Blease 8500 - Page 64

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Title
Number RevisionSize
A3
Date: 4-Feb-2002 Sheet of
File: \\Cad 3\c\1 JONS ARCHIVE\8500archive\circuit diagrams\10110088-3\10110088-3\10110088-3.DDBDrawn By:
+5V
AGND
Fresh Gas Flow
Patient Flow
-5V
+4VREF
-4V
Patient flow
press_1.sch
Drive Flow
Patient Pressure
Drive Pressure
AGND
+5V
-5V
+4VREF
-4V
Sensors
press_2.sch
14PL1
Valve Control
24PL1
PLM
26 PL1
22 PL1
TEMP
21 PL1
20 PL1
Drive Flow
19 PL1
Drive Pressure
18 PL1
Patient Pressure
17 PL1
Ovrprs
16PL1
AGND
25PL1
A+5V
23PL1
4VREF
15PL1
+12v
13PL1
CTS
12PL1
TX0
11PL1
RX0
10PL1
DGND
C58
100n
3
N.C.
6PL2-1
+6V
9PL1
RX1
2PL2-2
AGND
7PL1
TX1
5
N.C.
1
N.C.
8PL1
AGND
4PL1
PRSOUT
FL2
1n
FL1
1n
FL3
1n
20 SK1
DTR
4 SK1
CTS
6 SK1
DSR
5 SK1
RTS
3 SK1
RX0
2 SK1
TX0
7 SK1
GND
1 SK1
SHIELD
C57
10u
C51
100n
C45
10u
C44
10u
1 PL3
AGND
2 PL3
PATPRS
3 PL3
N.C.
4 PL3
PFZ
5 PL3
RX1
6 PL3
+6V
7 PL3
AGND
8 PL3
FGZ
9 PL3
TX1
FL12
1n
FL8
1n
FL6
1n
FL5
1n
FL9
1n
FL4
1n
FL11
1n
FL7
1n
to PL4 on CPU board.
26-way Transition 25-way D Socket
DCE Spec
+4VREF
AGND
9-way D Plug
EXTRN OUT
Patient Flow
Fresh Gas Flow
Fresh Gas Flow
Patient Flow
Pressure Interface
1 of 3
RHC/IRBW
1 2
3
4
5
RP1
4*4K7
C60
100N
C61
100N
C59
100N
C62
100N
R52
47K
R51
47K
R54
47K
R53
47K
R55
47K
C46
47N
C49
47N
C50
47N
C48
47N
C47
47N
AGND
AGND
AGND
AGND
AGND
D5
BAS16
S1
GAS VALVE
Vin
1
+5V
3
GND
2
IC11
LM2937ES-5.0
BOOST
1
CAP+
2
GND
3
CAP-
4
Vout
5
LV
6
OSC
7
Vin
8
IC8
LTC660CS8
C41
150u
C40
150u
AGND
AGND
AGND
AGND
R56
220R
D6
ZRC400F03
AGND
TR1
FDV303N
Note. This is a digital input FET
AGND
AGND
+5V
+5V
-5V
-4V
-5V
-4V
+4VREF
+4VREF
CHASSIS
CHASSIS
FGO
PFO
DF
PP
DP
+5V
AGND
C63
100N
R65
510K
R69
10R
R68
1K
R67
1K
FGZ
PFZ
10110088 3
PFZ
FGZ
AUTO ZERO
Patient Flow
R70
1K
R71
1K
R72
47K
C64
10N
Valve Control
+5V
-5V
-4V
Valve Control
C65
100N
D7
BAS16
R74
2K
R73
100R
Absorber switch
Absorber switch
+5V
-5V
1ABS
1
2ABS
2
S2
GAS VALVE
R75
10k
3
1
2
PL2
AGND
+6V
PSU GND
FG AUTOZERO