NAD C 720BEE - Microprocessor Connection Diagram

2
3
1
IC702
IS1U60L
+5V
+5V
+5V
DATA CLK ST DOUT DIN CLK STB IR OUT IR IN
PSEN
29
ALE/P
30
TXD
11
RXD
10
P27
28
P26
27
P25
26
P24
25
P23
24
P22
23
P21
22
P20
21
P00
39
P01
38
P02
37
P03
36
P04
35
P05
34
P06
33
P07
32
WR
16
RD
17
RESET
9
X2
18
X1
19
EA/VP
31
T0
14
T1
15
INT0
12
P10
1
P11
2
P12
3
P13
4
P14
5
P15
6
P16
7
P17
8
INT1
13
VCC
40
GND
20
IC704
AT89C55WD
RDS CLK
13
2
IC708
TCM810MEND
5 6
IC705
11.0592MHz
IR OUT
CIRCUIT
IR IN
CIRCUIT
IC31
NJU7313AL
ST
DATA
CLK
IC703
UPD16311
+5V-30V
CLK
9 5 6 8
STB DIN DOUT
ENCODER
CONTROL
CIRCUIT
10k
2k
470 Q712
+5V
Sandby control line
24C64
18V Power Supply
Circuit
STR
D
CLK
IC707
4094
STR
D
CLK
IC32
4094
STR
D
CLK
IC33
4094
1
2
3
1
2
3
1
2
3
DATA CLK ST2 ST
ST2
ST
ST
CLK
CLK
CLK
DATA
DATA
10K10K10K10K10K10K10K10K
+5V
RDS DATA PLL CE PLL D0 PLL D1 PLL CLK1 TUNER STEREO
1 2 3 4 5 6 7 8 9
KST-MB114MA0/1
TUNER MODULE
RDS CLK RDS DATA PLL CE PLL D0 PLL D1 PLL CLK1 TUNER STEREO
22pF
4.7pF
MICROPROCESSOR CONNECTION DIAGRAM
Vdd Vdd Vee
14
33 34
+5V
FLASH
Power Suplly
Display circuit
DATA
9
1 2 3 4 5 6 7 8 9
10 11 12 13 14
15 16 17 18 19
20 21 22 23 24 25 26 27 28