NAD T 752 - BLOCK DIAGRAM

9
OS
D
L
C747
63
Pin
4
14
B
E
A
C
S
peaker
O
ut
p
ut
O
ut
p
ut
Sp
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Pin ( ST/MO, Mute, S Meter )
C
E/Data/Clk
,
RDSbus
V
FD Driver
CPUs
S
tere
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m
od
e
AC3
m
od
e
M
ulti Ch in
by
CPU
co
ntr
o
l
4966
VFD (Vacuum Florescent Display)
by
CPU
4966
c
ontrol
L
INE-OUT
L
INE-
OU
T
C
D
V
1
V
2
V3
V3
V4
V4
V5
TC9
27
3
N
D/
A
CS
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93
2
6
DS
P
E
PR
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FL
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onfi
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S
ele
c
t
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FR
L
R
S
L
S
R
BS
L
BS
R
FL
FR
AU
DI
O
S
ELECT
O
R
VO
L
U
ME
M6
244
6
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LE
C
T
MU
TE
MU
TE
MU
TE
MU
TE
MU
LTI-CH
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T
FL
FR
C
PO
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AMP
AMP
PO
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S
L
S
R
DIR
CS
-
8
41
5
CO
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CO
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CO
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3
7
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1
57
L
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-
9
1
6
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1
2
3
4
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2
5
FL
FR
R
ela
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R
ela
y
R
ela
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S
L
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C
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n
cod
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Vo
l
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me
S
ensor
R
em
o
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e
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M
atrix
Bo
ar
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Tu
ner
LED
S
uppl
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Po
wer
R
ela
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A
C In
p
ut
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ain
S
tand-b
y
Po
wer
S
uppl
y
+5
V CP
U
A
C In
p
ut
C
P
U
L
A
183
7 +
LC
721
3
1 +
BU19
24
FL
FR
CS
422
8
B
a
ss
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ire
c
t
C
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CS
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ET
A
B
OO
T
DATA IN
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ATA
OU
T
C
L
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K
OU
T
A
1
6
A
1
7
C
L
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D
ATA
OU
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M
27
C0
2
0
C
B
C
BL
F0
F1
F
2
E
1
E2
A
T24
C0
2
E
EPR
O
-00
4
TAPE
IN
TAPE
OU
T
96/
24
O
PTI
C
AL
V6
SR
SU
B
C
BS
R
BS
L
96/
24
CS
4
3
4
0
D/
A
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I
n
/Ou
t
L
C4
966
7
4H
C
2
5
1
O
PTI
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CO
AXIAL
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C
P
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O
N
LED
P
r
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te
c
t
LED
Po
wer-D
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ete
c
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C
P
U
H
ead
ph
one
co
ntr
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l t
o
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P
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fo
r
c
e 2
c
hannel
M6
244
6
VO
L
U
ME
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LE
C
T
C
P
U
BS
L
BS
R
BS
R
BS
L
L
C4
966
C
onfi
g
2
EXTERNAL
I/
P
7.1 EXT
AU
DI
O
I/
P
C
P
U
BLOCK DIAGRAM
U201 A/VR (A/V Receiver)
U202 VFD