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FR17
FQ17
470
2
2N2907A
FR23
FQ23
470
2
2N2907A
N-550B
FDIGIT 1
FR18
470
FQ18
2
2N2907A
FU2
8
FSEG a
A
7
FSEG b
B
3
FSEG c
C
2
FSEG d
D
BI-FND
FDIGIT 4
FR24
FQ24
470
2
2N2907A
FU3
8
FSEG a
A
7
FSEG b
B
3
FSEG c
C
2
FSEG d
D
BI-FND
SpO2 Display Digits
FDIGIT 2
FR19
FR20
470
FQ19
470
FQ20
2
2
2N2907A
2N2907A
4
DP
6
G
5
F
1
E
BPM Display Digits
FDIGIT 5
FR25
FR26
FQ25
470
FQ26
470
2
2
2N2907A
2N2907A
4
DP
6
G
5
F
1
E
FDIGIT 3
FR21
FR22
FQ21
470
FQ22
470
2
2
2N2907A
2N2907A
FDP
FSEG g
FSEG f
FSEG e
FDIGIT 6
FR27
FR28
FQ28
FQ27
470
470
2
2
2N2907A
2N2907A
FDP
FSEG g
FSEG f
FSEG e
Technical Discussion
TP40
T POINT F1
FRF0
FRF1
TP41
T POINT F1
TP42
T POINT F1
FRF2
FRF3
TP43
T POINT F1
Figure 56: Front Panel PCB
7-Segment Display
Schematic Diagram
131
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