8
5. OPERATION ILLUSTRATION
1. Operation button description
MENU
V+
MODE
V
1
2
3
4
5
6
7
The button area is shown on the right. The "MENU" knob can be rotated clockwise or counterclockwise
to move the interface cursor and select the specified function. Short press the "MENU" knob to confirm
the operation. The "MODE" button is dedicated to switching multimedia functions: Music Center, FM
radio, Recording, Bluetooth.
1
.
Play/Pause
button 2. Next song button
3. "MENU" knob button 4. "MODE" mode button
5. button 6. Volume-button
7. Last song button
Special
function
operation
instructions
:
①
Update
resource
library
and
firmware
with
TF
card
inside
the
device
Put
the
resource
library
and
firmware
files
into
the
root
directory
of
the
TF
card
and
insert
it
into
the
built-in
TF
card
socket
,
when
the
device
is
off
,
press
and
hold
the
"MENU"
knob
to
turn
it
on
,
after
seeing
the
screen
light
up
and
displaying
information
,
release
the
button
to
automatically
update
the
firmware
and
resource
library
.
②
Update
the
system
Bootloader
Put
the
system
Bootloader
file
into
the
root
directory
of
the
TF
card
and
insert
it
into
the
built-in
TF
card
socket
,
when
the
device
is
off
,
press
and
hold
the
"Play/Pause"
button
to
turn
it
on
,
after
seeing
the
screen
light
up
and
displaying
information
,
release
the
button
to
automatically
update
the
firmware
and
resource
Library
.
2. Volume
Control
The
master
volume
control
is
shown
below, CH 1 and CH2
share
the
same
constant
pressure/
constant
impedance
indicator
light, CH3
and
CH4
share
the
same
constant
voltage/constant
impedance
indicator
light
.
CH1
MIN
MAX
PROT
CLIP
SIG
4-16
Ω
100V
4-16
Ω
CH2
CH3
CH4
100V
PROT
CLIP
SIG
MIN
MAX
MIN
MAX
MIN
MAX
-10
+10
dB
-10
+10
dB
-10
+10
dB
-10
+10
dB
-10
+10
dB
-10
+10
dB
-10
+10
dB
-10
+10
dB
The
treble
and
bass
control
are
shown
below
.
The
maximum
adjustable
of
BASSS
or
TREBLE
is
±
10dB
.
3. Treble
and
bass
control
The enlarged view of the DIP switch is shown on the right,
it can be used to configure specific functions. Specific
functions include configuration of constant voltage/constant
impedance mode, local/remote volume control, INPUTx
priority control, and INPUTx Phantom function disable/enable.
4
.
Dial
Function
Description
IN
P
U
T
1 P
ri
o
rt
y
IN
P
U
T
2 P
ri
o
rt
y
IN
P
U
T
3 P
ri
o
rt
y
IN
P
U
T
4 P
ri
o
rt
y
1 2 3 4 5 6
C
H
1
/C
H
2
:4
-1
6
Ω
C
H
3
/C
H
4
:4
-1
6
Ω
IN
P
U
T
1 P
h
a
n
to
m
IN
P
U
T
2 P
h
a
n
to
m
IN
P
U
T
3 P
h
a
n
to
m
IN
P
U
T
4 P
h
a
n
to
m
C
H
1
-R
E
M
O
T
E
C
H
2
-R
E
M
O
T
E
C
H
3
-R
E
M
O
T
E
C
H
4
-R
E
M
O
T
E
1 2 3
O
F
F
O
N
5 6 7 8
4
DIP
ON
ON
DIP
