Welch Allyn Atlas Service Manual page 122

A
4
SW23
1 2
ETCO2 Alarm On-Off SW24
1 2
SW1
1 2
HR Alarm On-Off
SW2
1 2
SW3
LH Select
1 2
SW5
LH Adjust (+) 1 2
3
SW7
LH Adjust (-)
1 2
Trend
Trend
Lead-Select
Lead-Select
Print
Print
SW25
1 2
SW26
NIBP Alarm On-Off
1 2
SW15
1 2 NIBPalarm-sw
SpO2alarm-sw
RHselect-sw
SpO2 Alarm On-Off SW16 RHadjust+sw
1 2
SW17
2
1 2
RH Select
SW18
1 2
RH Adjust (+)
SW19
1 2
RH Adjust (-)
SW20
BP Auto
1 2
SW21
BP Start-Stop 1 2
1
A
B
VCC
TP66
R5
10K
TP67 TP68 TP69 TP70 TP71
u2-10 10
SER
etco2-sw
11
A
HRalarm-sw
12
B
LHselect-sw
13
C
LHAdjust+sw
14
D
LHAdjust-sw 3
E
4
F
5
G
6
H
2
CLK
15
INH
1
SH/LD
74HC165
VCC
R7
10K
TP79 TP80 TP81 TP82
U4
10
SER
11
A
12
B
13
C
14
D
RHadjust-sw 3
E
BPauto-sw 4
F
BPstart/stop-sw
5
G
6
H
2
CLK
15
INH
TP84 TP85 TP86
1
SH/LD
74HC165
B
C
9 8 7 6
10 5
U2
1 2 3 4
Pull-up Resistor Network Detail
SW4
QRS Volume (+)
1 2
TP77
9 u2-9
QH
SW6
7
QH
QRS Volume (-) 1 2
SW8
Alarm Volume (+)
1 2
SW10
Alarm Volume (-) 1 2
SW12
Time
1 2
On / Standby
SW14
1 2
SW27
1 2
9
QH
7
QH
C
D
VCC
R6
10K
TP72 TP73 TP74 TP75 TP76
10
QRSvol+sw
11
QRSvol-sw 12
Alarmvol+sw
13
Alarmvol-sw
14
Time-sw
U3-4
TP178
15
D48
BAV99L
3
TP83
TP87
TP88
Clock1
Initial Initial
Drawn Drawn
Jim Belesiu 3/15/99
Designed Designed
Jim Belesiu 3/15/99
Checked Checked
L. Phillips 3/23/99
Approved Approved
3/23/99
Z. Psenicnik
Release For Production Release For Production
J. Bello 3/23/99
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
U3
SER
A
B
C
D
3
E
4
F
5
G
6 9
H QH
2 7
CLK QH
INH
1
SH/LD
74HC165
On/Off-sw
Key-Data-b
Key-Latch-b
Key-Clock-b
Silence-Switch
Welch Allyn Inc. Welch Allyn Inc.
Date Date
620008.dsn
Schematic: Schematic:
Title Title
Keyboard Scanner Front Panel Display Board
Size Size Rev Rev
Document Number Document Number
620008 62008 A C
C C
Date: Date: Friday, July 23, 1999 Friday, July 23, 1999 Sheet Sheet 1 2 of of 5 5
E
4
3
2
1