NAD C 390DD User manual

NAD
SERVICE MANUAL
C 390DD
C 390DD
Direct Digital Powered DAC/Amplifier
Direct Digital Powered DAC/Amplifier
DRAFT DATE: MAY 2008


                 
                   
                  

C 390DD Direct Digital Powered

Features
> Revolutionary Direct Digital Technology
       

 
 

 

  
  
> Immense Power
 


       
     
         

> New System Architecture
         

  
         
          
        

> Modular Design Construction (MDC)
  
       
        
        
 
    
        
        

> Exclusive Room EQ



 
           

> Advanced Integration
         
 
          
        
       
        
 


  
  
 
www.NADelectronics.com
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 
 C 390DD
 

 
  
  

  



  
  




 
  
 
  

 
 <
 

 
 


DD AP-1
Optional
MDC Module
V
DD HDMI-1
Optional
MDC Module
V
NA D
SOURCE
Direct Digital Integrated Amplifier C 390DD
VOLUME
V
V
V
V
V
V
C 390DD
  
 
 
  

SPECIAL FUNCTION
Function Keys Notes
Factory Reset Source Down +Source UP
Check MCU Version Enter(press 3second)
Check DSP Version Enter (press 3second)
VFD Test Source Down + Right
Enter into Bootloader Standby+Switch on
Check USB Card Version Enter(press 3second)
Change Input source name Source Down(press 3second)

DETAILS & WAVEFORMS ON SYSTEM TEST & DEBUGGING
Main Board Y1000 8MHz
USB Board
XC7000 11.2896MHz

LRCK 96K
BCK
LRCK 192KHz

BCK 12.288MHz
AMP Board X1 108MHz
Q301˄G˅844kHz

Type A
Type B
USB Card
HDMI IN 1
HDMI Card
PHONO Input
Analog Card
HDMI IN 2
HDMI IN 3
HDMI OUT
Signalended Input
Balance Input
Main Board
FPP Board
Power supply Board A
Amplifier Board
Interface Board SPDIF Board
COAX 1 COAX 2
OPTO1 AES/EBU
OPTO2
OPTO OUT
COAX OUT
DAC OUT
TRIG IN
IR IN
RS232
TRIG OUT
CIG128X3201 BOE
USB Type A
VFD Screen
D
1
G
2
V
3
IR
Encode
Power supply Board B
46 Pin connector
46 Pin connector
46 Pin connector
15 Pin connector 28 Pin connector
15 Pin connector 28 Pin connector
24 Pin connector 24 Pin connector
34 Pin connector
34 Pin connector
12 Pin connector
12 Pin connector
6 Pin connector 6 Pin connector
4 Pin connector4 Pin connector
Key
Amplifier Output
3
-
&21 &21 &21
-
5 Pin connector
- -
3
-
-
3
-
-
4Pin connector
4Pin connector
-
-
-
ķĸ
Ĺ
ĺ
Ļ
ļ
Ľ
ľĿ
wiring diagram

