | player is not set to maximum. | 
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Note
The limiter is activated temporarily to decrease the volume output when there is a continuous excessive output. While the limiter is activated, the status indicator turns on and off repeatedly. Turn down the volume until the indicator flashing stops.
English  | 
SPECIFICATIONS
Speaker section | 
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Type  | Yamaha   | |
Driver  | 38 mm   | |
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  | Magnetic shielding type  | 
Impedance  | 6 Ω  | |
Amplifier section | 
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Input  | 
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Analog (PORTABLE)  | ................ 3.5 mm Stereo mini jack  | |
Digital (USB)  | USB terminal  | |
Dynamic power  | 6 W x 2 (1 kHz, 6 Ω)  | |
Max. Instantaneous Power*  | ||
........................................  | 10 W x 2 (1 kHz, 6 Ω, 10% ΤΗD)  | |
Input sensitivity/Impedance  | ||
PORTABLE input  | 300 mV/10 kΩ  | |
Maximum input signal | 
  | |
PORTABLE input  | 2.0 V  | |
Frequency response  | 90 Hz to 20 kHz  | |
*Refers to the power that can be output for 100 ms continuously.
USB section
Computer
... Computer equipped with a USB port on which a Windows or Macintosh operating system is installed.
OS
.............................................. Windows XP, 2000, Me, 98SE
........................ Mac OS 9.1 or later, Mac OS X 10.0 or later
General | 
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Power Supply | 
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USB bus power  | 5 V/500 mA  | 
USB/AC adaptor  | 5 V/500 mA  | 
Battery  | AAA, R03,   | 
  | Battery life: 3 hours as alkaline  | 
  | (Output: 10 mW + 10 mW)  | 
Power Consumption (When the USB/AC adaptor is used)
.........................................................................  | Less than 5 W  | 
Dimensions (W x H x D)  | 248 x 100 x 33 mm  | 
  | |
Weight  | 500 g  | 
  | (1 lbs. 2 oz.)  | 
Please note that all specifications are subject to change without notice.
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