Kenwood NXR-800 Service Manual page 198

BU4829FVE
IC708
4 3 VOLTAGE
VDD NC
DETECTOR
2
SUB
3.3V
5 1
GND VoUT
TAAD_SW
RXAD_SW
R781 100k
R782 100k
R794 100k
R783 100k
R784 100k
CE2A R785 2.7k
R786 100k
R787 100k
R788 100k
0 CKE
CP807
0 RAS 100k
RD/WR
RD/CASS
CP808
WE3/DQM3
100k
WE2/DQM2
WE1/DQM1
CP809 100k
WE0/DQM0
R803 100k
R796 100k
CS5
CP810 100k
CS4
0 CS3
R799 100k
R800 100k
0 CS1
R801 100k
R802 100k
0 CS0
C773 0.1u
NAND GATE
IC710
74AHC1G00GW
4
3
GND oUTY
2
INA
5
1
INB
VCC
C770 0.1u
BUFFER
IC709
TC7SH126FU-F
3 4
GND oUTY
R772
2
INA
1 5
100k
G VCC
C785
OR GATE
IC712
TC7SH32FU-F
1
INB
1G
2
INA
54
3
3 GND oUTY
53 D31
5
52
C784
4
51
D30
4
50
D29
3
C772
49
Q4
48
0.1u D28
2
47
D27
1
46
3
45
D26
0
44
D25
9
OR GATE
C771
43
Q3
42 IC713
0.1u D24
8
TC7SH32FU-F
41
2
1
INB VCC
40
2
2
INA
39
3
MH
GND oUTY
38
K
37
E
36
1
35
A13
1
C816 0.1u
34
A11
9
33
A10
8
32
A9
NAND GATE
7
31
A8 IC723
6
74AHC1G00GW
30
A7
5
1
INB VCC
29
A6
4 2
INA
28
3
1
GND oUTY
EECS
EESK
EEDo
EEDi
C791 0.1u
OCTAL BUFFER
IC714
TC74LCX244FK
1
1oE VCC
R821
2
1A1 2oE
0 3
2Y4 1Y1
4
1A2 2A4
5
2Y3 1Y2
WE0/DQM0
6
1A3 2A3
7
2Y2 1Y3
A10
8
1A4 2A2
R/B/iREQ 9
2Y1 1Y4
10
GND 2A1
C795 0.1u
OCTAL BUFFER
IC715
TC74LCX244FK
1
1oE VCC
A9 2
1A1 2oE
A05_CF 3
2Y4 1Y1
A8 4
1A2 2A4
A04_CF 5
2Y3 1Y2
A7 6
1A3 2A3
7
A03_CF
2Y2 1Y3
A6 8
1A4 2A2
A02_CF 9
2Y1 1Y4
10
GND 2A1
C792 0.1u
OCTAL BUFFER
IC716
TC74LCX244FK
1
1oE VCC
WE2/DQM2
2
2oE
1A1
3
A01_CF
1Y1
2Y4
WE1/DQM1 4
1A2 2A4
A00_CF 5
1Y2
2Y3
RD/CASS 6
2A3
1A3
CE2A_CF 7
2Y2 1Y3
CS5
8
2A2
1A4
9
IOWR
1Y4
2Y1
10
GND 2A1
0.1u C790 0.1u
5
VCC
4
OCTAL BUFFER
0.1u
IC717
TC74LCX245FK
1
DIR VCC
D15 2
A1 oE
D14 3
A2 B1
D13 4
A3 B2
D12 5
A4 B3
D11 6
A5 B4
D10 7
A6 B5
D9 8
A7 B6
D8 9
A8 B7
10
GND B8
5
C793 0.1u
4
OCTAL BUFFER
IC718
TC74LCX245FK
1
VCC
DIR
D7 2
A1 oE
D6 3
A2 B1
D5 4
B2
A3
D4 5
A4 B3
D3 6
A5 B4
D2 7
B5
A6
5
D1 8
A7 B6
D0 9
A8 B7
4 10
B8
GND
IC720
R830
AT93C46DN-SH
100k
1 8
CS VCC
2 7
SK DC
3 6
DI oRG
4 5
Do GND
CONTROL SW
Q706
RT1N141M-T111
20
19
18
R835
17
16
0
R833
15
14 REG
0
13
A10_CF
12
11 R/B/iREQ_CF
20
19
18
A09_CF
17 A5
16
A08_CF
15 A4
14 A07_CF
13
A3
12 A06_CF
11 A2
20
19
18
IORD
17
A1
16
WE_CF
15 A0
14
RD_CF
13
CE2A
12
CE1A_CF
11
WE3/DQM3
R834
100k
20
19
18 D15_CF
17 D14_CF
D13_CF
16
15 D12_CF
14 D11_CF
D10_CF
13
12 D09_CF
11 D08_CF
R832
100k
20
19
18 D07_CF
17 D06_CF
D05_CF
16
15 D04_CF
14 D03_CF
D02_CF
13
12 D01_CF
11 D00_CF
C802 0.1u
IC721
TC7SH08FU-F
4 3
oUTY GND
2
INA
5 1
VCC INB
AND GATE
C812
0.1u
RESET_CF
WAIT_CF
C809 0.1u
OR GATE
IC722
TC7SH32FU-F
5
CD2 1
VCC
INB
2
INA
4
3
GND oUTY
CD1
D11_CF
D03_CF
D12_CF
D04_CF
D13_CF
D05_CF
D14_CF
D06_CF
D15_CF
D07_CF
CE2A_CF
CE1A_CF
IORD
RD_CF
IOWR
WE_CF
R/B/iREQ_CF
A10_CF
A09_CF
A08_CF
A07_CF
RESET_CF
WAIT_CF
A06_CF
A05_CF
A04_CF
A03_CF
A02_CF
A01_CF
A00_CF
REG
D00_CF
D08_CF
D01_CF
D09_CF
D02_CF
D10_CF
J701
26 1
27 2
28 3
29 4
30 5
31 6
32 7
33 8
34 9
35 10
36 11
37 12
38 13
39 14
40 15
41 16
42 17
43 18
44 19
45 20
46 21
47 22
48 23
49 24
50 25