Sony MHC-V90DW Operating Instructions Manual page 74

Audio files or folders on the USB
device cannot be erased.
Check if the USB device is write-
• •
protected.
The USB device was disconnected
• •
or the power was turned off
during the erase operation. Delete
the partially-erased file. If this
does not fix the problem, the USB
device may be broken. Refer to the
operating instructions of the USB
device on how to deal with this
problem.
There is no sound.
The USB device is not connected
• •
correctly. Turn off the system and
reconnect the USB device, then
turn on the system and check if
"USB" appears on the display.
There is noise, skipping, or
distorted sound.
You are using an unsupported USB
• •
device. Check the information on
the website about compatible USB
devices (page 12).
Turn off the system and reconnect
• •
the USB device, then turn on the
system.
The music data itself contains
• •
noise, or the sound is distorted.
Noise may have entered during
the transfer process. Delete the
file, and try transfer again.
The bit rate used in encoding an
• •
audio file was low. Send an audio
file with higher bit rate to the USB
device.
"READING" is displayed for an
extended time, or it takes a long
time before playback starts.
The reading process can take a
• •
long time in the following cases.
•
— There are many folders or files
on the USB device (page 12).
74
GB
•
— The file structure is extremely
complex.
•
— The memory capacity is
excessive.
•
— The internal memory is
fragmented.
"NO FILE" appears on the display.
The system has entered the
• •
software update mode, and all
keys (except ) are deactivated.
Press  on the unit to cancel the
software update.
"OVER CURRENT" appears on the
display.
A problem has been detected
• •
with the level of electrical current
from the (USB) port. Unplug
the AC power cord (mains lead)
and remove the USB device from
the port. Make sure there is no
problem with the USB device.
If this display pattern persists,
contact your nearest Sony dealer.
Erroneous display.
The data stored in the USB
• •
device may have been corrupted,
perform the transfer again.
The character codes that can be
• •
displayed by this system are as
follows:
•
— Upper cases (A to Z)
•
— Numbers (0 to 9)
•
— Symbols (< > * +, [ ] \ _)
Other characters appear as "_".
The USB device is not recognized.
Turn off the system and reconnect
• •
the USB device, then turn on the
system.
Check the information on the
• •
website about compatible USB
devices (page 12).