NAD T 762 - Block Diagram

9
OS
D
L
C747
63
Pin
1
4
A
C
O
ut
Speaker Output Output Speaker
Pin ( ST/MO, Mute, S Meter )
CE/Data/Clk, RDSbus
V
FD Driver
CPU
Stereo mode
AC3 mode
Multi Ch in
by
CP
U
co
ntr
o
l
4966
VFD
by
CP
U
4966
co
ntr
o
l
Speaker Output
AUDIO MS
4966
co
ntr
o
l
by
CP
U
co
ntr
o
l
by
CP
U
4966
MS
V
IDE
O
OU
T
C
D
V
1
V2
V
3
V3
V4
V4
V5
TC9
27
3
N
D/
A
CS
-4
93
2
6
DS
P
EPROM
FL
C
onfi
g
S
ele
c
t
o
r
FR
L
R
SL SR BSL BSR FL FR
SELECTOR
VOLUME
M62446
ELECT
TREBLE
BASS
MUTE MUTE MUTE MUTE
MULTI-CH
OUT
FL FR C
POWER
AMP AMP
POWER
SL SR
CS533
1
DIR
CS
-
8
41
5
CO
AXIAL 1
CO
AXIAL 2
CO
AXIAL
3
A
/
D
7
4L
S
1
5
7
L
R
PROTECT
C
P
U
S
tand-b
y
CPU CPU
OU
T
C
P
U
C
P
U
C
P
U
TC-9164AN
CPU
SL
FRONT
1 2 3 4
BSL BSR
FR FL
MULTI-CH
IN
CPU CPU CPU CPU
TU
NER
OU
T
D
i
g
ital/
A
nalo
g
s
ele
c
t
o
r
S
C
S
R
S
L
V
i
d
e
o
S
ele
c
t
o
r
B
A-7
6
2
5
FL FR
Relay Relay Relay
SL
SR
C
Encoder
Volume
Sensor
Remote
K
e
y
M
atrix
Board
Tuner
LED
Supply
Power
Relay
AC Input
Main
S
tand-b
y
Po
wer
S
uppl
y
+5
V CP
U
A
C In
p
ut
C
P
U
LA1837 + LC72131 +
BU1924
L
R
FL
FR
CS
4
3
4
0
D/
A
D/
A
B
a
ss
R
e-
d
ire
c
t
C
P
U
CS
R
E
S
ET
A
B
OO
T
D
ATA
OU
T
C
L
O
CK
OU
T
A
1
6
A17
C
L
O
CK
OU
T
D
ATA
OU
T
M27C020
C
B
F0
F1
F
2
E0
E2
AT24C02
EEPRO
-
00
4
T
APE
IN
CS
4
3
4
0
TAPE
OU
T
96/
24
96/
24
96/
24
O
PTICAL
V6
SR
BSL
BSR
ELECT
M62446
VOLUME
MUTE
CPU
SUB
3
CPU
2
C
MUTE
Relay
CPU
POWER
AMP
BSL
BSR
BSL
96/24
CS4340
D/A
IR
I
n
/O
ut
CPU
LC
4
966
7
4H
C
1
53
O
PTICAL
OU
T
CO
AXIAL
OU
T
C
P
U
O
N
LED
P
r
o
te
c
t
LED
LC4966
P
ower-Down
D
ete
c
t
MUTE
CPU
BSR
BSL
BSL
Head phone
control to CPU force 2 channel
L-CH
MS LINE-AMP MS LINE-AMP
R-CH
MSL
MSR
V3
V4
V6
C
D
V5
TU
NER
C
P
U
OU
T
IN
TAPE
TAPE
V3
V4
OU
T
V1
V
2
OU
T
T
C
9
27
3
N
-
00
4
MS
L
M
S
R
S
elector
L
C4
966
B
A-7
6
2
5
V
i
d
e
o
L-CH R-CH
BLOCK DIAGRAM
U202 VFD U201 A/V-R