NAD T744 - IC Block Diagrams

43
1
2
3
4
5
6
7
8
9
10
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
20
19
18
17
16
15
14
13
12
11
VCC
G
B1
B2
B3
B4
B5
B6
B7
B8
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(11)
(19)
(18)
(17)
(16)
(15)
(14)
(13)
(12)
OE
CK
D0 1D
C1
EN
D1
D2
D3
D4
D5
D6
D7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
74LVQ574
DSP BOARD: U1008, U1009
W27C020
DSP BOARD: U1007
Q0
Q7
CE
OE
A0
CONTROL
OUTPUT
BUFFER
CORE
ARRAY
DECODER
PGM
VCC
GND
VPP
A17
31
22
24
IC BLOCK DIAGRAM
74LVC245
DSP BOARD: U1002, U1003, U1014
74VHC245
KEYBOARD: U209
NJM4560
DSP BOARD: U1011~U1013, U1023 & U1025
MULTI-CHANNEL: U604, U605
PRE-OUT BOARD: U609, U610, U612,U614, U615
1
A
- +
2
3
4
8
7
6
5
B
+ -
CS4228AKS
DSP BOARD: U1021