Mallinckrodt NELLCOR NPB-195 Service Manual page 87

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035262
ADDR[15:0]
STATIC RAM
U32
I193
ADDR0
10
10
A0
ADDR1
9
9
A1
ADDR2
8
8
A2
ADDR3
7
7
A3
ADDR4
6
6
A4
ADDR5
5
5
A5
R79
ADDR6
4
4
A6
10.0K
ADDR7
3
3
A7
ADDR8
A8
ADDR9
A9
ADDR10
A10
ADDR11
A11
ADDR12
A12
26
26
A13
1
1
A14
WR-L
27
27
WE
RD-L
22
22
OE
RAMEN-L
20
20
CE
55257S
U31
ADDR1
24
24
A0
ADDR2
25
25
A1
ADDR3
26
26
A2
ADDR4
27
27
A3
ADDR5
28
28
A4
ADDR6
29
29
A5
ADDR7
30
30
A6
ADDR8
31
31
A7
ADDR9
32
32
A8
ADDR10
35
35
A9
ADDR11
36
36
A10
ADDR12
37
37
A11
ADDR13
38
38
A12
ADDR14
39
39
A13
ADDR15
40
40
A14
41
41
A15
42
42
N.C.
ROMEN-L
3
3
CE
VDD
RD-L
22
22
OE
43
43
PGM
2
2
VPP
27C1024
I179
R83
10.0K
BIGROM
R94
0
VDD
L20
I202
32KX8
28
28
SRAMPWR
PWR
+
C103
C85
47U
0.1U
O0 11
11
AD0
10V
Z5U
12
12
AD1
7343
O1
13
13
AD2
O2
15
15
AD3
O3
16
16
AD4
O4
17
17
AD5
O5
18
18
AD6
O6
19
19
AD7
O7
14
14
GND
VDD
L19
I203
EPROMPWR
+
EPROM
C86
C104
47U
0.1U
64KX16
10V
Z5U
44
44
7343
PWR
21
21
AD0
D0
20
20
AD1
D1
19
19
AD2
D2
18
18
AD3
D3
17
17
AD4
D4
16
16
AD5
D5
15
15
AD6
D6
14
14
AD7
D7
11
11
AD8
D8
10
10
AD9
D9
9
9
AD10
D10
8
8
AD11
D11
7
7
AD12
D12
6
6
AD13
D13
5
5
AD14
D14
4
4
AD15
D15
GND1 34
34
12
12
GND2
N195SPO2
AD[15:0]
PIC and Speaker Schematic Diagram B
Figure 11-9
11-23

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