Kenwood K-511USB-B - Manual (Page 56)

110 K-511USB/RD-K511USB 111 English
USB Block
Symptom Remedy See page
Sound is not output even when
a USB flash memory or USB mass
storage class-compatible audio
player is connected.
Insert the USB flash memory properly.
Connect the USB cable properly.
Check if the USB mass storage class-compatible digital audio
player is turned ON.
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Error message "NOT FOUND" is
displayed even when the drive is
switched.
Insert an SD card containing music files.
Insert an SD card in the drive.
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A folder cannot be erased.
The USB flash memory or USB mass storage class-compatible
digital audio player may contain files other than audio files.
Check the content on your PC.
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Component connected to iPod/D.AUDIO connector
Symptom Remedy See page
Kenwood digital audio player cannot
be controlled from the main unit or
remote control unit.
Connect using the PNC-150 connection cable (separately
available).
Check if a compatible model is connected.
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105
Resetting the system
Symptom Check Points & Remedy
The system malfunctions (resulting
in inoperability of the system,
erroneous display, etc.).
The system may malfunction due to unplugged and plugging of a cable while
the system is ON or to an extraneous cause. In this case, reset the system with the
following steps. Resetting the microcomputer results in erasing the setups of the
system and returns it to the factory-shipped condition.
1 Unplug the power cord from the power outlet.
2 While pressing holding [K] on the main unit, unplug the power cord and plug it
again.
("INITIALIZE" is displayed to indicate that the system is reset.)
Troubleshooting
Glossary
Term Description
AAC
AAC stands for "Advanced Audio Coding" It is the audio compression method use with
the video compression of digital broadcasting, etc.
CD-DA Stands for "Compact Disc – Digital Audio". The CD-DA is usually called "CD".
CD-TEXT
Music CD in which the character information such as the disc titles, artist names, track
titles, etc. is recorded.
MP3
An audio compression method developed by Faunhofer IIS, Germany. It achieves a high
compression rate by thinning out the data of the sound that is less audible to human
ears. It can compress music CD data into about 1/11 (128 kbps) while maintaining similar
audio quality.
SD memory card
Class2
Class4
Class6
Standard on the data read/write speeds of the SD and SDHC memory cards. Three steps
of Classes 2, 4 and 6 are standardized and their data transfer rates for read/write are
guaranteed respectively at 2 MB/s or more, 4 MB/s or more and 6 MB/s or more. When
writing continual data such as music data, it is required that the card is compatible with a
speed higher than a certain data transfer rate. With this system, it is recommended to use
SD cards of Class 4 or higher.
Supreme
This is Kenwood-original band interpolation technology for reproducing audio files
in an SD card or USB device with sound properties that are extremely close to the
original properties. It employs a unique algorithm to estimate and interpolate the high
frequencies lost due to compression for natural, realistic reproduction of music.
USB
Standard for interfacing between the PC and peripheral devices. This system is
compatible with USB 1.1 and 2.0.
USB hub Adapter for connecting more than one USB device simultaneously.
USB mass storage class
Standard for controlling a USB device from a PC. Also, refers to the action that a PC
recognizes a USB device connected to it as an external storage device.
VBR (Variable Bit Rate)
Technology for assigning the bits by varying their quantity according to the amount of
music information.
WAV This is the Windows standard noncom pressed audio format.
WMA
Stands for "Windows Media™ Audio". This is an audio compressed encoding system
developed by Microsoft Corporation.
Sampling frequency
Number of times analog signal is converted into digital signal per second. It is 44.1 kHz
with music CD. In general, higher sampling frequencies offer higher audio quality.
Tag data
Information written in audio file, including the title name, artist name, album name and
genre.
Bit rate
Figure expressing the amount of information per second. A higher bit rates offer higher
audio quality.
Ripping Action of reading digital data from a CD, etc. into a PC.
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