Owner's Manual

Troubleshooting
74
Problem
Solution
Power
cannot
be
turned
on
Check
the
charge
of
the
battery.
Connect
the
AC
adapter
to
charge.
LCD
screen
is
too
dark
Check
the
brightness
setting
of
the
LCD
screen.
No
sound
or
poor
sound
quality
Check
that
if
connectors
of
the
remote
controller
and
earphones
are
clean.
Check
that
the
music
files
on
this
device
are
in
the
correct
format
and
are
not
corrupt.
Buttons
will
not
function
Check
whether
the
Hold
function
is
activated.
Remove
and
then
put
the
battery
if
the
product
stops
and
does
not
operate.
Text
in
the
LCD
distorted
Check
the
correct
language
setting.
Heavy
noise
in
radio
reception.
See
if
earphones
are
connected.
The
earphones
as
an
antenna
for
the
radio
reception.
If
the
earphones
are
connected,
try
moving
direction
of
the
product
and
earphones.
Files
are
not
downloaded.
See
if
the
USB
cable
is
correctly
connected.
See
if
the
AC
adapter
is
correctly
connected.
If
there
is
not
enough
battery
charge,
the
download
may
not
function
properly.
What's
DRM?
DRM
is
technology
and
service
to
protect
interests
and
rights
of
the
parties
related
with
copyright
by
preventing
unauthorized
use
of
digital
contents.
This
product
uses
the
Marktek's
DRM.