BLOCK DIAGRAM
M
CL
K
L+
L
L-
MCLK
MCLK
UCOM SPI
I2S-0
I2
S-
0
MCK
R_CH
L_CH
MUTE
LPF
R
R+
R-
L_CH
H/P PCB
POWER
LED
I2
S-
1
(P
CM
O
UT
>
24
bi
t/
192
kH
z
&
D
SD
O
UT
)
I2
S-
0
(P
CM
O
UT
<=
2
4b
it/
192
kH
z
)
USB_Tx_Rx
USB_VBUS_ON/OFF
Wi-Fi BT ANT
TX+/-
RX+/-
SPDIF OUT1
UCOM DATA_CLOCK
PCM/DSD DATA/BCK/LRCK
ANALOG OUT
FRONT USB PCB
GN
D
D
AT
A-
VB
US
D
AT
A+
MXS4035-A
FRONT PCB
I2S-1 (PCM OUT > 24bit/192kHz & DSD OUT )
I2S-0 (PCM OUT <= 24bit/192kHz )
PLAY
LEFT
RIGHT
DOWN
UP
KEY PART
UCOM UART
BACK
SOURCE
POWER
OLED_KEY_LED_IR CONTROL
SYSTEM UCOM
VARIABLE OUT
L_CH
MUTE
E.VOL IC
NJU72343
PCM/DSD MCK/DATA/BCK/LRCK
R_CH
H/P OUT
R_CH
MUTE
LPF
I / V AMP
RJ-45
OLED DISPLAY
IR
RECEIVE
R5F5631FDDFB
H/P AMP
ROTARY VOL
(MASTER)
EP4CE15F17C8N (FPGA)
AL32 PROCESSING
I / V AMP
AUDIO DAC (PCM1795)
LEGO
MODULE
5M570ZF256C5N (PLD)
DNP-800NE AUDIO DIAGRAM
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
20