Welch Allyn Atlas - 620008; Page 1

A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
On/Standby
Place capacitors
by connector
AC On LEDs
Trend
Lead Select
Print
Break-Away PCB Section
Flag Pole Area
Place one tantalum
cap near each seven
segment LED group
Place one
ceramic cap
near each
IC
Silence Button
Break-Away PCB
Section
Silence
Switch
7
1
9
Pull-up Resistor Network Detail
5
6
4
8
10
23
Silence LED
Jim Belesiu
Jim Belesiu
3/15/99
3/15/99
3/23/99 LPP
JAC
5-39251
L. Phillips
Z. Psenicnik
J. Bello
3/24/99
3/24/99
3/24/99
B No Load D16
D13 to Low Profile, R51 to 316C
5-39485 4/28/99LPP LPP
7/23/99LPP5-39994
620008 C
Front Panel Display Board
C
1
5
Friday, July 23, 1999
Title
Size
Document Number
Rev
Date: Sheet of
Welch Allyn Inc.
Schematic:
Release For Production
Approved
Checked
Designed
Drawn
Initial Date
REV
Description
ECN/ECO Init
Date Ckd
A Release to Production
NIBP LED Circuits
Front Panel - C
LED_NIBP_Clock
LED_NIBP_Latch
LED_NIBP_Data_In
LED_NIBP_Data_Out
Silence-LEDLED_NIBP_Enable
I705124
Front Panel - D
LED_SpO2_Clock
LED_SpO2_Latch
LED_SpO2_Data_In
LED_SpO2_Enable
Keyboard Circuits
Front Panel - A
Key-Clock-b
Key-Latch-b
Key-Data-b
On/Off-sw
Silence-Switch
Trend
Lead-Select
Print
I705144
Front Panel - B
LED_TP_Data_In
LED_TP_Clock
LED_TP_Latch
LED_TP_Data_Out
LED_TP_Enable
On/Off-sw
Clock1
Print
Lead-Select
Trend
ACON-LED
u13-out
u19-out
Print-sw
Lead-Select-sw
FP-Common
ACLED-2
ACLED-1
AC-On-x
Sil-Sw-a
D10-C
D10-Vcc
Silence-Switch
On-Led
Silence-LED
Sil-Sw-b
Key-Clock
LED-Data
LED-Latch-2
u26-18
Key-Latch-b
LED-Latch-n
Key-data-b
Key-Data
LED-Data-b
Clock3
u26-9
u26-7
LED-Latch-1
Key-Latch-n
Clock2
LED_SPO2_enable
LED_TP_enable
LED-Enable
LED_NIBP_enable
Trend-sw
VCC
VCCVCC
VCC VCC VCC VCC VCC
VCC VCC VCC VCC VCC
VCC
VCC VCC VCC
VCC
VCC
VCC VCC
VCC
VCC VCC
VCC
VCC VCCVCC VCC VCC
VCC
TP2
C18
0.1uF
J2A
flex-cable-5
1
2
3
4
5
TP3
J2xA
flex-cable-5
1
2
3
4
5
TP4
C4
0.1uF
+ C1
4.7uF
U1F
74HC04
13 12
C21
0.1uF
+ C8
4.7uF
C24
0.1uF
+ C10
4.7uF
C20
0.1uF
+ C11
4.7uF
C23
0.1uF
+ C28
4.7uF
C25
0.1uF
C2
0.1uF
R1
2.2K
2 3 4 18
5 6 7
C3
0.1uF
C26
0.1uF
C5
0.1uF
R71
100
C6
0.1uF
U26
74HC244
2
4
6
8
11
13
15
17
1
19
18
16
14
12
9
7
5
3
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
1G
2G
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
C7
0.1uF
R72
100
C16
0.1uF
J1
HEADER 7X2
12
34
56
78
910
11 12
13 14
R73
100
C12
0.1uF
+ C27
4.7uF
TP182
C13
0.1uF
+ C9
4.7uF
TP183
C14
0.1uF
TP184
C15
0.1uF
D1
5x5 Green
1 2
U1A
74HC04
1 2
C19
0.1uF
D2
5x5 Green
1 2
U1B
74HC04
3 4
C22
0.1uF
SW13
12
U1C
74HC04
5 6
D10
T1 (3mm) Red
12
SW9
12
U1D
74HC04
9 8
SW22
1 2
SW11
12
U1E
74HC04
11 10
SW28
1 2
R67 1.21K
1 2
J3A
flex-cable-5
1
2
3
4
5
R51
316
R66 1.21K
1 2
J3xA
flex-cable-5
1
2
3
4
5
D13
T1 (3mm) Green
12
R65 1.21K
1 2
R2
2.15K
C17
0.1uF
R68 1.21K
1 2