NAD C 446, Service Manual

Page: 9 / 33

Standby PSU (25W)
+/-12VA 0.3A
5VS 1A (standby mode <0.2W dissipation )
POWER SWITCH
Signal
Power
control
Main MCU
Renesas M30281
VFD
BOE CIG128X32
KUANGXIN FM/AM/RDS MODULE
kst-mb114ma1-23
D
1
G
2
V
3
GP1UV701QS
Key and IR front panel
Frontier Venice 6.2
DAB/INTERNET RADIO
ETHERNET DRIVER
KSZ8851SNL
5V6D 1.5A
FM ANTENNA
AM ANTENNA
DAB ANTENNA
ETHERNET
DUAL 4VAC 0.5A
+60VD 0.1A
ENCODER
DAC
CS4392-KZZ
LPF
NE5532
LPF
NE5532
IIS
FM/AM LO
FM/AM RO
S
P
I
SPI
RDS DATA
RS232
S
P
I
4VAC 60VD 5V6D
+/-12VA
+12V
A
AMS1117
5V
A
AMS1117
5VS 5V6D
3V3
D
3V3
S
+12VA
5V6D
3V3D
3V3D
LO
RO
TRIG IN
IR IN
RS232
LOGIC
Buffer
IR TRIG RS232
IPOD control
RS232
+/
-12VA
+/
-12VA
GND
GND
ADC
PCM1808
74LCX244
IIS
IIS
USB
Transmitter
DIT4096
OPTICAL
Multiplexer
NC7SZ157
SPDIF
SPDIF
SPDIF
4VAC 60VD 5V6D
5VA
WIFI ANTENNA
BLOCK DIAGRAM
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