Nellcor OxiMax N-550 Service Manual page 124

INPUT_V
PRD5
S1B
1
POWER ON
PRR4
220_2012
N-550
TP9
T POINT M4
PRC1 PRC3
PRR5
47uF 0.47uF
1K
35VEL 3216
3216
PRD2
1 2
S1B
PQ1 C E
TIP42C/TO-220
B
TP10
T POINT M4
C
B
2
PRD6
S1B
PQ2
E
2N3904/
TO-92
PRR1
680_2012
PRU1
LM2675-ADJ PRR2
1.5K_F
1
CB
PRC4
7
VIN
10nF
8
VSW
Power IN
PL3
PRD3
SB3040
S1B
2 1
F1
50T
PRD4
250V
S1B
T2AL
2 1
PRR3
5.6K_F
PL2
SB3040
PRL1
BDS8040D-330M
PRC5
100uF
PRC6
PRD1
16V
0.1uF
MBRS340
TA
lowESR
VIN
J1
1
2
3
Power Module
4
Input/Battery
5
Input
6
7
8
CON8
BAT-
BAT+
Input and DC/DC Schematic Diagram
Technical Discussion
+5VB +5V
TP13
TP12
1 1
T POINT M4 T POINT M4
1 2
PRC2
PRD7
47uF_16VEL
S1B
Figure 50: Main PCB DC/Battery
117