Welch Allyn Atlas Service Manual page 124

A
VCC
4
U20
u19-out 14 15
LED_NIBP_Data_In SER QA
1
QB
11 2
SRCLK QC
10 3
SRCLR QD
4
QE
12 5
RCLK QF
13 6
G QG
7
QH
9
QH
74HC595A
TP112
TP181
3
VCC
U23
14 15
SER QA
1
QB
11 2
SRCLK QC
10 3
SRCLR QD
4
QE
12 5
RCLK QF
13 6
G QG
7
QH
9
QH
74HC595A
TP141
TP138
TP139
LED-Latch-2
LED_NIBP_Latch
Clock3
LED_NIBP_Clock
LED-NIBP-Enable
LED_NIBP_Enable
2
R59
1.21K
Silence-LED
TP179
u13-out
LED_NIBP_Data_Out
1
A
B
TP89
R38 Systolic Hundreds
680
u20-15 D40
8 1
u20-1 5 4 d40-g 10
"G"
u20-2 d40-f
6 3 9
"F" A
u20-3 d40-e
7 2 1
"E" F B
d40-d 2
"D" G
d40-c
4
"C" E
C
u20-4 5 4 d40-b 6
"B" D
u20-5 6 3 d40-a 7
"A"
u20-6
7 2 5
Dp
8 1
3
Anode-1
R41
8
Anode-2
TP105 680
7-SEG LED 0.5
TP180
R54 NIBP Alarm On/Off
2.15K
D15
u20-7
d15-c 2 1
VCC
T1 (3mm) Red
u20-out
TP114 R44 Diastolic Hundreds
680
8 1 D43
u23-15 5 4 d43-g 10
"G"
u23-1 d43-f
6 3 9
"F" A
u23-2 7 2 d43-e 1
"E" F B
u23-3 d43-d
2
"D" G
u23-4 d43-c
4
"C" E C
u23-5 5 4 d43-b 6
"B"
D
u23-6 d43-a
6 3 7
"A"
u23-7
7 2 5
Dp
8 1
3
Anode-1
TP126 R47
8
Anode-2
680
TP132 7-SEG LED 0.5
VCC
u23-out
TP142
u25-out
VCC
U13
14
SER QA
QB
11
SRCLK QC
10
SRCLR QD
QE
12
RCLK QF
13
G QG
QH
QH
74HC595A
B
C
VCC
TP91 R39
680
U21 8 1
14 15 u21-15 5 4 d41-g
SER QA
u21-1 d41-f
1 6 3
QB
u21-2 d41-e
11 2 7 2
SRCLK QC
10 3 u21-3 d41-d
SRCLR QD
u21-4 d41-c
4
QE
12 5 u21-5 5 4 d41-b
RCLK QF
13 6 u21-6 6 3 d41-a
G QG
u21-7
7 7 2
QH
8 1
9
QH
TP101 R42
74HC595A 680
R55 BP Sys Hi
215
D6
d6-c
2 1
TP110
T1.75 (5mm) Green
TP113 u21-out
VCC
TP116 R45
680
U24 8 1
14 15 u24-15 5 4 d44-g
SER QA
u24-1 d44-f
1 6 3
QB
11 2 u24-2 7 2 d44-e
SRCLK QC
u24-3 d44-d
10 3
SRCLR QD
u24-4 d44-c
4
QE
12 5 u24-5 5 4 d44-b
RCLK QF
u24-6 d44-a
13 6 6 3
G QG
u24-7
7 7 2
QH
8 1
9
QH
TP128 R48
74HC595A 680
R58 BP Dia Hi
215
D11
d11-c
2 1
TP136
T1.75 (5mm) Green
u24-out
TP140
VCC
D31 D30
Q60 Q30
TP1 R24
150
5 4 d31-a
15 u13-15 6 3 d30-a
u13-1 d29-a
1 7 2
2 u13-2 8 1 d28-a
3 u13-3
u13-4 d25-a
4
5 u13-5 5 4 d26-a
u13-6 d24-a
6 6 3
u13-7 d22-a
7 7 2
8 1
9
R25
TP8 150
C
D
VCC
Systolic Tens
D41
U22
10 14 15 U22-15
"G" SER QA
u22-1
9 1
"F" A QB
u22-2
1 11 2
"E" F B SRCLK QC
2 10 3 u22-3
"D" G SRCLR QD
u22-4
4 4
"C" E QE
C
6 12 5 u22-5
"B" D RCLK QF
7 13 6 u22-6
"A" G QG
u22-7
5 7
Dp QH
3 9
Anode-1 QH
8
Anode-2
74HC595A
7-SEG LED 0.5
VCC
u22-out
VCC
Diastolic Tens
D44 U25
u25-15
10 14 15
"G" SER QA
u25-1
9 1
"F" A QB
1 11 2 u25-2
"E" F B SRCLK QC
u25-3
2 10 3
"D" G SRCLR QD
u25-4
4 4
"C" E C QE
6 12 5 u25-5
"B" RCLK QF
D
u25-6
7 13 6
"A" G QG
u25-7
5 7
Dp QH
3 9
Anode-1 QH
8
Anode-2
74HC595A
7-SEG LED 0.5
BP Dia Lo
VCC
D29 D28 D25 D26 D24 D22
Q15 Q10 Q5 Q3 Q1 Qx
Initial
Drawn
Jim Belesiu 3/15/99
Designed
Jim Belesiu 3/15/99
Checked
L. Phillips 3/24/99
Approved
Z. Psenicnik 3/24/99
Release For Production
J. Bello 3/24/99
D
E
REV Description ECN/ECO Init Date Ckd
A Release to Production 5.-39251 JAC 3/23/99 LPP
B No Load D16 5-39485 LPP 4/28/99 LPP
C D13 to Low Profile, R51 to 316 5-39994 LPP 7/23/99
TP93 R40 Systolic Ones
680
D42
8 1
5 4 d42-g 10
"G"
d42-f
6 3 9
"F" A
d42-e
7 2 1
"E" F B
d42-d 2
"D" G
d42-c
4
"C" E
C
5 4 d42-b 6
"B" D
6 3 d42-a 7
"A"
7 2 5
Dp
8 1
3
Anode-1
TP103 R43
8
Anode-2
680
7-SEG LED 0.5
R56 BP Sys Lo
215
D8
d8-c
2 1
VCC
TP111
T1.75 (5mm) Green
680
TP118 Diastolic Ones
R46
8 1 D45
5 4 d45-g 10
"G"
d45-f
6 3 9
"F" A
7 2 d45-e 1
"E" F B
d45-d
2
"D" G
d45-c
4
"C" E C
5 4 d45-b 6
"B"
D
d45-a
6 3 7
"A"
7 2 5
Dp
8 1
3
Anode-1
TP130
8
Anode-2
680
R49 7-SEG LED 0.5
R57
215
D14
d14-c
2 1
VCC
TP137 T1.75 (5mm) Green
Welch Allyn Inc.
Date
620008.dsn
Schematic:
Title
NIBP LED Drivers
Size Rev
Document Number
620008 C
C
Date: Friday, July 23, 1999 Sheet 4 of 5
E
4
3
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