Mallinckrodt NELLCOR NPB-195 Service Manual page 95

LINE
W2
18GA_BRN
C3
W1
220P
18GA _GRN/YEL
250V
E C2 TH
4700P
250V
TH E
NEUTRAL
W3
R1
18GA_BLU
390K C1
1/2W 220P
TH 250V
TH
Power Entry
E
MAIN_DC
C11
0.1U
R22
10.0K
U3
R20
1 1
VIN 10.0K
3 3 2 2
GND VOUT
LM35D TH
C10
0.1U
035199
LINE_IN
T2
1 1 15 15 FAC+
SW1
115V 1 1
230V 3 3 2 2
T1
3 3 13 13
E3490A 6 6 6 6 12 12
TH
4 4 5 5
8 8 10 10 FAC-
EPS2PC3
TH
OB24-9
NEUT_IN TH
R2
100M
1/4W TH
DT1
600V TH
ESD Protection
Battery Charge
I5
TP1
R11
10.0K
+
2 8
-
R21
73.2K R12
3
+
VREF 10.0K 4
-
U1
I3
+
I6 LM358
5 8
+
8 8
7
FAN_CTRL
6 U2
-
4 LM385S
4 4
-
I1
R7
154K
R25
10.0M
I7
R6
100K
AC+
HIGH CURRENT VIAS
F1 BR1
GBU8B
2 2 I10
C6
TH
0.01U
2ASB TH
4 4 1 1
+ 1.00K
C7
3 3 C5
1/2W
0.1U
F2 15000U
35V
TH
2ASB TH AC-
C8
0.01U
R24
49.9
1/4W TH
C4 Q3
I4
100P
MPSA56
R9
2 2
1.00K
1 1
U1
R8
LM358 3 3
1.00K
1
R16
10.0K
I2
3 3
Q6
1 1 2N7002S
2 2
R3
10.0K
R14
10.0K
I12
I9 1N914S
CR6
3 3 1 1
1N914S
R15
3 3 BATT_CHK
49.9K
Q4
2 2
2N3904
TH
1 1
R17
10.0K
Q1 TH
2N3904
MAIN_DC
I11
Q5
MPSA56
R19 R4
R5
1.00K 499
CR1
CR5
1N4702
TH
22V
15V
SMCJ22C
TH
R23
10.0K
FAN_CTRL
Main Board
BATT_CHK
W7
22GA_WHT
MAIN_DC
W9
R10
22GA_RED
1.50
1/2W
W6
TH
BATT_OUT
22GA_ORN
CHG_IN
W8
22GA_BLK
R13
10.0K
GND
TP2
3 3 Q2
IRF9510
1 1
TH
2 2 4
I8
Requires Heat Sink
Nellcor # 891196
CR7
1 1 3 3
CR4
SW2
MBRS330T3
MTS50B
TH
F3
CHG_OUT BATT+
NC
2ASB TH
Fan Control
J1
2 To Fan
1
CON_2L
CR2
22V
SMCJ22C
TH
35V
100U
+
C9
Battery +
W4
22GA_RED
Battery -
W5
22GA_BLK
Figure 11-17
Power Supply Schematic Diagram
11-39