NAD M55 - Block Diagrams; Overall Block Diagram

RF AMP CXD1881
DVD SERVO CXD1885
DSD DECODER CXD2753
ESS 6168
IC 25 FAN8042
Motor Driver
IC18
IC21
IC25
IC16
Pick Up
M
M
M
DSIC
POWER BOARD
AC 100V-240V
50Hz/60Hz
VF+ VF- -22VA -15V +15V 9V 3.3VD 5VS
IC20
4Mbit EDO
X4
33.8688MHz
IC17
CPLD
CVBS
R/Pr G/Y
B/Pb
Y C
Y3 27MHz
U13
U14
EEPROM
SCL, SDA
SDRAM
64M
DQM0,DQM1
DQ[0:15]
DCLK,WE,CAS,RAS
CS,DCKE,MA[0:11]
U6
FLASH MEMORY
(16M)
A[0:19]
PWR,PCE,PRD
AD[0:7]
YUV[0:7]
U530 S2300
U536
CS4955
U516
AMP AD8092
SC
SY
SD-B SD-G SD-R
Y[0:9]
C[0:4]
U527
ADV7300A
(ADV7310A)
HD-G HD-B
HD-R
U542
FMS6418A
U518
SIL9030
C[0:9] Y[0:9]
TSD0 TSD1 TSD2 TSD3
HDMI
JACK
TX0 TX1 TX2 TXC
HPD DDC DA DDC CL CEC-H
P504
YUV[0:7]
Y C
U22
AUDIO DAC
5.1CH & 2CH
AMP OPA2134UA
U23A-U26B
PDAT[1:4]
U2
DDX8001
TBCK
TWSS
SDA
SCL MCLK-DDX
BASS MANAGEMENT
ML MR
FL FR
SL SR
CENTER SUB
ML MR
FL FR
SL SR
CENTER SUB
P/I SELECTER
SPINDLE[+,-]
SLED[+,-]
LOAD[+,-]
IC15
M12L1616A-7T
DCKE
DCLK
A[0:11] DSD
T+,T- F+,F-
ABCDEF
LMT SW
OPN SW
CLS SW
LD M1
LD M2
RA[0:9]
RD[0:15]
VDT[0:7]
XSAK
SDEF
XSHD
PLCK
SDCK
DSAR
DSAL
DSALS
DSDASW
DSAC
DSARS
U10
DD[0:7]
RFAC
AMPSEN
AMPSDT
AMPSCK
DFCT
MIRR
RFAC
TEO
FEO
PI
U20
SC16C550IB18
RS232
Y3 1.8432MHz
AUX5
LA2
LA1 LA0
U21
MAX3243
HTXD
HRXD HDTR
HRTS
RS232
JACK
P1
RTS
RI
CTS
RXD TXD
DTR DSR DCD
PT6311
U801
KEY INPUT
VFD DATA
VFD CLK
VFD CS
FLD DISPLAY
POWER CONTROL
U3
74HC86
IR PHONE
U802
HS0038B
U30
PC817
IR IN
IR IN
IR RECEIVER
SCART JACK
P860
LCH RCH MUTE
CVBS Composite/RGB input selector
R/Cr G/Y B/Cb
COAXIAL
SPDIF
SW503
J501A
OFFON
TRIG O/F
+12V O/F
Block Diagram
1.OVERALL Block Diagram
VGA
JACK
P507
VGA R
VGA G
VGA B
VGA HSYN
VGA VSYN
FROM 2300
TSD[0:3]
FROM U542
3-23