  3,1 PP VSDFLQJ / PP ;
  3,1PPVSDFLQJ/ PP ;
  3,1PP VSDFLQJ / PP &17&
  3,18/$:*&8/$:*UHG-&%<-&</ PP
  3,18/$:*7-&%</ PP
0DLQ %RDUG -,QWHUIDFH %RDUG -
0DLQ %RDUG 36SGLI %RDUG3
0DLQ %RDUG-
0DLQ %RDUG-
0DLQ %RDUG -,QWHUIDFH %RDUG -
  3,18/$:*UHGEODFN7-&%</ PP $PSOLILHU%RDUG -3RZHU 6XSSO\ %RDUG%-
  3,18/$:*5HG%ODFN%OXH9+<6'1</ PP $PSOLILHU %RDUG -3RZHU 6XSSO\ %RDUG$ -
  3,18/$:*7-&%< 6$1</ PP $PSOLILHU%RDUG --,QWHUIDFH %RDUG-
  3,1PP VSDFLQJ / PP &17&PP $PSOLILHU%RDUG 3,0DLQ %RDUG-
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5HPDUN
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DIGITAL
SELECTOR
INPUT
DIGITAL
INTERFACE
TRANSMITTER
DIGITAL
INTERFACE
RECEIVER
BYPASS
DIT SOURCE SELECTOR
PORT A
IIS INPUT
IIS OUTPUT
PORT A
IIS INPUT
IIS OUTPUT
DIX 4192
DIT/DIR
ADV7623
HDMI Transceiver
HDMI IN 1
HDMI IN 2
HDMI IN 3
HDMI OUT
OPTO
COAX
COAX 1
COAX 2
OPTO1
AES/EBU
SPDIF INPUTSPDIF OUTPUT
MCU
CIG128X3201 BOE
SPI
IIS switcher
IIS 0,1
PRE Buffer
Gain
0,3,6,9dB
NE5532 ADC PCM4202
Optional Analog card
INPUT FORMAT
VOLUME
TREBLE,BASS,EQ
SAMPLE RATE
CONVERTER
ZTA FILTER
4th ORDER
NOISE SHAPER
PWM
OUTPUT
PWM
OUTPUT
REF
MCLK 108M
FS 2450
FS
SAMPLER
(ADC)
NOISE
SHAPER
3rd
ZETEX FPGA
DDFA
PWM REF OUTPUT CH0 CH1
PWM OUTPUT CH0 CH1
VCC
VEE
VEE
VCC
OUTPUT
STAGE L
OUTPUT
STAGE R
LF
LF
LOGIC DRIVERLOGIC DRIVER
L CH OP
FEED BACK
NETWORK
FEED BACK
NETWORK
TRIANGLE
COMPARATOR
TRIANGLE
COMPARATOR
INTEGRATOR
INTEGRATOR
CONTROL
INTERFACE
GND
GND
R CH OP
IIS line
IIS3
ZETEX DDFA
Feedback Processor
D
1
G
2
V
3
GP1UV701QS
Key and IR front panel
TRIG IN
TRIG OUT
IR IN
LOGIC BUFFER
Control interface
SPI/IIC
SPI
GPIO SPI GPIO/INT
GPIO/INT
Regulator For preamp
ABLETEC APL400 PSU MODULE or HANSONG DESIGN +/-70V
DC/DC
5V
+/-10V
3V3D
3V3D
3V3D
3V3D
AMS1117-1.8
1V8D
3V3D
DC/DC
Standby PSU(PI TOP267EG)
12.5V 4A power on mode (switched)
5V standby mode( <0.2W dissipation )
+/-70V 1.38A continuous 4.13A peak
5VS
5VS
5VS
POWER SWITCH
LN
6.3AT/250V
GPIO
MAIN L MAIN N
12.5VD
12.5VD
12.5VD
DC/DC AND LDO
+/-12V 3V3D 5VA
12VD on/off and standby
+/-70V on/off
SPI bus
Signal
Power
control
IIC bus
PRE Buffer
NE5532 Pre out
RS232
PIC24FJ256
Optional HDMI module
DC/DC
Main MCU
VS1053
Mandatory USB card
PIC32MX460F256L
Type A
Type B
USB audio decoder
EEPROM
46 pin board-board socket 46 pin board-board socket
SLOT3
SLOT2
OPTION CARDS
LDO
+/-5V
R3V3
DC/DC
MOS-SWITCH
IIS1
IIS2
IIS0
IIS1
IIS2
INT1
INT2
SPI
SPI
IIC
IIC
IR 0-2
SPI bus IIC bus IR 0-7
USB SWITCH
USB
Type A
Front panel usb
NAD C390DD BLOCK DIAGRAM
VERSION: V1.08
Drafted by: Percy
Data: 2010-5-4
TAS1020
USB audio Device
SN74CB3Q3253
FPusb
FPusb
TS3USB221
TS3USB221
DC/DC
4VF
12.5VD
GPIO 0-7
GPIO8-12
GPIO 4-7
PWM REF OUTPUT CH2- CH7
MOS-SWITCH
FPusb
AMS1117-3.3
3V3S
12.5VD
12.5VD
AT32UC3A0512
USB HOST
OPTO2
GPIO
Plug in senser
35VF
for upgrade
LDO 5V
5VD
LDO
3V3 1V8
5V
Impedance
Detect L
Impedance
Detect R
Impedance detect L&R
46 pin board-board socket
MOS-SWITCH
IIS0
INT0
IIC
GPIO 0-3
FPusb
SN74CB3Q3253
SPI
12V EN
12V EN
12V EN
PHONE AMP
MC/MM
PHONE AMP BYPASS
SLOT1
SELECTOR
TBD
PIC18F26K20(MCU)
IIS3
PEN 0-2
Block Diagram