Service manual

S-31
Figure S-13
Display PCB Schematic Diagram (1 of 2)
035195
VDD
TP2
VDD
PULSE RATESpO2
IICDATA
TH
0.1U
C1
C2
47U
10V
TH
+
IIC_SCK
LEDEN
VDD
DS6
THNKR141SC
E
4
A
10
B
9
C
8
1
CA1
6
CA2
D
5
DP
7
F
2
G
3
E
D
C
B
G
F
A
DP
3
2
4
7
5
6
1
8
9
10
J1
CON_7X2R235
9
87
65
43
2
1413
1211
10
1
9
8
6
4
2
1413
1211
10
1
TP1
GND
DIG7
DIG8
1000P
C3
TH
DS7 TH
HDSP-4830
12
13
14
15
16
17
18
19
11
20
9
8
7
6
5
4
3
2
10
11
10
2
3
4
5
6
7
8
9
20
11
19
18
17
16
15
14
13
12
DS2
7
DP
G
3
CA1
1
10
A
9
B
8
C
5
D
4
E
2
F
3
G
A
F
G
B
C
D
E
NKR141SC TH
F
2
E
4
DP
7
D
5
CA2
6
C
8
B
9
A
10
6
1
7
3
2
4
5
8
9
10 10
9
8
5
4
2
3
7
DS3
7
DP
G
3
CA1
1
10
A
9
B
8
C
5
D
4
E
2
F
3
G
A
F
G
B
C
D
E
NKR141SC TH
F
2
E
4
DP
7
D
5
CA2
6
C
8
B
9
A
10
6
1
7
3
2
4
5
8
9
10 10
9
8
5
4
2
3
7
DS4
7
DP
G
3
CA1
1
10
A
9
B
8
C
5
D
4
E
2
F
3
G
A
F
G
B
C
D
E
NKR141SC TH
F
2
E
4
DP
7
D
5
CA2
6
C
8
B
9
A
10
6
1
7
3
2
4
5
8
9
10 10
9
8
5
4
2
3
7
DS5
7
DP
G
3
CA1
1
10
A
9
B
8
C
5
D
4
E
2
F
3
G
A
F
G
B
C
D
E
NKR141SC TH
F
2
E
4
DP
7
D
5
CA2
6
C
8
B
9
A
10
6
1
7
3
2
4
5
8
9
10 10
9
8
5
4
2
3
7
DIG6DIG5
SEGC
SEGD
SEGE
SEGF
SEGG
SEGDP
DIG1
SEGDP
SEGG
SEGF
SEGE
SEGD
SEGC
SEGB
SEGA
DIG1
DIG2
DIG3
DIG4
DIG5
DIG6
DIG7
DIG8
SEGA
SEGB
SEGC
SEGD
SEGE
SEGF
SEGG
SEGDP
DIG3
DS1
7
DP
G
3
CA1
1
10
A
9
B
8
C
5
D
4
E
2
F
3
G
A
F
G
B
C
D
E
NKR141SC TH
F
2
E
4
DP
7
D
5
CA2
6
C
8
B
9
A
10
6
1
7
3
2
4
5
8
9
10 10
9
8
5
4
2
3
7
DIG2
SEGB
DIG4
33.2K
R9
TH
U1
MAX7219
SEGG
17
SEGF
15
21
SEGE
SEGDP
22
SEGD
23
SEGC
20
SEGB
16
14
SEGA
PWR
19
LOAD
12
ISET
18
4
GND2
GND1
9
24
DOUT
DIN
1
DIG7
8
5
DIG6
DIG5
10
3
DIG4
7
DIG3
6
DIG2
11
DIG1
DIG0
2
CLOCK
13
TH
9
17
24
22
15
21
23
20
16
14
8
5
10
3
7
6
11
2
19
4
13
12
1
18
SEGA