70-70
of the task table.
7)
Which
IP
waterproof
level
does
MDHB
device
support?
Currently,
some models
support
waterproof
IP
54.
8)
How
to
install
the
WIFI
antenna?
The
antenna
must
be
installed
on
unobstructed
place
of
the
roof,
and
be
fixed
with
glue.
9)
The
device
cannot
be
shut
down
when
in
ignition
ON/OFF
mode.
Check
if
the
ACC
signal
wiring
is
correct
and
if
there
is
voltage
for
ACC
signal
line
after
the
key
is
turned
off
.
If
you
have
set
timing
recording,
and
at
the
current
time
it
is
still
in
task
recording,
the
device
may
be
impossible
to
be
shut
down.
10)
GPS
anomaly.
Check
if
the
GPS
antenna
is
properly
installed.
There
is
silkscreen
GPS
identification
on
the
GPS
antenna
pedestal
on
the
back
of
the
MDVR
device.
Check
if
the
antenna
connector
is
blocked
and
make
sure
the
antenna
connector
not
be
covered
by
other
things.
Trees
block,
being
inside
the
tunnel,
driving
near
tall
buildings
or
viaduct,
thunderstorms
and
other
environmental
effects
may
also
cause
to
receive
no
GPS
signal
or
error
signal.
11)
No
voice
in
video
files.
See
if
there
is
an
external
microphone,
or
if
the
camera
cannot
capture
audio;
Enter
into
the
video
channel
settings,
then
check
if
the
audio
is
open;
Ensure
video
input
and
normal
recording,
on
which
the
audio
recording
channels
must
be
based.
12)
The
device
doesn’t
record.
Make
sure
the
storage
part
is
installed
and
of
fine
contact,
the
data
can
be
read
on
PC,
and
the
storage
device
is
not
formatted.
Check
if
there
are
video
signal
input
to
the
main
device,
and
whether
there
are
video
images
in
the
channel
pictures.
13)
Why
has
the
MDVR
device
always
been
in
a
state
of
restart?
Check
whether
the
MDVR
device
voltage
is
insufficient.
If
the
device
voltage
does
not
reach
the
start
voltage,
the
device
will
restart.
Hard
disk
or
SD
card
may
cause
the
MDVR
device
unable
to
start.
You
need
to
remove
the
storage
device
and
then
boot
up
to
verify
whether
it
is
caused
by
the
storage
device.
14)
Why
the
MDVR
device
cannot
start?
Check
the
device
input
power
to
see
if
the
power
wiring
is
correct,
if
there
is
ground
wire
connected
back
to
the
battery,
and
if
the
fuse
of
the
power
wire
is
n
good
condition;
Check
whether
there
is
voltage(more
than
7V)
on
power
input
ACC
signal
wire;
Check
whether
the
hard
disk
key
is
turned
off.
15)
What
is
the
log
in
user
name
and
password
for
new
device?
The
default
user
name
and
password
are
both
“admin”.
The
device
password
can
be
set
as
empty.
16)
How
to
update
the
firmware?
Change
the
previous
file
folder
name
“dvrupgrade”
to
“upgrade”.
Change
the
file
name
FWX15-0401-05-01-V01V01V01V491087
to
RMMDVR_X5_III_T2014111005_convert
17)
In
the
ON/OFF
of
basic
settings,
the
low
voltage
protection
is
8V,
why?
After
testing,
when
the
battery
is
lower
than
8V,
the
voltage
will
lower
down
quickly.
Therefore
the
lowest
voltage
is
set
to
be
8V.
When
it
is
lower
than
8V,
the
MDVR
device
will
recognize
it
as
external
power-off
and
then
enter
into
shutdown
state.
Summary of Contents for MDHB3204
Page 8: ...8 70 1 3 SYSTEM DIAGRAM 1 4 EXTERNAL INTERFACE DIMENSION Unit mm FRONT PANEL...
Page 21: ...21 70 System Environment System Storage...
Page 43: ...43 70 Trigger snap It snaps when alarm is trigger 2 7 3 ECO DRIVING It is still developing...
Page 44: ...44 70 2 8 ALARM 2 8 1 BASE Base Speed alarm...
Page 60: ...60 70 3 2 MAIN INTERFACE...
Page 62: ...62 70 If the date is marked as color green it means there is recording...
